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Lighthouse Desktop

· 0 checks — Desktop Lighthouse audit -- Performance, Accessibility, Best Practices, and SEO category breakdown.
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Detailed Report

Audit breakdown by category with detailed findings.

70

Performance

Insights

Remove large, duplicate JavaScript modules from bundles to reduce unnecessary bytes consumed by network activity.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Polyfills and transforms enable older browsers to use new JavaScript features. However, many aren't necessary for modern browsers. Consider modifying your JavaScript build process to not transpile Baseline features, unless you know you must support older browsers. Learn why most sites can deploy ES6+ code without transpiling

Why this matters

Performance issues directly impact user engagement and conversion rates.

3rd party code can significantly impact load performance. Reduce and defer loading of 3rd party code to prioritize your page's content.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Layout shifts occur when elements move absent any user interaction. Investigate the causes of layout shifts, such as elements being added, removed, or their fonts changing as the page loads.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:node label:Element subItemsHeading:map[key:extra] valueType:node] map[granularity:0.001 key:score label:Layout shift score subItemsHeading:map[key:cause valueType:text] valueType:numeric]]
items: [map[node:map[type:text value:Total] score:0.619511] map[node:map[boundingRect:map[bottom:5874 height:5308 left:0 right:1350 top:565 width:1350] lhId:page-3-DIV nodeLabel:New arrival View more [Rhinoceros is the strongest?] The strongest animal in th… path:1,HTML,1,BODY,1,DIV,3,DIV,5,DIV selector:body#body-x_home > div.wrap > div.main_contents > div.main_contents snippet:<div class="main_contents"> type:node] score:0.340405 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:944 height:34 left:21 right:55 top:910 width:34] lhId:page-8-IMG nodeLabel:AniTube path:1,HTML,1,BODY,1,DIV,3,DIV,5,DIV,0,DIV,1,DIV,0,UL,0,LI,1,DIV,3,DIV,0,P,0,A,0,IMG selector:div.video_owner > p.title-text > a.avatar_common > img.video_owner_avatar_img snippet:<img src="https://imgssalon.veoh.com/video/resources/01/media/user/03/3/47ae06cb5990…" class="video_owner_avatar_img" width="34" height="34" alt="AniTube"> type:node]]] type:subitems]] map[node:map[boundingRect:map[bottom:5874 height:5308 left:0 right:1350 top:565 width:1350] lhId:page-3-DIV nodeLabel:New arrival View more [Rhinoceros is the strongest?] The strongest animal in th… path:1,HTML,1,BODY,1,DIV,3,DIV,5,DIV selector:body#body-x_home > div.wrap > div.main_contents > div.main_contents snippet:<div class="main_contents"> type:node] score:0.279106 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:544 height:431 left:0 right:1350 top:113 width:1350] lhId:page-0-IMG nodeLabel:div.slick-track > div#slick-slide00 > a > img path:1,HTML,1,BODY,1,DIV,3,DIV,1,DIV,0,DIV,0,DIV,0,DIV,0,A,0,IMG selector:div.slick-track > div#slick-slide00 > a > img snippet:<img src="https://imgssalon.veoh.com/video/resources/01/media/banner/02/2/b/072106cb…" alt=""> type:node]]] type:subitems]]]

Reducing the download time of images can improve the perceived load time of the page and LCP. Learn more about optimizing image size

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLResource SizeEst Savings
div.slick-track > div#slick-slide00 > a > img div.slick-track > div#slick-slide00 > a > img
/video/resources/01/media/banner/02/2/b/072106cbb5acb436d...185.0 KiB90.2 KiB
AniTube div.video_owner > p.title-text > a.avatar_common > img.video_owner_avatar_img
/video/resources/01/media/user/03/3/47ae06cb599024452f66b...75.4 KiB75.2 KiB
Veoh div.header_inner > h1 > a.logo > img
/video/resources/01/media/site/01/1/b0bd350218c86df187709...13.1 KiB12.4 KiB

Optimize LCP by making the LCP image discoverable from the HTML immediately, and avoiding lazy-loading

Why this matters

Performance issues directly impact user engagement and conversion rates.

lhId: page-0-IMG
nodeLabel: div.slick-track > div#slick-slide00 > a > img
path: 1,HTML,1,BODY,1,DIV,3,DIV,1,DIV,0,DIV,0,DIV,0,DIV,0,A,0,IMG
selector: div.slick-track > div#slick-slide00 > a > img
snippet: <img src="https://imgssalon.veoh.com/video/resources/01/media/banner/02/2/b/072106cb…" alt="">

Avoid chaining critical requests by reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.

