Costcocostco.com
Accessibility Score
88Needs Improvement
Issues Found
32Moderate1Minor
Issues Found
ModerateLandmarks should have a unique role or role/label/title (i.e. accessible name) combination1 element
Moderate
Landmarks should have a unique role or role/label/title (i.e. accessible name) combinationEach landmark on a page must have either a unique role or a unique accessible name. Duplicate landmarks confuse screen reader users about which section they're navigating to, making it difficult to efficiently move through the page structure.
Failing Elements
.mui-q5ef8c.MuiBox-root:nth-child(1) > .mui-1g5d1bo.MuiBox-root > .mui-1pniqjm.MuiBox-root[data-layout="one_fourth"] > .mui-etn0gy.MuiBox-root > .mui-1kxonj9[data-testid="Carousel"][aria-roledescription="carousel"]
<div class="MuiBox-root mui-1kxonj9" aria-label="Featured promos and announcements slideshow" aria-roledescription="carousel" data-testid="Carousel" role="region">
Fix any of the following:
- The landmark must have a unique aria-label, aria-labelledby, or title to make landmarks distinguishable
ModerateAll page content should be contained by landmarks1 element
Moderate
All page content should be contained by landmarksContent should be organized within high-level landmark regions like <header>, <navigation>, <main>, and <footer>. Content outside these sections is difficult to find and its purpose may be unclear, making navigation inefficient for screen reader users who rely on landmarks to understand page structure.
Failing Elements
#oo_tab
<a id="oo_tab" class="oo_tab_right" href="#" data-oo-display-value=""><img src="//www.costco.com/wcsstore/CostcoUSBCCatalogAssetStore/styles/oo_tab_icon_retina.gif" alt="" data-airgap-id="11">Feedback<span class="screen_reader"> Will open a new window</span></a>
Fix any of the following:
- Some page content is not contained by landmarks
MinorAlternative text of images should not be repeated as text2 elements
Minor
Alternative text of images should not be repeated as textDuplicating alternative text adjacent to an image or link forces screen readers to announce the same information twice. This redundancy is unnecessary and confusing, especially when image buttons repeat their labels in nearby text.
Failing Elements
img[alt="Sports & Fitness"]
<img class="MuiBox-root mui-jsjm..." alt="Sports & Fitness" loading="eager" sizes="(max-width: 768px) 3..." src="https://cdn.bfldr.co..." srcset="https://cdn.bfldr.co..." data-testid="media-asset" imagesx="[object Object]" mobileimagealttext="" mobileimagesx="[object Object]">
Fix all of the following:
- Element contains <img> element with alt text that duplicates existing text
img[alt="Tech Finds "]
<img class="MuiBox-root mui-jsjm..." alt="Tech Finds " loading="eager" sizes="(max-width: 768px) 3..." src="https://cdn.bfldr.co..." srcset="https://cdn.bfldr.co..." data-testid="media-asset" imagesx="[object Object]" mobileimagealttext="" mobileimagesx="[object Object]">
Fix all of the following:
- Element contains <img> element with alt text that duplicates existing text
Passed Audits
<html> element must have a lang attribute1 element
Screen readers need language information to switch between pronunciation libraries. Without a specified language, screen readers default to the user's preferred language, resulting in incorrect pronunciation that sounds like a strange accent and makes content difficult or impossible to understand.
Audit Elements
html
<html lang="en-us">
<html> element must have a valid value for the lang attribute1 element
Screen readers use language-specific sound libraries for proper pronunciation. Invalid language attributes cause screen readers to use the wrong library, making text sound like a confusing accent or completely unintelligible, especially for multilingual users who access content in multiple languages.
Audit Elements
html
<html lang="en-us">
<li> elements must be contained in a <ul> or <ol>84 elements
Lists require proper semantic hierarchy with ul or ol parent elements and li child elements. This structure allows screen readers to announce when users enter a list, how many items it contains, and which item they're currently on, providing essential context for understanding the content.
Audit Elements
.mui-1yu9n49 > .mui-1mlnd8c[data-testid="List"][role="list"] > li[data-testid="ListItem"]:nth-child(1)
<li data-testid="ListItem" class="mui-0">
.mui-1yu9n49 > .mui-1mlnd8c[data-testid="List"][role="list"] > li[data-testid="ListItem"]:nth-child(2)
<li data-testid="ListItem" class="mui-0">
.mui-1yu9n49 > .mui-1mlnd8c[data-testid="List"][role="list"] > li[data-testid="ListItem"]:nth-child(3)
<li data-testid="ListItem" class="mui-0">
.mui-1yu9n49 > .mui-1mlnd8c[data-testid="List"][role="list"] > li[data-testid="ListItem"]:nth-child(4)
<li data-testid="ListItem" class="mui-0">
.mui-1yu9n49 > .mui-1mlnd8c[data-testid="List"][role="list"] > li[data-testid="ListItem"]:nth-child(5)
<li data-testid="ListItem" class="mui-0">
.mui-1mlnd8c[data-testid="List"][role="list"] > li[data-testid="ListItem"]:nth-child(6)
<li data-testid="ListItem" class="mui-0">
.mui-1mlnd8c[data-testid="List"][role="list"] > li[data-testid="ListItem"]:nth-child(7)
<li data-testid="ListItem" class="mui-0">
.mui-1mlnd8c[data-testid="List"][role="list"] > li[data-testid="ListItem"]:nth-child(8)
<li data-testid="ListItem" class="mui-0">
.mui-1n18vzz > .mui-1jc6clx.MuiBox-root > .mui-hmf69j.MuiBox-root > nav[aria-label="Your Information"][data-testid="LinkList"] > .mui-1chcc0f[data-testid="List"][role="list"] > li[data-testid="ListItem"]:nth-child(1)
<li data-testid="ListItem" class="mui-0">
.mui-1n18vzz > .mui-1jc6clx.MuiBox-root > .mui-hmf69j.MuiBox-root > nav[aria-label="Your Information"][data-testid="LinkList"] > .mui-1chcc0f[data-testid="List"][role="list"] > li[data-testid="ListItem"]:nth-child(2)
<li data-testid="ListItem" class="mui-0">
Showing first 10 of 84 audited elements.
All page content should be contained by landmarks925 elements
Content should be organized within high-level landmark regions like <header>, <navigation>, <main>, and <footer>. Content outside these sections is difficult to find and its purpose may be unclear, making navigation inefficient for screen reader users who rely on landmarks to understand page structure.
Audit Elements
#costco-consent-manager
<div id="costco-consent-manager"></div>
#header-content
<div class="MuiBox-root mui-0" id="header-content">
header
<header class="MuiBox-root mui-i9gxme">
.mui-1bgklie
<a class="MuiTypography-root MuiTypography-inherit MuiLink-root MuiLink-underlineHover mui-1bgklie" data-testid="jump-to-mainContent" href="#mainContent" target="_self"><div class="MuiTypography-root MuiTypography-t3 mui-1852yew" data-testid="Text">Skip to Main Content</div></a>
.mui-1852yew
<div class="MuiTypography-root MuiTypography-t3 mui-1852yew" data-testid="Text">Skip to Main Content</div>
.mui-j7qwjs.MuiStack-root
<div class="MuiStack-root mui-j7qwjs">
.mui-a4wj8d
<a class="MuiTypography-root MuiTypography-inherit MuiLink-root MuiLink-underlineNone mui-a4wj8d" data-testid="Link" href="https://www.costco.com/s?keyword=nfdrivers&sortBy=item_page_views%2Bdesc&refine=item_program_eligibility-ShipIt%7C%7Citem_location_availability-in+stock" target="_self">
.mui-p1y98d
<div class="MuiBox-root mui-p1y98d" data-testid="AnnouncementBanner"><div class="MuiTypography-root MuiTypography-t3 mui-1qhyrs" data-testid="Text"><div data-testid="MarkdownRenderer" class="mui-1bx1pg2"><span>Buyer's Picks and Spring Favorites, Shop Now!</span></div></div></div>
.mui-1qhyrs
<div class="MuiTypography-root MuiTypography-t3 mui-1qhyrs" data-testid="Text"><div data-testid="MarkdownRenderer" class="mui-1bx1pg2"><span>Buyer's Picks and Spring Favorites, Shop Now!</span></div></div>
.mui-1bx1pg2
<div data-testid="MarkdownRenderer" class="mui-1bx1pg2"><span>Buyer's Picks and Spring Favorites, Shop Now!</span></div>
Showing first 10 of 925 audited elements.
Alternative text of images should not be repeated as text33 elements
Duplicating alternative text adjacent to an image or link forces screen readers to announce the same information twice. This redundancy is unnecessary and confusing, especially when image buttons repeat their labels in nearby text.
Audit Elements
a[aria-label=" While Supplies Last"] > .mui-1c1kq07.MuiBox-root > img[alt=""][loading="lazy"]
<img alt="" loading="lazy">
a[data-testid="Link_Online-Only"] > .mui-1c1kq07.MuiBox-root > img[alt=""][loading="lazy"]
<img alt="" loading="lazy">
a[data-testid="Link_Treasure Hunt"] > .mui-1c1kq07.MuiBox-root > img[alt=""][loading="lazy"]
<img alt="" loading="lazy">
a[aria-label=" What's New"] > .mui-1c1kq07.MuiBox-root > img[alt=""][loading="lazy"]
<img alt="" loading="lazy">
a[data-testid="Link_Member Favorites"] > .mui-1c1kq07.MuiBox-root > img[alt=""][loading="lazy"]
<img alt="" loading="lazy">
a[data-testid="Link_Recommendations for You"] > .mui-1c1kq07.MuiBox-root > img[alt=""][loading="lazy"]
<img alt="" loading="lazy">
a[aria-label=" Customer Service"] > .mui-1c1kq07.MuiBox-root > img[alt=""][loading="lazy"]
<img alt="" loading="lazy">
img[data-airgap-id="4"]
<img class="MuiBox-root mui-mnie..." alt="Costco US homepage" loading="lazy" sizes="(max-width: 768px) 3..." src="https://bfasset.cost..." srcset="https://bfasset.cost..." data-testid="media-asset" data-airgap-id="4">
#bltbfbc79ddd90ec5c9 > .mui-ebhjg1.MuiBox-root > .mui-1vwgtf7.MuiLink-underlineNone[data-testid="Link"] > .mui-3hbjut.MuiBox-root > .mui-gn1jef.MuiBox-root > .mui-cykfnh.MuiBox-root > .mui-1eyuzx[imagesx="[object Object]"][mobileimagealttext=""]
<img class="MuiBox-root mui-1eyu..." alt="This week's featured..." loading="eager" sizes="(max-width: 768px) 3..." src="https://cdn.bfldr.co..." srcset="https://cdn.bfldr.co..." data-testid="media-asset" imagesx="[object Object]" mobileimagealttext="" mobileimagesx="[object Object]">
img[alt="Shop what's new on Costco.com!"]
<img class="MuiBox-root mui-1eyu..." alt="Shop what's new on C..." loading="eager" sizes="(max-width: 768px) 3..." src="https://cdn.bfldr.co..." srcset="https://cdn.bfldr.co..." data-testid="media-asset" imagesx="[object Object]" mobileimagealttext="" mobileimagesx="[object Object]">
Showing first 10 of 33 audited elements.
ARIA attributes must be used as specified for the element's role124 elements
Using ARIA attributes where they're not expected causes unpredictable behavior in assistive technologies. Following the ARIA specification ensures that screen readers and other tools can properly interpret and communicate your content's meaning to people with disabilities.
Audit Elements
.mui-1yu9n49
<nav class="MuiBox-root mui-1yu9n49" aria-label="Savings and locations" data-testid="LinkList">
a[aria-label=" While Supplies Last"]
<a class="MuiTypography-root MuiTypography-inherit MuiLink-root MuiLink-underlineHover mui-5msltf" data-testid="Link_While Supplies Last" href="https://www.costco.com/s?keyword=whilesupplieslast&COSTID=WSL_Homepage" aria-label=" While Supplies Last" target="_self">
a[data-testid="Link_Online-Only"]
<a class="MuiTypography-root MuiTypography-inherit MuiLink-root MuiLink-underlineHover mui-5msltf" data-testid="Link_Online-Only" href="/s?keyword=online%20only%20&COSTID=online_savings_header" aria-label=" Online-Only" target="_self">
a[data-testid="Link_Treasure Hunt"]
<a class="MuiTypography-root MuiTypography-inherit MuiLink-root MuiLink-underlineHover mui-5msltf" data-testid="Link_Treasure Hunt" href="/s?keyword=treasurehunt&COSTID=TH_header" aria-label=" Treasure Hunt" target="_self">
a[aria-label=" What's New"]
<a class="MuiTypography-root MuiTypography-inherit MuiLink-root MuiLink-underlineHover mui-5msltf" data-testid="Link_What's New" href="https://www.costco.com/s?keyword=new&COSTID=WN_header" aria-label=" What's New" target="_self">
a[data-testid="Link_Member Favorites"]
<a class="MuiTypography-root MuiTypography-inherit MuiLink-root MuiLink-underlineHover mui-5msltf" data-testid="Link_Member Favorites" href="/s?dept=All&keyword=MemberFavorites&COSTID=WN_header" aria-label=" Member Favorites" target="_self">
a[data-testid="Link_Recommendations for You"]
<a class="MuiTypography-root MuiTypography-inherit MuiLink-root MuiLink-underlineHover mui-5msltf" data-testid="Link_Recommendations for You" href="https://www.costco.com/recommendations.html" aria-label=" Recommendations for You" target="_self">
a[aria-label=" Customer Service"]
<a class="MuiTypography-root MuiTypography-inherit MuiLink-root MuiLink-underlineHover mui-5msltf" data-testid="Link_Customer Service" href="https://customerservice.costco.com/" aria-label=" Customer Service" target="_self">
li[data-testid="ListItem"]:nth-child(8) > .mui-12kqaof.MuiButton-text-button[data-testid="Button"]
<button class="MuiButtonBase-root M..." tabindex="0" type="button" id="Button_button-defaul..." data-testid="Button" aria-label="US, Country/Region U..." aria-expanded="false">
#\:r22\:
<input aria-invalid="false" aria-describedby="typeahead-search-fie..." autocomplete="off" id=":r22:" placeholder="Search Costco" class="MuiInputBase-input M..." aria-autocomplete="both" aria-controls="suggestions-list" aria-expanded="false" autocapitalize="none" spellcheck="false" type="text" ...>
Showing first 10 of 124 audited elements.
ARIA attributes must conform to valid names124 elements
Misspelled or non-existent ARIA attributes cannot perform their intended accessibility function. Assistive technologies rely on correctly spelled, current ARIA attributes to convey proper user interface behaviors and structural information to people with disabilities.
Audit Elements
.mui-1yu9n49
<nav class="MuiBox-root mui-1yu9n49" aria-label="Savings and locations" data-testid="LinkList">
a[aria-label=" While Supplies Last"]
<a class="MuiTypography-root MuiTypography-inherit MuiLink-root MuiLink-underlineHover mui-5msltf" data-testid="Link_While Supplies Last" href="https://www.costco.com/s?keyword=whilesupplieslast&COSTID=WSL_Homepage" aria-label=" While Supplies Last" target="_self">
a[data-testid="Link_Online-Only"]
<a class="MuiTypography-root MuiTypography-inherit MuiLink-root MuiLink-underlineHover mui-5msltf" data-testid="Link_Online-Only" href="/s?keyword=online%20only%20&COSTID=online_savings_header" aria-label=" Online-Only" target="_self">
a[data-testid="Link_Treasure Hunt"]
<a class="MuiTypography-root MuiTypography-inherit MuiLink-root MuiLink-underlineHover mui-5msltf" data-testid="Link_Treasure Hunt" href="/s?keyword=treasurehunt&COSTID=TH_header" aria-label=" Treasure Hunt" target="_self">
a[aria-label=" What's New"]
<a class="MuiTypography-root MuiTypography-inherit MuiLink-root MuiLink-underlineHover mui-5msltf" data-testid="Link_What's New" href="https://www.costco.com/s?keyword=new&COSTID=WN_header" aria-label=" What's New" target="_self">
a[data-testid="Link_Member Favorites"]
<a class="MuiTypography-root MuiTypography-inherit MuiLink-root MuiLink-underlineHover mui-5msltf" data-testid="Link_Member Favorites" href="/s?dept=All&keyword=MemberFavorites&COSTID=WN_header" aria-label=" Member Favorites" target="_self">
a[data-testid="Link_Recommendations for You"]
<a class="MuiTypography-root MuiTypography-inherit MuiLink-root MuiLink-underlineHover mui-5msltf" data-testid="Link_Recommendations for You" href="https://www.costco.com/recommendations.html" aria-label=" Recommendations for You" target="_self">
a[aria-label=" Customer Service"]
<a class="MuiTypography-root MuiTypography-inherit MuiLink-root MuiLink-underlineHover mui-5msltf" data-testid="Link_Customer Service" href="https://customerservice.costco.com/" aria-label=" Customer Service" target="_self">
li[data-testid="ListItem"]:nth-child(8) > .mui-12kqaof.MuiButton-text-button[data-testid="Button"]
<button class="MuiButtonBase-root M..." tabindex="0" type="button" id="Button_button-defaul..." data-testid="Button" aria-label="US, Country/Region U..." aria-expanded="false">
#\:r22\:
<input aria-invalid="false" aria-describedby="typeahead-search-fie..." autocomplete="off" id=":r22:" placeholder="Search Costco" class="MuiInputBase-input M..." aria-autocomplete="both" aria-controls="suggestions-list" aria-expanded="false" autocapitalize="none" spellcheck="false" type="text" ...>
Showing first 10 of 124 audited elements.
ARIA attributes must conform to valid values124 elements
ARIA attributes must contain correctly spelled values that match the attribute's expected options. Invalid values prevent the accessibility feature from working, making content inaccessible to assistive technology users who depend on these attributes for navigation and interaction.
Audit Elements
.mui-1yu9n49
<nav class="MuiBox-root mui-1yu9n49" aria-label="Savings and locations" data-testid="LinkList">
a[aria-label=" While Supplies Last"]
<a class="MuiTypography-root MuiTypography-inherit MuiLink-root MuiLink-underlineHover mui-5msltf" data-testid="Link_While Supplies Last" href="https://www.costco.com/s?keyword=whilesupplieslast&COSTID=WSL_Homepage" aria-label=" While Supplies Last" target="_self">
a[data-testid="Link_Online-Only"]
<a class="MuiTypography-root MuiTypography-inherit MuiLink-root MuiLink-underlineHover mui-5msltf" data-testid="Link_Online-Only" href="/s?keyword=online%20only%20&COSTID=online_savings_header" aria-label=" Online-Only" target="_self">
a[data-testid="Link_Treasure Hunt"]
<a class="MuiTypography-root MuiTypography-inherit MuiLink-root MuiLink-underlineHover mui-5msltf" data-testid="Link_Treasure Hunt" href="/s?keyword=treasurehunt&COSTID=TH_header" aria-label=" Treasure Hunt" target="_self">
a[aria-label=" What's New"]
<a class="MuiTypography-root MuiTypography-inherit MuiLink-root MuiLink-underlineHover mui-5msltf" data-testid="Link_What's New" href="https://www.costco.com/s?keyword=new&COSTID=WN_header" aria-label=" What's New" target="_self">
a[data-testid="Link_Member Favorites"]
<a class="MuiTypography-root MuiTypography-inherit MuiLink-root MuiLink-underlineHover mui-5msltf" data-testid="Link_Member Favorites" href="/s?dept=All&keyword=MemberFavorites&COSTID=WN_header" aria-label=" Member Favorites" target="_self">
a[data-testid="Link_Recommendations for You"]
<a class="MuiTypography-root MuiTypography-inherit MuiLink-root MuiLink-underlineHover mui-5msltf" data-testid="Link_Recommendations for You" href="https://www.costco.com/recommendations.html" aria-label=" Recommendations for You" target="_self">
a[aria-label=" Customer Service"]
<a class="MuiTypography-root MuiTypography-inherit MuiLink-root MuiLink-underlineHover mui-5msltf" data-testid="Link_Customer Service" href="https://customerservice.costco.com/" aria-label=" Customer Service" target="_self">
li[data-testid="ListItem"]:nth-child(8) > .mui-12kqaof.MuiButton-text-button[data-testid="Button"]
<button class="MuiButtonBase-root M..." tabindex="0" type="button" id="Button_button-defaul..." data-testid="Button" aria-label="US, Country/Region U..." aria-expanded="false">
#\:r22\:
<input aria-invalid="false" aria-describedby="typeahead-search-fie..." autocomplete="off" id=":r22:" placeholder="Search Costco" class="MuiInputBase-input M..." aria-autocomplete="both" aria-controls="suggestions-list" aria-expanded="false" autocapitalize="none" spellcheck="false" type="text" ...>
Showing first 10 of 124 audited elements.
ARIA hidden element must not be focusable or contain focusable elements165 elements
Elements with aria-hidden="true" are removed from the accessibility API but remain keyboard-focusable, creating confusion about their visibility state. When users tab to these hidden elements, screen readers stay silent, leaving users unaware of what they've focused on or why nothing is being announced.
Audit Elements
li[data-testid="ListItem"]:nth-child(8) > .mui-12kqaof.MuiButton-text-button[data-testid="Button"] > .mui-q5zhp5[width="24"][height="24"]
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" width="24" height="24" role="presentation" focusable="false" aria-hidden="true" fill="none" class="mui-q5zhp5">
li[data-testid="ListItem"]:nth-child(5) > .mui-12kqaof.MuiButton-text-button[data-testid="Button"] > .mui-q5zhp5[width="24"][height="24"]
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" width="24" height="24" role="presentation" focusable="false" aria-hidden="true" fill="none" class="mui-q5zhp5">
#Button_icon-links-member-links-desktop-signin-mobile > .mui-19u4yy7[width="24"][height="24"]
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" width="24" height="24" role="presentation" focusable="false" aria-hidden="true" fill="none" class="MuiBox-root mui-19u4yy7">
.mui-nyp9hh > .mui-1jc6clx.MuiBox-root > .mui-hmf69j.MuiBox-root > nav[aria-label="Your Information"][data-testid="LinkList"] > .mui-1chcc0f[data-testid="List"][role="list"] > li[data-testid="ListItem"]:nth-child(2) > .mui-1a3582[data-testid="ordersAndReturns"][aria-label="Orders & Returns"] > .mui-zv7ete.MuiTypography-bodyCopy[data-testid="Text_OrdersAndReturns"]
<div class="MuiTypography-root MuiTypography-bodyCopy mui-zv7ete" aria-hidden="true" data-testid="Text_OrdersAndReturns">Orders & Returns</div>
.mui-nyp9hh > .mui-1jc6clx.MuiBox-root > .mui-hmf69j.MuiBox-root > nav[aria-label="Your Information"][data-testid="LinkList"] > .mui-1chcc0f[data-testid="List"][role="list"] > li[data-testid="ListItem"]:nth-child(3) > .mui-1kvgxbm[data-testid="cart-link"][href$="CheckoutCartView"] > .mui-1gtanqs.MuiBox-root > .mui-s2jwjx[width="24"][height="24"]
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" width="24" height="24" role="presentation" focusable="false" aria-hidden="true" fill="none" class="mui-s2jwjx">
.mui-nyp9hh > .mui-1jc6clx.MuiBox-root > .mui-hmf69j.MuiBox-root > nav[aria-label="Your Information"][data-testid="LinkList"] > .mui-1chcc0f[data-testid="List"][role="list"] > li[data-testid="ListItem"]:nth-child(3) > .mui-1kvgxbm[data-testid="cart-link"][href$="CheckoutCartView"] > .mui-pemvpl.MuiTypography-bodyCopy[data-testid="Text"]
<div class="MuiTypography-root MuiTypography-bodyCopy mui-pemvpl" aria-hidden="true" data-testid="Text">Cart</div>
.mui-nyp9hh > .mui-1yj6zev.MuiBox-root > .mui-hmf69j.MuiBox-root > nav[aria-label="Shopping Tools"][data-testid="LinkList"] > .mui-1chcc0f[data-testid="List"][role="list"] > li[data-testid="ListItem"]:nth-child(1) > .mui-0.MuiBox-root[data-testid="findawarehouse-textwithicon"] > .MuiLink-underlineAlways.mui-1d6k37l[href$="locations"] > .mui-1prr2g3[width="24"][height="24"]
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" width="24" height="24" role="presentation" focusable="false" aria-hidden="true" fill="none" class="mui-1prr2g3">
#Button_icon-links-member-links-mobile-signin-mobile > .mui-19u4yy7[width="24"][height="24"]
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" width="24" height="24" role="presentation" focusable="false" aria-hidden="true" fill="none" class="MuiBox-root mui-19u4yy7">
.mui-nyp9hh > .mui-1yj6zev.MuiBox-root > .mui-hmf69j.MuiBox-root > nav[aria-label="Shopping Tools"][data-testid="LinkList"] > .mui-1chcc0f[data-testid="List"][role="list"] > li[data-testid="ListItem"]:nth-child(3) > .mui-1kvgxbm[data-testid="cart-link"][href$="CheckoutCartView"] > .mui-1gtanqs.MuiBox-root > .mui-s2jwjx[width="24"][height="24"]
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" width="24" height="24" role="presentation" focusable="false" aria-hidden="true" fill="none" class="mui-s2jwjx">
.mui-nyp9hh > .mui-1yj6zev.MuiBox-root > .mui-hmf69j.MuiBox-root > nav[aria-label="Shopping Tools"][data-testid="LinkList"] > .mui-1chcc0f[data-testid="List"][role="list"] > li[data-testid="ListItem"]:nth-child(3) > .mui-1kvgxbm[data-testid="cart-link"][href$="CheckoutCartView"] > .mui-pemvpl.MuiTypography-bodyCopy[data-testid="Text"]
<div class="MuiTypography-root MuiTypography-bodyCopy mui-pemvpl" aria-hidden="true" data-testid="Text">Cart</div>
Showing first 10 of 165 audited elements.
ARIA role should be appropriate for the element152 elements
Invalid ARIA role and HTML element combinations can break accessibility for entire sections of your application. When roles are used incorrectly, assistive technologies may report confusing or nonsensical information to users, making it impossible for them to understand and interact with the interface properly.
Audit Elements
.mui-1yu9n49 > .mui-1mlnd8c[data-testid="List"][role="list"]
<ul role="list" data-testid="List" class="mui-1mlnd8c">
li[data-testid="ListItem"]:nth-child(8) > .mui-12kqaof.MuiButton-text-button[data-testid="Button"] > .mui-q5zhp5[width="24"][height="24"]
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" width="24" height="24" role="presentation" focusable="false" aria-hidden="true" fill="none" class="mui-q5zhp5">
.mui-1bdxh6u > .mui-1mlnd8c[data-testid="List"][role="list"]
<ul role="list" data-testid="List" class="mui-1mlnd8c">
li[data-testid="ListItem"]:nth-child(5) > .mui-12kqaof.MuiButton-text-button[data-testid="Button"] > .mui-q5zhp5[width="24"][height="24"]
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" width="24" height="24" role="presentation" focusable="false" aria-hidden="true" fill="none" class="mui-q5zhp5">
.mui-nyp9hh > .mui-1jc6clx.MuiBox-root > .mui-hmf69j.MuiBox-root > nav[aria-label="Your Information"][data-testid="LinkList"] > .mui-1chcc0f[data-testid="List"][role="list"]
<ul role="list" data-testid="List" class="mui-1chcc0f">
#Button_icon-links-member-links-desktop-signin-mobile > .mui-19u4yy7[width="24"][height="24"]
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" width="24" height="24" role="presentation" focusable="false" aria-hidden="true" fill="none" class="MuiBox-root mui-19u4yy7">
.mui-nyp9hh > .mui-1jc6clx.MuiBox-root > .mui-hmf69j.MuiBox-root > nav[aria-label="Your Information"][data-testid="LinkList"] > .mui-1chcc0f[data-testid="List"][role="list"] > li[data-testid="ListItem"]:nth-child(3) > .mui-1kvgxbm[data-testid="cart-link"][href$="CheckoutCartView"] > .mui-1gtanqs.MuiBox-root > .mui-s2jwjx[width="24"][height="24"]
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" width="24" height="24" role="presentation" focusable="false" aria-hidden="true" fill="none" class="mui-s2jwjx">
.mui-nyp9hh > .mui-1yj6zev.MuiBox-root > .mui-hmf69j.MuiBox-root > nav[aria-label="Shopping Tools"][data-testid="LinkList"] > .mui-1chcc0f[data-testid="List"][role="list"]
<ul role="list" data-testid="List" class="mui-1chcc0f">
.mui-nyp9hh > .mui-1yj6zev.MuiBox-root > .mui-hmf69j.MuiBox-root > nav[aria-label="Shopping Tools"][data-testid="LinkList"] > .mui-1chcc0f[data-testid="List"][role="list"] > li[data-testid="ListItem"]:nth-child(1) > .mui-0.MuiBox-root[data-testid="findawarehouse-textwithicon"] > .MuiLink-underlineAlways.mui-1d6k37l[href$="locations"] > .mui-1prr2g3[width="24"][height="24"]
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" width="24" height="24" role="presentation" focusable="false" aria-hidden="true" fill="none" class="mui-1prr2g3">
#Button_icon-links-member-links-mobile-signin-mobile > .mui-19u4yy7[width="24"][height="24"]
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" width="24" height="24" role="presentation" focusable="false" aria-hidden="true" fill="none" class="MuiBox-root mui-19u4yy7">
Showing first 10 of 152 audited elements.
ARIA roles used must conform to valid values16 elements
Invalid ARIA role values prevent assistive technologies from understanding and communicating the element's purpose to users. Without valid roles, screen readers cannot provide information about the element's features, properties, or how users should interact with it.
Audit Elements
.mui-1yu9n49 > .mui-1mlnd8c[data-testid="List"][role="list"]
<ul role="list" data-testid="List" class="mui-1mlnd8c">
#\:r22\:
<input aria-invalid="false" aria-describedby="typeahead-search-fie..." autocomplete="off" id=":r22:" placeholder="Search Costco" class="MuiInputBase-input M..." aria-autocomplete="both" aria-controls="suggestions-list" aria-expanded="false" autocapitalize="none" spellcheck="false" type="text" ...>
.mui-1n18vzz > .mui-1jc6clx.MuiBox-root > .mui-hmf69j.MuiBox-root > nav[aria-label="Your Information"][data-testid="LinkList"] > .mui-1chcc0f[data-testid="List"][role="list"]
<ul role="list" data-testid="List" class="mui-1chcc0f">
.mui-jyh1ez
<ul role="list" data-testid="List" class="mui-jyh1ez">
.mui-q5ef8c.MuiBox-root:nth-child(1) > .mui-1g5d1bo.MuiBox-root > .mui-1pniqjm.MuiBox-root[data-layout="one_fourth"] > .mui-etn0gy.MuiBox-root > .mui-1kxonj9[data-testid="Carousel"][aria-roledescription="carousel"]
<div class="MuiBox-root mui-1kxonj9" aria-label="Featured promos and announcements slideshow" aria-roledescription="carousel" data-testid="Carousel" role="region">
.mui-6btrbk > .mui-1kxonj9[data-testid="Carousel"][aria-roledescription="carousel"]
<div class="MuiBox-root mui-1kxonj9" aria-label="Featured promos and announcements slideshow" aria-roledescription="carousel" data-testid="Carousel" role="region">
.mui-q5ef8c.MuiBox-root:nth-child(5) > .mui-1g5d1bo.MuiBox-root > .mui-1pniqjm.MuiBox-root[data-layout="one_fourth"] > .mui-etn0gy.MuiBox-root > .mui-1kxonj9[data-testid="Carousel"][aria-roledescription="carousel"]
<div class="MuiBox-root mui-1kxonj9" aria-label="Featured promos and announcements slideshow" aria-roledescription="carousel" data-testid="Carousel" role="region">
.mui-phxlkw
<div class="MuiBox-root mui-phxlkw" aria-label="Featured promos and announcements slideshow" aria-roledescription="carousel" data-testid="Carousel_adset-thirdparty" role="region">
div:nth-child(1) > .mui-hmf69j.MuiBox-root > .mui-0.MuiBox-root > .mui-6xljbq[data-testid="List"][role="list"]
<ul role="list" data-testid="List" class="mui-6xljbq">
div:nth-child(2) > .mui-hmf69j.MuiBox-root:nth-child(1) > .mui-0.MuiBox-root > .mui-6xljbq[data-testid="List"][role="list"]
<ul role="list" data-testid="List" class="mui-6xljbq">
Showing first 10 of 16 audited elements.
aria-hidden="true" must not be present on the document body1 element
Setting <body aria-hidden="true" hides all page content from assistive technologies while leaving it visible on screen. This creates a confusing experience where keyboard users can still tab to elements, but screen readers remain completely silent, providing no information about what's focused.
Audit Elements
body
<body>
autocomplete attribute must be used correctly2 elements
Missing or incorrect autocomplete values make forms inaccessible to screen reader users. Screen readers cannot provide adequate information about form fields without proper autocomplete attributes, preventing users from understanding what information is required and how to complete forms correctly.
Audit Elements
#\:r22\:
<input aria-invalid="false" aria-describedby="typeahead-search-fie..." autocomplete="off" id=":r22:" placeholder="Search Costco" class="MuiInputBase-input M..." aria-autocomplete="both" aria-controls="suggestions-list" aria-expanded="false" autocapitalize="none" spellcheck="false" type="text" ...>
#find-a-warehouse-popover-search-field-compact_find-a-warehouse-popover-search-field-compact-\:r5v\:
<input aria-invalid="false" autocomplete="postal-code" id="find-a-warehouse-pop..." required="" aria-labelledby="find-a-warehouse-lab..." aria-required="true" data-testid="input--find-a-wareho..." class="MuiInputBase-input M..." type="text" value="">
Banner landmark should not be contained in another landmark1 element
Banner landmarks must be top-level to effectively designate the header portion of the page. Nested banner landmarks fail to provide the structural information screen reader users need to navigate efficiently through the page layout.
Audit Elements
header
<header class="MuiBox-root mui-i9gxme">
Buttons must have discernible text38 elements
Screen reader users cannot determine the purpose of buttons without an accessible name. Without a name, users don't know what action the button will perform when activated.
Audit Elements
li[data-testid="ListItem"]:nth-child(8) > .mui-12kqaof.MuiButton-text-button[data-testid="Button"]
<button class="MuiButtonBase-root M..." tabindex="0" type="button" id="Button_button-defaul..." data-testid="Button" aria-label="US, Country/Region U..." aria-expanded="false">
.MuiButton-tertiary
<button class="MuiButtonBase-root M..." tabindex="0" type="button" id="Button_button-defaul..." data-testid="SearchButton" aria-label="Search">
#Button_search-strip-member-links-desktop-signin-desktop
<button class="MuiButtonBase-root M..." tabindex="0" type="button" id="Button_search-strip-..." data-testid="Button_search-strip-...">
li[data-testid="ListItem"]:nth-child(1) > .mui-rcml7p.MuiBox-root[data-testid="ShopMenu"] > .mui-94co09.MuiButton-primary[data-testid="Button_shop-menu-button"]
<button class="MuiButtonBase-root M..." tabindex="0" type="button" id="Button_shop-menu-but..." data-testid="Button_shop-menu-but..." aria-expanded="false">
.mui-16v5rsm[aria-label="Grocery"][data-testid="Button"]
<button class="MuiButtonBase-root M..." tabindex="0" type="button" id="Button_button-defaul..." data-testid="Button" aria-label="Grocery" aria-expanded="false">
.mui-16v5rsm[aria-label="Same Day"][data-testid="Button"]
<button class="MuiButtonBase-root M..." tabindex="0" type="button" id="Button_button-defaul..." data-testid="Button" aria-label="Same Day" aria-expanded="false">
.mui-16v5rsm[aria-label="Savings"][data-testid="Button"]
<button class="MuiButtonBase-root M..." tabindex="0" type="button" id="Button_button-defaul..." data-testid="Button" aria-label="Savings" aria-expanded="false">
.mui-16v5rsm[aria-label="Business Delivery"][data-testid="Button"]
<button class="MuiButtonBase-root M..." tabindex="0" type="button" id="Button_button-defaul..." data-testid="Button" aria-label="Business Delivery" aria-expanded="false">
.mui-16v5rsm[aria-label="Optical"][data-testid="Button"]
<button class="MuiButtonBase-root M..." tabindex="0" type="button" id="Button_button-defaul..." data-testid="Button" aria-label="Optical" aria-expanded="false">
.mui-16v5rsm[aria-label="Pharmacy"][data-testid="Button"]
<button class="MuiButtonBase-root M..." tabindex="0" type="button" id="Button_button-defaul..." data-testid="Button" aria-label="Pharmacy" aria-expanded="false">
Showing first 10 of 38 audited elements.
Certain ARIA roles must contain particular children10 elements
ARIA roles missing required child elements cannot perform their intended accessibility functions. Children provide essential context, like how a treeitem relates to its parent container and siblings. Without proper children, assistive technologies cannot convey this structural information to users.
Audit Elements
.mui-1yu9n49 > .mui-1mlnd8c[data-testid="List"][role="list"]
<ul role="list" data-testid="List" class="mui-1mlnd8c">
.mui-1n18vzz > .mui-1jc6clx.MuiBox-root > .mui-hmf69j.MuiBox-root > nav[aria-label="Your Information"][data-testid="LinkList"] > .mui-1chcc0f[data-testid="List"][role="list"]
<ul role="list" data-testid="List" class="mui-1chcc0f">
.mui-jyh1ez
<ul role="list" data-testid="List" class="mui-jyh1ez">
div:nth-child(1) > .mui-hmf69j.MuiBox-root > .mui-0.MuiBox-root > .mui-6xljbq[data-testid="List"][role="list"]
<ul role="list" data-testid="List" class="mui-6xljbq">
div:nth-child(2) > .mui-hmf69j.MuiBox-root:nth-child(1) > .mui-0.MuiBox-root > .mui-6xljbq[data-testid="List"][role="list"]
<ul role="list" data-testid="List" class="mui-6xljbq">
.mui-hmf69j.MuiBox-root:nth-child(2) > .mui-0.MuiBox-root > .mui-6xljbq[data-testid="List"][role="list"]
<ul role="list" data-testid="List" class="mui-6xljbq">
div:nth-child(3) > .mui-hmf69j.MuiBox-root > .mui-0.MuiBox-root > .mui-6xljbq[data-testid="List"][role="list"]
<ul role="list" data-testid="List" class="mui-6xljbq">
div:nth-child(4) > .mui-hmf69j.MuiBox-root > .mui-0.MuiBox-root > .mui-6xljbq[data-testid="List"][role="list"]
<ul role="list" data-testid="List" class="mui-6xljbq">
.mui-wdz2hg
<ul role="list" data-testid="List" class="mui-wdz2hg">
.mui-17bhf07
<ul role="list" data-testid="List" class="mui-17bhf07">
Contentinfo landmark should not be contained in another landmark1 element
The contentinfo landmark must be at the top level to help screen reader users quickly navigate to footer information. When nested inside another landmark, it becomes harder to find, defeating its purpose of providing quick access to content information.
Audit Elements
footer
<footer class="MuiBox-root mui-d73lw9">
Deprecated ARIA roles must not be used16 elements
Deprecated ARIA roles are not recognized by modern screen readers and assistive technologies. Using outdated roles means some users cannot access essential information or functionality on your site.
Audit Elements
.mui-1yu9n49 > .mui-1mlnd8c[data-testid="List"][role="list"]
<ul role="list" data-testid="List" class="mui-1mlnd8c">
#\:r22\:
<input aria-invalid="false" aria-describedby="typeahead-search-fie..." autocomplete="off" id=":r22:" placeholder="Search Costco" class="MuiInputBase-input M..." aria-autocomplete="both" aria-controls="suggestions-list" aria-expanded="false" autocapitalize="none" spellcheck="false" type="text" ...>
.mui-1n18vzz > .mui-1jc6clx.MuiBox-root > .mui-hmf69j.MuiBox-root > nav[aria-label="Your Information"][data-testid="LinkList"] > .mui-1chcc0f[data-testid="List"][role="list"]
<ul role="list" data-testid="List" class="mui-1chcc0f">
.mui-jyh1ez
<ul role="list" data-testid="List" class="mui-jyh1ez">
.mui-q5ef8c.MuiBox-root:nth-child(1) > .mui-1g5d1bo.MuiBox-root > .mui-1pniqjm.MuiBox-root[data-layout="one_fourth"] > .mui-etn0gy.MuiBox-root > .mui-1kxonj9[data-testid="Carousel"][aria-roledescription="carousel"]
<div class="MuiBox-root mui-1kxonj9" aria-label="Featured promos and announcements slideshow" aria-roledescription="carousel" data-testid="Carousel" role="region">
.mui-6btrbk > .mui-1kxonj9[data-testid="Carousel"][aria-roledescription="carousel"]
<div class="MuiBox-root mui-1kxonj9" aria-label="Featured promos and announcements slideshow" aria-roledescription="carousel" data-testid="Carousel" role="region">
.mui-q5ef8c.MuiBox-root:nth-child(5) > .mui-1g5d1bo.MuiBox-root > .mui-1pniqjm.MuiBox-root[data-layout="one_fourth"] > .mui-etn0gy.MuiBox-root > .mui-1kxonj9[data-testid="Carousel"][aria-roledescription="carousel"]
<div class="MuiBox-root mui-1kxonj9" aria-label="Featured promos and announcements slideshow" aria-roledescription="carousel" data-testid="Carousel" role="region">
.mui-phxlkw
<div class="MuiBox-root mui-phxlkw" aria-label="Featured promos and announcements slideshow" aria-roledescription="carousel" data-testid="Carousel_adset-thirdparty" role="region">
div:nth-child(1) > .mui-hmf69j.MuiBox-root > .mui-0.MuiBox-root > .mui-6xljbq[data-testid="List"][role="list"]
<ul role="list" data-testid="List" class="mui-6xljbq">
div:nth-child(2) > .mui-hmf69j.MuiBox-root:nth-child(1) > .mui-0.MuiBox-root > .mui-6xljbq[data-testid="List"][role="list"]
<ul role="list" data-testid="List" class="mui-6xljbq">
Showing first 10 of 16 audited elements.
Document should have one main landmark1 element
Every page should have exactly one main landmark that identifies the primary content. Without a main landmark, screen reader users must navigate through all content linearly to find what they're looking for, making page navigation difficult and time-consuming.
Audit Elements
html
<html lang="en-us">
Document should not have more than one banner landmark1 element
Multiple banner landmarks force screen reader users to sort through duplicate options to find header information. Each page should have only one banner landmark to enable quick, predictable navigation to the header without overwhelming users with unnecessary choices.
Audit Elements
header
<header class="MuiBox-root mui-i9gxme">
Document should not have more than one contentinfo landmark1 element
Multiple contentinfo landmarks force screen reader users to sort through extra options to find footer information. Each page should have only one content info landmark to enable quick, predictable navigation without overwhelming users with duplicate structural markers.
Audit Elements
footer
<footer class="MuiBox-root mui-d73lw9">
Document should not have more than one main landmark1 element
Multiple main landmarks confuse screen reader users about where the primary content is located. Each page should have only one main landmark so users can quickly and predictably navigate to the primary content area.
Audit Elements
main
<main style="display:flex;flex-direction:column;gap:24px;margin:auto;max-width:1432px;padding:16px">
Documents must have <title> element to aid in navigation1 element
The page title is the first thing screen reader users hear when loading a page. Without a descriptive, unique title, users must read through the entire page to understand its contents and purpose, wasting valuable time on every page visit.
Audit Elements
html
<html lang="en-us">
Elements marked as presentational should be consistently ignored16 elements
Elements with role="none" or role="presentation" should be removed from the accessibility tree. Adding global ARIA attributes or making these elements focusable prevents their removal, leaving them accessible to screen readers when they should be ignored, creating unexpected and confusing behavior.
Audit Elements
a[aria-label=" While Supplies Last"] > .mui-1c1kq07.MuiBox-root > img[alt=""][loading="lazy"]
<img alt="" loading="lazy">
a[data-testid="Link_Online-Only"] > .mui-1c1kq07.MuiBox-root > img[alt=""][loading="lazy"]
<img alt="" loading="lazy">
a[data-testid="Link_Treasure Hunt"] > .mui-1c1kq07.MuiBox-root > img[alt=""][loading="lazy"]
<img alt="" loading="lazy">
a[aria-label=" What's New"] > .mui-1c1kq07.MuiBox-root > img[alt=""][loading="lazy"]
<img alt="" loading="lazy">
a[data-testid="Link_Member Favorites"] > .mui-1c1kq07.MuiBox-root > img[alt=""][loading="lazy"]
<img alt="" loading="lazy">
a[data-testid="Link_Recommendations for You"] > .mui-1c1kq07.MuiBox-root > img[alt=""][loading="lazy"]
<img alt="" loading="lazy">
a[aria-label=" Customer Service"] > .mui-1c1kq07.MuiBox-root > img[alt=""][loading="lazy"]
<img alt="" loading="lazy">
.mui-1rv5p9c
<img class="MuiBox-root mui-1rv5..." alt="" loading="eager" sizes="(max-width: 768px) 3..." src="https://cdn.bfldr.co..." srcset="https://cdn.bfldr.co..." data-testid="media-asset" imagesx="[object Object]" mobileimagealttext="" mobileimagesx="[object Object]">
img[data-airgap-id="5"]
<img alt="" loading="lazy" src="https://bfasset.costco-static.com/56O3HXZ9/at/8p5j52j64s77zqvhggqbzg/customer-service-blue.svg?auto=webp&format=jpg" height="24" width="24" data-airgap-id="5">
a[data-testid="Link_Site Map"] > .mui-1c1kq07.MuiBox-root > img[alt=""][loading="lazy"]
<img alt="" loading="lazy">
Showing first 10 of 16 audited elements.
Elements must meet minimum color contrast ratio thresholds107 elements
People with low vision or color blindness cannot read text that lacks sufficient contrast with its background. With nearly three times more people having low vision than total blindness, and 8% of men and 0.4% of women having color deficiencies, adequate contrast is essential for making text readable to millions of users.
Audit Elements
.mui-1bx1pg2 > span
<span>Buyer's Picks and Spring Favorites, Shop Now!</span>
.mui-1c1kq07.MuiBox-root > .mui-188ak2.MuiTypography-bodyCopy[data-testid="Text_While Supplies Last"]
<div class="MuiTypography-root MuiTypography-bodyCopy mui-188ak2" data-testid="Text_While Supplies Last">While Supplies Last</div>
div[data-testid="Text_Online-Only"]
<div class="MuiTypography-root MuiTypography-bodyCopy mui-188ak2" data-testid="Text_Online-Only">Online-Only</div>
div[data-testid="Text_Treasure Hunt"]
<div class="MuiTypography-root MuiTypography-bodyCopy mui-188ak2" data-testid="Text_Treasure Hunt">Treasure Hunt</div>
.mui-1c1kq07.MuiBox-root > .mui-188ak2.MuiTypography-bodyCopy[data-testid="Text_What's New"]
<div class="MuiTypography-root MuiTypography-bodyCopy mui-188ak2" data-testid="Text_What's New">What's New</div>
div[data-testid="Text_Member Favorites"]
<div class="MuiTypography-root MuiTypography-bodyCopy mui-188ak2" data-testid="Text_Member Favorites">Member Favorites</div>
div[data-testid="Text_Recommendations for You"]
<div class="MuiTypography-root MuiTypography-bodyCopy mui-188ak2" data-testid="Text_Recommendations for You">Recommendations for You</div>
.mui-1c1kq07.MuiBox-root > .mui-188ak2.MuiTypography-bodyCopy[data-testid="Text_Customer Service"]
<div class="MuiTypography-root MuiTypography-bodyCopy mui-188ak2" data-testid="Text_Customer Service">Customer Service</div>
li[data-testid="ListItem"]:nth-child(8) > .mui-12kqaof.MuiButton-text-button[data-testid="Button"]
<button class="MuiButtonBase-root M..." tabindex="0" type="button" id="Button_button-defaul..." data-testid="Button" aria-label="US, Country/Region U..." aria-expanded="false">
#Button_search-strip-member-links-desktop-signin-desktop > .mui-3jwhz1.MuiTypography-bodyCopy.MuiTypography-root
<div class="MuiTypography-root MuiTypography-bodyCopy mui-3jwhz1" data-testid="Text_search-strip-member-links-desktop-signin-desktop">Sign In / Register</div>
Showing first 10 of 107 audited elements.
Elements must only use permitted ARIA attributes124 elements
Using prohibited ARIA attributes prevents important information from reaching assistive technology users. It also causes assistive technologies to behave inconsistently as they attempt to compensate for the error.
Audit Elements
.mui-1yu9n49
<nav class="MuiBox-root mui-1yu9n49" aria-label="Savings and locations" data-testid="LinkList">
a[aria-label=" While Supplies Last"]
<a class="MuiTypography-root MuiTypography-inherit MuiLink-root MuiLink-underlineHover mui-5msltf" data-testid="Link_While Supplies Last" href="https://www.costco.com/s?keyword=whilesupplieslast&COSTID=WSL_Homepage" aria-label=" While Supplies Last" target="_self">
a[data-testid="Link_Online-Only"]
<a class="MuiTypography-root MuiTypography-inherit MuiLink-root MuiLink-underlineHover mui-5msltf" data-testid="Link_Online-Only" href="/s?keyword=online%20only%20&COSTID=online_savings_header" aria-label=" Online-Only" target="_self">
a[data-testid="Link_Treasure Hunt"]
<a class="MuiTypography-root MuiTypography-inherit MuiLink-root MuiLink-underlineHover mui-5msltf" data-testid="Link_Treasure Hunt" href="/s?keyword=treasurehunt&COSTID=TH_header" aria-label=" Treasure Hunt" target="_self">
a[aria-label=" What's New"]
<a class="MuiTypography-root MuiTypography-inherit MuiLink-root MuiLink-underlineHover mui-5msltf" data-testid="Link_What's New" href="https://www.costco.com/s?keyword=new&COSTID=WN_header" aria-label=" What's New" target="_self">
a[data-testid="Link_Member Favorites"]
<a class="MuiTypography-root MuiTypography-inherit MuiLink-root MuiLink-underlineHover mui-5msltf" data-testid="Link_Member Favorites" href="/s?dept=All&keyword=MemberFavorites&COSTID=WN_header" aria-label=" Member Favorites" target="_self">
a[data-testid="Link_Recommendations for You"]
<a class="MuiTypography-root MuiTypography-inherit MuiLink-root MuiLink-underlineHover mui-5msltf" data-testid="Link_Recommendations for You" href="https://www.costco.com/recommendations.html" aria-label=" Recommendations for You" target="_self">
a[aria-label=" Customer Service"]
<a class="MuiTypography-root MuiTypography-inherit MuiLink-root MuiLink-underlineHover mui-5msltf" data-testid="Link_Customer Service" href="https://customerservice.costco.com/" aria-label=" Customer Service" target="_self">
li[data-testid="ListItem"]:nth-child(8) > .mui-12kqaof.MuiButton-text-button[data-testid="Button"]
<button class="MuiButtonBase-root M..." tabindex="0" type="button" id="Button_button-defaul..." data-testid="Button" aria-label="US, Country/Region U..." aria-expanded="false">
#\:r22\:
<input aria-invalid="false" aria-describedby="typeahead-search-fie..." autocomplete="off" id=":r22:" placeholder="Search Costco" class="MuiInputBase-input M..." aria-autocomplete="both" aria-controls="suggestions-list" aria-expanded="false" autocapitalize="none" spellcheck="false" type="text" ...>
Showing first 10 of 124 audited elements.
Elements must only use supported ARIA attributes124 elements
Using ARIA attributes in roles where they're not allowed can disable accessibility for entire sections of your application. Invalid attribute-role combinations create conflicts that cause assistive technologies to report incorrect or nonsensical information about your interface.
Audit Elements
.mui-1yu9n49
<nav class="MuiBox-root mui-1yu9n49" aria-label="Savings and locations" data-testid="LinkList">
a[aria-label=" While Supplies Last"]
<a class="MuiTypography-root MuiTypography-inherit MuiLink-root MuiLink-underlineHover mui-5msltf" data-testid="Link_While Supplies Last" href="https://www.costco.com/s?keyword=whilesupplieslast&COSTID=WSL_Homepage" aria-label=" While Supplies Last" target="_self">
a[data-testid="Link_Online-Only"]
<a class="MuiTypography-root MuiTypography-inherit MuiLink-root MuiLink-underlineHover mui-5msltf" data-testid="Link_Online-Only" href="/s?keyword=online%20only%20&COSTID=online_savings_header" aria-label=" Online-Only" target="_self">
a[data-testid="Link_Treasure Hunt"]
<a class="MuiTypography-root MuiTypography-inherit MuiLink-root MuiLink-underlineHover mui-5msltf" data-testid="Link_Treasure Hunt" href="/s?keyword=treasurehunt&COSTID=TH_header" aria-label=" Treasure Hunt" target="_self">
a[aria-label=" What's New"]
<a class="MuiTypography-root MuiTypography-inherit MuiLink-root MuiLink-underlineHover mui-5msltf" data-testid="Link_What's New" href="https://www.costco.com/s?keyword=new&COSTID=WN_header" aria-label=" What's New" target="_self">
a[data-testid="Link_Member Favorites"]
<a class="MuiTypography-root MuiTypography-inherit MuiLink-root MuiLink-underlineHover mui-5msltf" data-testid="Link_Member Favorites" href="/s?dept=All&keyword=MemberFavorites&COSTID=WN_header" aria-label=" Member Favorites" target="_self">
a[data-testid="Link_Recommendations for You"]
<a class="MuiTypography-root MuiTypography-inherit MuiLink-root MuiLink-underlineHover mui-5msltf" data-testid="Link_Recommendations for You" href="https://www.costco.com/recommendations.html" aria-label=" Recommendations for You" target="_self">
a[aria-label=" Customer Service"]
<a class="MuiTypography-root MuiTypography-inherit MuiLink-root MuiLink-underlineHover mui-5msltf" data-testid="Link_Customer Service" href="https://customerservice.costco.com/" aria-label=" Customer Service" target="_self">
li[data-testid="ListItem"]:nth-child(8) > .mui-12kqaof.MuiButton-text-button[data-testid="Button"]
<button class="MuiButtonBase-root M..." tabindex="0" type="button" id="Button_button-defaul..." data-testid="Button" aria-label="US, Country/Region U..." aria-expanded="false">
#\:r22\:
<input aria-invalid="false" aria-describedby="typeahead-search-fie..." autocomplete="off" id=":r22:" placeholder="Search Costco" class="MuiInputBase-input M..." aria-autocomplete="both" aria-controls="suggestions-list" aria-expanded="false" autocapitalize="none" spellcheck="false" type="text" ...>
Showing first 10 of 124 audited elements.
Elements should not have tabindex greater than zero49 elements
Using tabindex values greater than 0 creates unexpected tab orders that disorient users. It makes elements appear to be skipped when users tab past them, requires setting tabindex on every element to maintain order, and forces all tabindex items to be visited before any normal elements, breaking natural navigation flow.
Audit Elements
li[data-testid="ListItem"]:nth-child(8) > .mui-12kqaof.MuiButton-text-button[data-testid="Button"]
<button class="MuiButtonBase-root M..." tabindex="0" type="button" id="Button_button-defaul..." data-testid="Button" aria-label="US, Country/Region U..." aria-expanded="false">
.MuiButton-tertiary
<button class="MuiButtonBase-root M..." tabindex="0" type="button" id="Button_button-defaul..." data-testid="SearchButton" aria-label="Search">
#Button_search-strip-member-links-desktop-signin-desktop
<button class="MuiButtonBase-root M..." tabindex="0" type="button" id="Button_search-strip-..." data-testid="Button_search-strip-...">
.mui-1n18vzz > .mui-1jc6clx.MuiBox-root > .mui-hmf69j.MuiBox-root > nav[aria-label="Your Information"][data-testid="LinkList"] > .mui-1chcc0f[data-testid="List"][role="list"] > li[data-testid="ListItem"]:nth-child(2) > .mui-1a3582[data-testid="ordersAndReturns"][aria-label="Orders & Returns"]
<a class="MuiButtonBase-root M..." tabindex="0" id="Button_OrdersAndRetu..." data-testid="ordersAndReturns" href="/myaccount/#/app/490..." target="_self" aria-label="Orders & Returns">
li[data-testid="ListItem"]:nth-child(1) > .mui-rcml7p.MuiBox-root[data-testid="ShopMenu"] > .mui-94co09.MuiButton-primary[data-testid="Button_shop-menu-button"]
<button class="MuiButtonBase-root M..." tabindex="0" type="button" id="Button_shop-menu-but..." data-testid="Button_shop-menu-but..." aria-expanded="false">
.mui-1euivev.MuiBox-root > a[href$="grocery-household.html"]
<a class="MuiButtonBase-root M..." tabindex="0" id="Button_button-defaul..." data-testid="Button" href="/grocery-household.h..." target="_self" aria-label="Grocery">
.mui-16v5rsm[aria-label="Grocery"][data-testid="Button"]
<button class="MuiButtonBase-root M..." tabindex="0" type="button" id="Button_button-defaul..." data-testid="Button" aria-label="Grocery" aria-expanded="false">
.mui-1a3582[aria-label="Same Day"][data-testid="Button"]
<a class="MuiButtonBase-root M..." tabindex="0" id="Button_button-defaul..." data-testid="Button" href="https://sameday.cost..." aria-label="Same Day">
.mui-16v5rsm[aria-label="Same Day"][data-testid="Button"]
<button class="MuiButtonBase-root M..." tabindex="0" type="button" id="Button_button-defaul..." data-testid="Button" aria-label="Same Day" aria-expanded="false">
a[href="/s?keyword=OFF&dept=All"]
<a class="MuiButtonBase-root M..." tabindex="0" id="Button_button-defaul..." data-testid="Button" href="/s?keyword=OFF&dept=..." target="_self" aria-label="Savings">
Showing first 10 of 49 audited elements.
Form elements must have labels2 elements
Form labels are essential for screen reader users to understand what information each field requires. Without proper labels, screen readers cannot identify input expectations, fields don't receive focus when announced, and users with motor impairments lose the benefit of larger clickable areas that labels provide.
Audit Elements
#\:r22\:
<input aria-invalid="false" aria-describedby="typeahead-search-fie..." autocomplete="off" id=":r22:" placeholder="Search Costco" class="MuiInputBase-input M..." aria-autocomplete="both" aria-controls="suggestions-list" aria-expanded="false" autocapitalize="none" spellcheck="false" type="text" ...>
#find-a-warehouse-popover-search-field-compact_find-a-warehouse-popover-search-field-compact-\:r5v\:
<input aria-invalid="false" autocomplete="postal-code" id="find-a-warehouse-pop..." required="" aria-labelledby="find-a-warehouse-lab..." aria-required="true" data-testid="input--find-a-wareho..." class="MuiInputBase-input M..." type="text" value="">
Form elements should have a visible label2 elements
The title and aria-describedby attributes provide supplementary hints, not labels. Screen readers treat these as advisory information rather than true labels, which prevents them from properly conveying the form element's purpose. Form fields need proper labels that can be programmatically determined.
Audit Elements
#\:r22\:
<input aria-invalid="false" aria-describedby="typeahead-search-fie..." autocomplete="off" id=":r22:" placeholder="Search Costco" class="MuiInputBase-input M..." aria-autocomplete="both" aria-controls="suggestions-list" aria-expanded="false" autocapitalize="none" spellcheck="false" type="text" ...>
#find-a-warehouse-popover-search-field-compact_find-a-warehouse-popover-search-field-compact-\:r5v\:
<input aria-invalid="false" autocomplete="postal-code" id="find-a-warehouse-pop..." required="" aria-labelledby="find-a-warehouse-lab..." aria-required="true" data-testid="input--find-a-wareho..." class="MuiInputBase-input M..." type="text" value="">
Form field must not have multiple label elements2 elements
Multiple labels on the same form field cause inconsistent behavior across screen reader and browser combinations. Some will read the first label, others the last, and some will read both, creating confusion about what information the field requires.
Audit Elements
#\:r22\:
<input aria-invalid="false" aria-describedby="typeahead-search-fie..." autocomplete="off" id=":r22:" placeholder="Search Costco" class="MuiInputBase-input M..." aria-autocomplete="both" aria-controls="suggestions-list" aria-expanded="false" autocapitalize="none" spellcheck="false" type="text" ...>
#find-a-warehouse-popover-search-field-compact_find-a-warehouse-popover-search-field-compact-\:r5v\:
<input aria-invalid="false" autocomplete="postal-code" id="find-a-warehouse-pop..." required="" aria-labelledby="find-a-warehouse-lab..." aria-required="true" data-testid="input--find-a-wareho..." class="MuiInputBase-input M..." type="text" value="">
Heading levels should only increase by one9 elements
Headings convey page structure for screen reader users the same way text size does for sighted users. Properly ordered headings (h1 through h6) allow screen reader users to quickly navigate and understand content structure, saving significant time and frustration while also improving search engine optimization.
Audit Elements
h1
<h1 class="MuiBox-root mui-ty8jgw">Costco Homepage</h1>
#blt650c82e94ef58fd6 > .mui-ebhjg1.MuiBox-root > .mui-1vwgtf7.MuiLink-underlineNone[data-testid="Link"] > .mui-3hbjut.MuiBox-root > .mui-gn1jef.MuiBox-root > .mui-cykfnh
<h2 class="MuiBox-root mui-cykfnh" id="image-container">
#link-list-heading-blt7e4b77b11f605016
<h2 class="MuiTypography-root MuiTypography-t4 mui-1xpmdng" id="link-list-heading-blt7e4b77b11f605016" data-testid="Text">Customer Service</h2>
.mui-q5ef8c.MuiBox-root:nth-child(2) > form > .mui-1dmqsrm.MuiBox-root > .mui-8rxbt0.MuiTypography-t4[data-testid="Text_findawarehouse-title"]
<h2 class="MuiTypography-root MuiTypography-t4 mui-8rxbt0" id="findawarehouse-title" data-testid="Text_findawarehouse-title">Find a Warehouse</h2>
#link-list-heading-blt352c86f5239b4836
<h2 class="MuiTypography-root MuiTypography-t4 mui-1xpmdng" id="link-list-heading-blt352c86f5239b4836" data-testid="Text">About Us</h2>
#link-list-heading-blt9681117930db5ecd
<h2 class="MuiTypography-root MuiTypography-t4 mui-1xpmdng" id="link-list-heading-blt9681117930db5ecd" data-testid="Text">Membership</h2>
#link-list-heading-blt80ae06b6e84e5866
<h2 class="MuiTypography-root MuiTypography-t4 mui-1xpmdng" id="link-list-heading-blt80ae06b6e84e5866" data-testid="Text">Vendors & Suppliers</h2>
#link-list-heading-blt4d562a05e8ee3979
<h2 class="MuiTypography-root MuiTypography-t4 mui-1xpmdng" id="link-list-heading-blt4d562a05e8ee3979" data-testid="Text">Customer Service</h2>
#link-list-heading-bltb5f73ffca020c125
<h2 class="MuiTypography-root MuiTypography-t4 mui-1xpmdng" id="link-list-heading-bltb5f73ffca020c125" data-testid="Text">Locations & Services</h2>
Headings should not be empty9 elements
Screen readers announce headings to help users navigate page structure. Empty headings confuse users and prevent them from understanding the page's organization. Headings should only be used to convey structure, not for visual styling, and must contain accessible text that screen readers can announce.
Audit Elements
h1
<h1 class="MuiBox-root mui-ty8jgw">Costco Homepage</h1>
#blt650c82e94ef58fd6 > .mui-ebhjg1.MuiBox-root > .mui-1vwgtf7.MuiLink-underlineNone[data-testid="Link"] > .mui-3hbjut.MuiBox-root > .mui-gn1jef.MuiBox-root > .mui-cykfnh
<h2 class="MuiBox-root mui-cykfnh" id="image-container">
#link-list-heading-blt7e4b77b11f605016
<h2 class="MuiTypography-root MuiTypography-t4 mui-1xpmdng" id="link-list-heading-blt7e4b77b11f605016" data-testid="Text">Customer Service</h2>
.mui-q5ef8c.MuiBox-root:nth-child(2) > form > .mui-1dmqsrm.MuiBox-root > .mui-8rxbt0.MuiTypography-t4[data-testid="Text_findawarehouse-title"]
<h2 class="MuiTypography-root MuiTypography-t4 mui-8rxbt0" id="findawarehouse-title" data-testid="Text_findawarehouse-title">Find a Warehouse</h2>
#link-list-heading-blt352c86f5239b4836
<h2 class="MuiTypography-root MuiTypography-t4 mui-1xpmdng" id="link-list-heading-blt352c86f5239b4836" data-testid="Text">About Us</h2>
#link-list-heading-blt9681117930db5ecd
<h2 class="MuiTypography-root MuiTypography-t4 mui-1xpmdng" id="link-list-heading-blt9681117930db5ecd" data-testid="Text">Membership</h2>
#link-list-heading-blt80ae06b6e84e5866
<h2 class="MuiTypography-root MuiTypography-t4 mui-1xpmdng" id="link-list-heading-blt80ae06b6e84e5866" data-testid="Text">Vendors & Suppliers</h2>
#link-list-heading-blt4d562a05e8ee3979
<h2 class="MuiTypography-root MuiTypography-t4 mui-1xpmdng" id="link-list-heading-blt4d562a05e8ee3979" data-testid="Text">Customer Service</h2>
#link-list-heading-bltb5f73ffca020c125
<h2 class="MuiTypography-root MuiTypography-t4 mui-1xpmdng" id="link-list-heading-bltb5f73ffca020c125" data-testid="Text">Locations & Services</h2>
IDs used in ARIA and labels must be unique46 elements
Duplicate IDs break the accessibility of ARIA elements, form labels, and table headers. When IDs are duplicated, assistive technologies and scripts only reference the first instance, causing subsequent elements with the same ID to be ignored or incorrectly associated.
Audit Elements
#typeahead-search-field-description
<div class="MuiBox-root mui-ty8jgw" id="typeahead-search-field-description">Type and press the down arrow to browse search suggestions</div>
#\:r53\:
<span id=":r53:" style="border: 0px; clip: rect(0px, 0px, 0px, 0px); height: 1px; margin: -1px; overflow: hidden; padding: 0px; position: absolute; white-space: nowrap; width: 1px;">Loading</span>
#\:R1lamlacqlalal9jak3kaajt7pamkvfa\:
<span id=":R1lamlacqlalal9jak3kaajt7pamkvfa:" style="border: 0px; clip: rect(0px, 0px, 0px, 0px); height: 1px; margin: -1px; overflow: hidden; padding: 0px; position: absolute; white-space: nowrap; width: 1px;">Loading</span>
#\:Rqlamlacqlalal9jak3kaajt7pamkvfa\:
<span id=":Rqlamlacqlalal9jak3kaajt7pamkvfa:" style="border: 0px; clip: rect(0px, 0px, 0px, 0px); height: 1px; margin: -1px; overflow: hidden; padding: 0px; position: absolute; white-space: nowrap; width: 1px;">Loading</span>
#\:R1alamlacqlalal9jak3kaajt7pamkvfa\:
<span id=":R1alamlacqlalal9jak3kaajt7pamkvfa:" style="border: 0px; clip: rect(0px, 0px, 0px, 0px); height: 1px; margin: -1px; overflow: hidden; padding: 0px; position: absolute; white-space: nowrap; width: 1px;">Loading</span>
#\:R1qlamlacqlalal9jak3kaajt7pamkvfa\:
<span id=":R1qlamlacqlalal9jak3kaajt7pamkvfa:" style="border: 0px; clip: rect(0px, 0px, 0px, 0px); height: 1px; margin: -1px; overflow: hidden; padding: 0px; position: absolute; white-space: nowrap; width: 1px;">Loading</span>
#\:R3lamlacqlalal9jak3kaajt7pamkvfa\:
<span id=":R3lamlacqlalal9jak3kaajt7pamkvfa:" style="border: 0px; clip: rect(0px, 0px, 0px, 0px); height: 1px; margin: -1px; overflow: hidden; padding: 0px; position: absolute; white-space: nowrap; width: 1px;">Loading</span>
#\:r57\:
<span id=":r57:" style="border: 0px; clip: rect(0px, 0px, 0px, 0px); height: 1px; margin: -1px; overflow: hidden; padding: 0px; position: absolute; white-space: nowrap; width: 1px;">Loading</span>
#\:r58\:
<span id=":r58:" style="border: 0px; clip: rect(0px, 0px, 0px, 0px); height: 1px; margin: -1px; overflow: hidden; padding: 0px; position: absolute; white-space: nowrap; width: 1px;">Loading</span>
#\:r59\:
<span id=":r59:" style="border: 0px; clip: rect(0px, 0px, 0px, 0px); height: 1px; margin: -1px; overflow: hidden; padding: 0px; position: absolute; white-space: nowrap; width: 1px;">Loading</span>
Showing first 10 of 46 audited elements.
Images must have alternative text35 elements
Screen readers cannot translate images into text without alt attributes. Alternative text is essential for blind users and beneficial for users with low vision or color blindness, providing the same information that sighted users get from viewing the image.
Audit Elements
a[aria-label=" While Supplies Last"] > .mui-1c1kq07.MuiBox-root > img[alt=""][loading="lazy"]
<img alt="" loading="lazy">
a[data-testid="Link_Online-Only"] > .mui-1c1kq07.MuiBox-root > img[alt=""][loading="lazy"]
<img alt="" loading="lazy">
a[data-testid="Link_Treasure Hunt"] > .mui-1c1kq07.MuiBox-root > img[alt=""][loading="lazy"]
<img alt="" loading="lazy">
a[aria-label=" What's New"] > .mui-1c1kq07.MuiBox-root > img[alt=""][loading="lazy"]
<img alt="" loading="lazy">
a[data-testid="Link_Member Favorites"] > .mui-1c1kq07.MuiBox-root > img[alt=""][loading="lazy"]
<img alt="" loading="lazy">
a[data-testid="Link_Recommendations for You"] > .mui-1c1kq07.MuiBox-root > img[alt=""][loading="lazy"]
<img alt="" loading="lazy">
a[aria-label=" Customer Service"] > .mui-1c1kq07.MuiBox-root > img[alt=""][loading="lazy"]
<img alt="" loading="lazy">
img[data-airgap-id="4"]
<img class="MuiBox-root mui-mnie..." alt="Costco US homepage" loading="lazy" sizes="(max-width: 768px) 3..." src="https://bfasset.cost..." srcset="https://bfasset.cost..." data-testid="media-asset" data-airgap-id="4">
#bltbfbc79ddd90ec5c9 > .mui-ebhjg1.MuiBox-root > .mui-1vwgtf7.MuiLink-underlineNone[data-testid="Link"] > .mui-3hbjut.MuiBox-root > .mui-gn1jef.MuiBox-root > .mui-cykfnh.MuiBox-root > .mui-1eyuzx[imagesx="[object Object]"][mobileimagealttext=""]
<img class="MuiBox-root mui-1eyu..." alt="This week's featured..." loading="eager" sizes="(max-width: 768px) 3..." src="https://cdn.bfldr.co..." srcset="https://cdn.bfldr.co..." data-testid="media-asset" imagesx="[object Object]" mobileimagealttext="" mobileimagesx="[object Object]">
img[alt="Shop what's new on Costco.com!"]
<img class="MuiBox-root mui-1eyu..." alt="Shop what's new on C..." loading="eager" sizes="(max-width: 768px) 3..." src="https://cdn.bfldr.co..." srcset="https://cdn.bfldr.co..." data-testid="media-asset" imagesx="[object Object]" mobileimagealttext="" mobileimagesx="[object Object]">
Showing first 10 of 35 audited elements.
Inline text spacing must be adjustable with custom stylesheets21 elements
Single-spaced text makes it difficult for people with cognitive disabilities to track lines while reading. Providing line spacing between 1.5 to 2 helps these users start a new line more easily after finishing the previous one.
Audit Elements
nav[aria-label="Locations"]
<nav aria-label="Locations" style="display: flex; flex: 1 1 0%;">
nav[aria-label="Order"]
<nav aria-label="Order" style="display: flex; flex-direction: column; gap: 8px;">
#homepage
<div style="text-align:center;justify-content:center" id="homepage">
main
<main style="display:flex;flex-direction:column;gap:24px;margin:auto;max-width:1432px;padding:16px">
.mui-q5ef8c.MuiBox-root:nth-child(1) > .mui-1g5d1bo.MuiBox-root > .mui-1pniqjm.MuiBox-root[data-layout="one_fourth"] > .mui-etn0gy.MuiBox-root > .mui-1kxonj9[data-testid="Carousel"][aria-roledescription="carousel"] > .mui-ywfyo0.MuiBox-root > .mui-19z4t07.MuiBox-root > .mui-197gwgc.MuiBox-root
<div class="MuiBox-root mui-197gwgc" style="transform: translate3d(0px, 0px, 0px);">
.mui-q5ef8c.MuiBox-root:nth-child(1) > .mui-1g5d1bo.MuiBox-root > .mui-1pniqjm.MuiBox-root[data-layout="one_fourth"] > .mui-etn0gy.MuiBox-root > .mui-1kxonj9[data-testid="Carousel"][aria-roledescription="carousel"] > .mui-ywfyo0.MuiBox-root > .mui-19z4t07.MuiBox-root > .mui-197gwgc.MuiBox-root > .mui-vbnfu6.MuiBox-root:nth-child(1)
<div class="MuiBox-root mui-vbnfu6" style="transform: translate3d(0px, 0px, 0px);">
.mui-q5ef8c.MuiBox-root:nth-child(1) > .mui-1g5d1bo.MuiBox-root > .mui-1pniqjm.MuiBox-root[data-layout="one_fourth"] > .mui-etn0gy.MuiBox-root > .mui-1kxonj9[data-testid="Carousel"][aria-roledescription="carousel"] > .mui-ywfyo0.MuiBox-root > .mui-19z4t07.MuiBox-root > .mui-197gwgc.MuiBox-root > .mui-vbnfu6.MuiBox-root:nth-child(2)
<div class="MuiBox-root mui-vbnfu6" style="transform: translate3d(0px, 0px, 0px);">
.mui-q5ef8c.MuiBox-root:nth-child(1) > .mui-1g5d1bo.MuiBox-root > .mui-1pniqjm.MuiBox-root[data-layout="one_fourth"] > .mui-etn0gy.MuiBox-root > .mui-1kxonj9[data-testid="Carousel"][aria-roledescription="carousel"] > .mui-ywfyo0.MuiBox-root > .mui-19z4t07.MuiBox-root > .mui-197gwgc.MuiBox-root > .mui-vbnfu6.MuiBox-root:nth-child(3)
<div class="MuiBox-root mui-vbnfu6" style="transform: translate3d(0px, 0px, 0px);">
.mui-q5ef8c.MuiBox-root:nth-child(1) > .mui-1g5d1bo.MuiBox-root > .mui-1pniqjm.MuiBox-root[data-layout="one_fourth"] > .mui-etn0gy.MuiBox-root > .mui-1kxonj9[data-testid="Carousel"][aria-roledescription="carousel"] > .mui-ywfyo0.MuiBox-root > .mui-19z4t07.MuiBox-root > .mui-197gwgc.MuiBox-root > .mui-vbnfu6.MuiBox-root:nth-child(4)
<div class="MuiBox-root mui-vbnfu6" style="transform: translate3d(0px, 0px, 0px);">
.mui-q5ef8c.MuiBox-root:nth-child(1) > .mui-1g5d1bo.MuiBox-root > .mui-1pniqjm.MuiBox-root[data-layout="one_fourth"] > .mui-etn0gy.MuiBox-root > .mui-1kxonj9[data-testid="Carousel"][aria-roledescription="carousel"] > .mui-ywfyo0.MuiBox-root > .mui-19z4t07.MuiBox-root > .mui-197gwgc.MuiBox-root > .mui-vbnfu6.MuiBox-root:nth-child(5)
<div class="MuiBox-root mui-vbnfu6" style="transform: translate3d(0px, 0px, 0px);">
Showing first 10 of 21 audited elements.
Interactive controls must not be nested57 elements
Nested interactive elements create empty tab stops where screen readers remain silent. When users tab to a focusable element inside another interactive control, they receive no information about its name, role, or state, creating a confusing and broken navigation experience.
Audit Elements
li[data-testid="ListItem"]:nth-child(8) > .mui-12kqaof.MuiButton-text-button[data-testid="Button"]
<button class="MuiButtonBase-root M..." tabindex="0" type="button" id="Button_button-defaul..." data-testid="Button" aria-label="US, Country/Region U..." aria-expanded="false">
img[data-airgap-id="4"]
<img class="MuiBox-root mui-mnie..." alt="Costco US homepage" loading="lazy" sizes="(max-width: 768px) 3..." src="https://bfasset.cost..." srcset="https://bfasset.cost..." data-testid="media-asset" data-airgap-id="4">
.MuiButton-tertiary
<button class="MuiButtonBase-root M..." tabindex="0" type="button" id="Button_button-defaul..." data-testid="SearchButton" aria-label="Search">
#Button_search-strip-member-links-desktop-signin-desktop
<button class="MuiButtonBase-root M..." tabindex="0" type="button" id="Button_search-strip-..." data-testid="Button_search-strip-...">
li[data-testid="ListItem"]:nth-child(1) > .mui-rcml7p.MuiBox-root[data-testid="ShopMenu"] > .mui-94co09.MuiButton-primary[data-testid="Button_shop-menu-button"]
<button class="MuiButtonBase-root M..." tabindex="0" type="button" id="Button_shop-menu-but..." data-testid="Button_shop-menu-but..." aria-expanded="false">
.mui-16v5rsm[aria-label="Grocery"][data-testid="Button"]
<button class="MuiButtonBase-root M..." tabindex="0" type="button" id="Button_button-defaul..." data-testid="Button" aria-label="Grocery" aria-expanded="false">
.mui-16v5rsm[aria-label="Same Day"][data-testid="Button"]
<button class="MuiButtonBase-root M..." tabindex="0" type="button" id="Button_button-defaul..." data-testid="Button" aria-label="Same Day" aria-expanded="false">
.mui-16v5rsm[aria-label="Savings"][data-testid="Button"]
<button class="MuiButtonBase-root M..." tabindex="0" type="button" id="Button_button-defaul..." data-testid="Button" aria-label="Savings" aria-expanded="false">
.mui-16v5rsm[aria-label="Business Delivery"][data-testid="Button"]
<button class="MuiButtonBase-root M..." tabindex="0" type="button" id="Button_button-defaul..." data-testid="Button" aria-label="Business Delivery" aria-expanded="false">
.mui-16v5rsm[aria-label="Optical"][data-testid="Button"]
<button class="MuiButtonBase-root M..." tabindex="0" type="button" id="Button_button-defaul..." data-testid="Button" aria-label="Optical" aria-expanded="false">
Showing first 10 of 57 audited elements.
Landmarks should have a unique role or role/label/title (i.e. accessible name) combination8 elements
Each landmark on a page must have either a unique role or a unique accessible name. Duplicate landmarks confuse screen reader users about which section they're navigating to, making it difficult to efficiently move through the page structure.
Audit Elements
header
<header class="MuiBox-root mui-i9gxme">
.mui-1yu9n49
<nav class="MuiBox-root mui-1yu9n49" aria-label="Savings and locations" data-testid="LinkList">
.mui-1n18vzz > .mui-1jc6clx.MuiBox-root > .mui-hmf69j.MuiBox-root > nav[aria-label="Your Information"][data-testid="LinkList"]
<nav class="MuiBox-root mui-0" aria-label="Your Information" data-testid="LinkList">
nav[aria-label="Main"]
<nav class="MuiBox-root mui-0" aria-label="Main" data-testid="LinkList">
nav[aria-label="Locations"]
<nav aria-label="Locations" style="display: flex; flex: 1 1 0%;">
nav[aria-label="Order"]
<nav aria-label="Order" style="display: flex; flex-direction: column; gap: 8px;">
main
<main style="display:flex;flex-direction:column;gap:24px;margin:auto;max-width:1432px;padding:16px">
footer
<footer class="MuiBox-root mui-d73lw9">
lang attribute must have a valid value48 elements
Screen readers use language-specific pronunciation libraries that must match the content's language. Invalid language declarations cause screen readers to use the wrong pronunciation library, making content sound confusing or unintelligible, especially for multilingual users who access content in multiple languages.
Audit Elements
a[data-testid="Link_Photo"]
<a class="MuiTypography-root MuiTypography-inherit MuiLink-root MuiLink-underlineHover mui-1qvoexa" data-testid="Link_Photo" href="/photo.html" target="_blank" lang="en-us">
.mui-hmf69j.MuiBox-root > .mui-0.MuiBox-root > .mui-6xljbq[data-testid="List"][role="list"] > li[data-testid="ListItem"]:nth-child(1) > .mui-1qvoexa[data-testid="Link_Get To Know Costco"][aria-label="Get To Know Costco"]
<a class="MuiTypography-root MuiTypography-inherit MuiLink-root MuiLink-underlineHover mui-1qvoexa" data-testid="Link_Get To Know Costco" href="https://www.costco.com/about.html" aria-label="Get To Know Costco" target="_self" lang="en-us">
.mui-hmf69j.MuiBox-root > .mui-0.MuiBox-root > .mui-6xljbq[data-testid="List"][role="list"] > li[data-testid="ListItem"]:nth-child(2) > .mui-1qvoexa[data-testid="Link_Charitable Contributions"][aria-label="Charitable Contributions"]
<a class="MuiTypography-root MuiTypography-inherit MuiLink-root MuiLink-underlineHover mui-1qvoexa" data-testid="Link_Charitable Contributions" href="https://www.costco.com/charitable-giving.html" aria-label="Charitable Contributions" target="_self" lang="en-us">
.mui-hmf69j.MuiBox-root > .mui-0.MuiBox-root > .mui-6xljbq[data-testid="List"][role="list"] > li[data-testid="ListItem"]:nth-child(3) > .mui-1qvoexa[data-testid="Link_Company Information"][aria-label="Company Information"]
<a class="MuiTypography-root MuiTypography-inherit MuiLink-root MuiLink-underlineHover mui-1qvoexa" data-testid="Link_Company Information" href="https://www.costco.com/f/-/company-information" aria-label="Company Information" target="_self" lang="en-us">
.mui-hmf69j.MuiBox-root > .mui-0.MuiBox-root > .mui-6xljbq[data-testid="List"][role="list"] > li[data-testid="ListItem"]:nth-child(4) > .mui-1qvoexa[data-testid="Link_Sustainability Commitment"][aria-label="Sustainability Commitment"]
<a class="MuiTypography-root MuiTypography-inherit MuiLink-root MuiLink-underlineHover mui-1qvoexa" data-testid="Link_Sustainability Commitment" href="https://www.costco.com/sustainability-introduction.html" aria-label="Sustainability Commitment" target="_self" lang="en-us">
.mui-hmf69j.MuiBox-root > .mui-0.MuiBox-root > .mui-6xljbq[data-testid="List"][role="list"] > li[data-testid="ListItem"]:nth-child(5) > a[data-testid="Link_Investor Relations"][aria-label="Investor Relations"][target="_blank"]
<a class="MuiTypography-root MuiTypography-inherit MuiLink-root MuiLink-underlineHover mui-1qvoexa" data-testid="Link_Investor Relations" href="https://investor.costco.com/overview/default.aspx" aria-label="Investor Relations" target="_blank" lang="en-us">
.mui-hmf69j.MuiBox-root > .mui-0.MuiBox-root > .mui-6xljbq[data-testid="List"][role="list"] > li[data-testid="ListItem"]:nth-child(6) > .mui-1qvoexa[data-testid="Link_Careers"][aria-label="Careers"]
<a class="MuiTypography-root MuiTypography-inherit MuiLink-root MuiLink-underlineHover mui-1qvoexa" data-testid="Link_Careers" href="https://www.costco.com/jobs.html" aria-label="Careers" target="_self" lang="en-us">
.mui-hmf69j.MuiBox-root > .mui-0.MuiBox-root > .mui-6xljbq[data-testid="List"][role="list"] > li[data-testid="ListItem"]:nth-child(7) > .mui-1qvoexa[data-testid="Link_Kirkland Signature"][aria-label="Kirkland Signature"]
<a class="MuiTypography-root MuiTypography-inherit MuiLink-root MuiLink-underlineHover mui-1qvoexa" data-testid="Link_Kirkland Signature" href="https://www.costco.com/f/-/about-kirkland-signature" aria-label="Kirkland Signature" target="_self" lang="en-us">
.mui-hmf69j.MuiBox-root > .mui-0.MuiBox-root > .mui-6xljbq[data-testid="List"][role="list"] > li[data-testid="ListItem"]:nth-child(8) > .mui-1qvoexa[data-testid="Link_Logo and Media Requests"][aria-label="Logo and Media Requests"]
<a class="MuiTypography-root MuiTypography-inherit MuiLink-root MuiLink-underlineHover mui-1qvoexa" data-testid="Link_Logo and Media Requests" href="https://www.costco.com/f/-/logo-media-requests" aria-label="Logo and Media Requests" target="_self" lang="en-us">
.mui-hmf69j.MuiBox-root > .mui-0.MuiBox-root > .mui-6xljbq[data-testid="List"][role="list"] > li[data-testid="ListItem"]:nth-child(9) > .mui-1qvoexa[data-testid="Link_The Costco Connection"][aria-label="The Costco Connection"]
<a class="MuiTypography-root MuiTypography-inherit MuiLink-root MuiLink-underlineHover mui-1qvoexa" data-testid="Link_The Costco Connection" href="https://www.costcoconnection.com/" aria-label="The Costco Connection" target="_self" lang="en-us">
Showing first 10 of 48 audited elements.
Links must have discernible text99 elements
Keyboard users and screen reader users can only interact with links that have accessible names and can receive focus. Without proper names, users don't know where links lead. Without keyboard focus, users who cannot use a mouse cannot activate the links at all.
Audit Elements
.mui-1bgklie
<a class="MuiTypography-root MuiTypography-inherit MuiLink-root MuiLink-underlineHover mui-1bgklie" data-testid="jump-to-mainContent" href="#mainContent" target="_self"><div class="MuiTypography-root MuiTypography-t3 mui-1852yew" data-testid="Text">Skip to Main Content</div></a>
.mui-a4wj8d
<a class="MuiTypography-root MuiTypography-inherit MuiLink-root MuiLink-underlineNone mui-a4wj8d" data-testid="Link" href="https://www.costco.com/s?keyword=nfdrivers&sortBy=item_page_views%2Bdesc&refine=item_program_eligibility-ShipIt%7C%7Citem_location_availability-in+stock" target="_self">
a[aria-label=" While Supplies Last"]
<a class="MuiTypography-root MuiTypography-inherit MuiLink-root MuiLink-underlineHover mui-5msltf" data-testid="Link_While Supplies Last" href="https://www.costco.com/s?keyword=whilesupplieslast&COSTID=WSL_Homepage" aria-label=" While Supplies Last" target="_self">
a[data-testid="Link_Online-Only"]
<a class="MuiTypography-root MuiTypography-inherit MuiLink-root MuiLink-underlineHover mui-5msltf" data-testid="Link_Online-Only" href="/s?keyword=online%20only%20&COSTID=online_savings_header" aria-label=" Online-Only" target="_self">
a[data-testid="Link_Treasure Hunt"]
<a class="MuiTypography-root MuiTypography-inherit MuiLink-root MuiLink-underlineHover mui-5msltf" data-testid="Link_Treasure Hunt" href="/s?keyword=treasurehunt&COSTID=TH_header" aria-label=" Treasure Hunt" target="_self">
a[aria-label=" What's New"]
<a class="MuiTypography-root MuiTypography-inherit MuiLink-root MuiLink-underlineHover mui-5msltf" data-testid="Link_What's New" href="https://www.costco.com/s?keyword=new&COSTID=WN_header" aria-label=" What's New" target="_self">
a[data-testid="Link_Member Favorites"]
<a class="MuiTypography-root MuiTypography-inherit MuiLink-root MuiLink-underlineHover mui-5msltf" data-testid="Link_Member Favorites" href="/s?dept=All&keyword=MemberFavorites&COSTID=WN_header" aria-label=" Member Favorites" target="_self">
a[data-testid="Link_Recommendations for You"]
<a class="MuiTypography-root MuiTypography-inherit MuiLink-root MuiLink-underlineHover mui-5msltf" data-testid="Link_Recommendations for You" href="https://www.costco.com/recommendations.html" aria-label=" Recommendations for You" target="_self">
a[aria-label=" Customer Service"]
<a class="MuiTypography-root MuiTypography-inherit MuiLink-root MuiLink-underlineHover mui-5msltf" data-testid="Link_Customer Service" href="https://customerservice.costco.com/" aria-label=" Customer Service" target="_self">
a[data-testid="Link_homepagelink_SearchStrip"]
<a class="MuiTypography-root MuiTypography-inherit MuiLink-root MuiLink-underlineNone mui-hweoo8" data-testid="Link_homepagelink_SearchStrip" href="/" target="_self">
Showing first 10 of 99 audited elements.
Main landmark should not be contained in another landmark1 element
The main landmark must be at the top level and not nested inside other landmarks. This ensures screen reader users can quickly navigate to the primary content without searching through complex hierarchy, making page navigation simpler and more predictable.
Audit Elements
main
<main style="display:flex;flex-direction:column;gap:24px;margin:auto;max-width:1432px;padding:16px">
Page must have means to bypass repeated blocks1 element
Keyboard-only users must tab through all navigation and header content before reaching the main content, which can take several minutes and cause physical pain for users with motor limitations. Bypass mechanisms like skip links allow these users to jump directly to main content, saving time and reducing fatigue.
Audit Elements
html
<html lang="en-us">
Page should contain a level-one heading1 element
Screen reader users use keyboard shortcuts to jump directly to the first h1, expecting to land at the main content. Without an h1 or with a misplaced one, users must listen to more of the page to understand its structure, wasting valuable time on every page visit.
Audit Elements
html
<html lang="en-us">
Required ARIA attributes must be provided16 elements
ARIA widget roles need required attributes to describe their current state. Without these attributes, screen readers cannot communicate essential information like whether a checkbox is checked or a slider's current value, leaving users unable to interact effectively with the widget.
Audit Elements
.mui-1yu9n49 > .mui-1mlnd8c[data-testid="List"][role="list"]
<ul role="list" data-testid="List" class="mui-1mlnd8c">
#\:r22\:
<input aria-invalid="false" aria-describedby="typeahead-search-fie..." autocomplete="off" id=":r22:" placeholder="Search Costco" class="MuiInputBase-input M..." aria-autocomplete="both" aria-controls="suggestions-list" aria-expanded="false" autocapitalize="none" spellcheck="false" type="text" ...>
.mui-1n18vzz > .mui-1jc6clx.MuiBox-root > .mui-hmf69j.MuiBox-root > nav[aria-label="Your Information"][data-testid="LinkList"] > .mui-1chcc0f[data-testid="List"][role="list"]
<ul role="list" data-testid="List" class="mui-1chcc0f">
.mui-jyh1ez
<ul role="list" data-testid="List" class="mui-jyh1ez">
.mui-q5ef8c.MuiBox-root:nth-child(1) > .mui-1g5d1bo.MuiBox-root > .mui-1pniqjm.MuiBox-root[data-layout="one_fourth"] > .mui-etn0gy.MuiBox-root > .mui-1kxonj9[data-testid="Carousel"][aria-roledescription="carousel"]
<div class="MuiBox-root mui-1kxonj9" aria-label="Featured promos and announcements slideshow" aria-roledescription="carousel" data-testid="Carousel" role="region">
.mui-6btrbk > .mui-1kxonj9[data-testid="Carousel"][aria-roledescription="carousel"]
<div class="MuiBox-root mui-1kxonj9" aria-label="Featured promos and announcements slideshow" aria-roledescription="carousel" data-testid="Carousel" role="region">
.mui-q5ef8c.MuiBox-root:nth-child(5) > .mui-1g5d1bo.MuiBox-root > .mui-1pniqjm.MuiBox-root[data-layout="one_fourth"] > .mui-etn0gy.MuiBox-root > .mui-1kxonj9[data-testid="Carousel"][aria-roledescription="carousel"]
<div class="MuiBox-root mui-1kxonj9" aria-label="Featured promos and announcements slideshow" aria-roledescription="carousel" data-testid="Carousel" role="region">
.mui-phxlkw
<div class="MuiBox-root mui-phxlkw" aria-label="Featured promos and announcements slideshow" aria-roledescription="carousel" data-testid="Carousel_adset-thirdparty" role="region">
div:nth-child(1) > .mui-hmf69j.MuiBox-root > .mui-0.MuiBox-root > .mui-6xljbq[data-testid="List"][role="list"]
<ul role="list" data-testid="List" class="mui-6xljbq">
div:nth-child(2) > .mui-hmf69j.MuiBox-root:nth-child(1) > .mui-0.MuiBox-root > .mui-6xljbq[data-testid="List"][role="list"]
<ul role="list" data-testid="List" class="mui-6xljbq">
Showing first 10 of 16 audited elements.
The skip-link target should exist and be focusable1 element
Skip links allow keyboard users to bypass repetitive navigation and jump directly to main content. Without skip links, users must tab through potentially hundreds of navigation links on every page, which is time-consuming and can cause physical pain for users with motor limitations.
Audit Elements
.mui-1bgklie
<a class="MuiTypography-root MuiTypography-inherit MuiLink-root MuiLink-underlineHover mui-1bgklie" data-testid="jump-to-mainContent" href="#mainContent" target="_self"><div class="MuiTypography-root MuiTypography-t3 mui-1852yew" data-testid="Text">Skip to Main Content</div></a>
Users should be able to zoom and scale the text up to 500%1 element
The user-scalable="no" and restrictive maximum-scale parameters prevent people with low vision from zooming to read content. Users who rely on browser zoom to enlarge text are blocked from accessing content at a readable size, violating their need to scale pages up to 5x zoom.
Audit Elements
meta[name="viewport"]
<meta name="viewport" content="width=device-width, initial-scale=1">
Zooming and scaling must not be disabled1 element
Setting user-scalable="no" or maximum-scale less than 2 prevents people with low vision from zooming to read content. Users who enlarge text in their browsers are blocked from making content readable, violating accessibility guidelines that require supporting at least 200% zoom.
Audit Elements
meta[name="viewport"]
<meta name="viewport" content="width=device-width, initial-scale=1">