Why this matters

Performance issues directly impact user engagement and conversion rates.

description: [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints help the browser establish a connection earlier in the page load, saving time when the first request for that origin is made. The following are the origins that the page preconnected to.
title: Preconnected origins
value: no origins were preconnected
description: Add [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints to your most important origins, but try to use no more than 4.
title: Preconnect candidates

Requests are blocking the page's initial render, which may delay LCP. Deferring or inlining can move these network requests out of the critical path.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLTransfer SizeDuration
imgssalon.veoh.com/tpl/default/styles/js/jquery-2.0.0.min.js?177673944529.0 KiB
imgssalon.veoh.com/tpl/default/styles/master.css?177673944528.1 KiB
imgssalon.veoh.com/tpl/default/styles/js/jquery-3.5.1.min.js?177673944530.8 KiB
imgssalon.veoh.com/tpl/color_blue/styles/color_theme_root.css?17767394456.6 KiB
imgssalon.veoh.com/tpl/default/styles/icon_css_gg.css?17767394452.5 KiB
imgssalon.veoh.com/tpl/default/styles/fontawesome-all.min.css?17767394458.0 KiB211 ms
imgssalon.veoh.com/tpl/default/styles/x/slick.min.css?17767394451.0 KiB
imgssalon.veoh.com/tpl/default/styles/x_home.css?17767394451.8 KiB
imgssalon.veoh.com/tpl/color_blue/styles/color_theme_overwrite.css?17767394452.2 KiB
imgssalon.veoh.com/tpl/default/styles/rating-stars.min.css?1776739445585 B
imgssalon.veoh.com/tpl/default/styles/salonsys_top.css?17767394451.3 KiB
imgssalon.veoh.com/tpl/default/styles/x/slick-theme.min.css?17767394451.3 KiB

A long cache lifetime can speed up repeat visits to your page. Learn more about caching.

Why this matters

Performance issues directly impact user engagement and conversion rates.

RequestCache TTLTransfer Size
proxyimgs.veoh.com/vip-videoprem2160/up/thumb2/202505/07/D/20250507DUZbY5sv.jpg86400.0 s124.6 KiB
proxyimgs.veoh.com/vip-videoprem2230/up/thumb2/202505/13/M/20250513MRZUnTdx.jpg86400.0 s102.8 KiB
proxyimgs.veoh.com/vip-videoprem2160/up/thumb2/202505/07/g/20250507g3BbbCEe.jpg86400.0 s98.8 KiB
proxyimgs.veoh.com/vip-videoprem2160/up/thumb2/202505/07/A/20250507A5xJgXLT.jpg86400.0 s69.7 KiB
proxyimgs.veoh.com/vip-videoprem2160/up/thumb2/202505/07/u/20250507ukA4H27b.jpg86400.0 s67.6 KiB
proxyimgs.veoh.com/vip-videoprem2220/up/thumb2/202504/22/z/20250422zpRH7Wwq.jpg86400.0 s65.0 KiB
proxyimgs.veoh.com/vip-videoprem2160/up/thumb2/202505/07/w/20250507wb6s6Erc.jpg86400.0 s54.2 KiB
proxyimgs.veoh.com/vip-videoprem2220/up/thumb2/202504/22/G/20250422Gn3afNWB.jpg86400.0 s52.0 KiB
imgssalon.veoh.com/tpl/color_blue/images/icon_select_down.svg0.0 ms553 B

These insights are also available in the Chrome DevTools Performance Panel - record a trace to view more detailed information.

Diagnostics

Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. Learn how to reduce unused CSS.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 30 ms 22.3 KiB
URLTransfer SizeEst Savings
imgssalon.veoh.com/tpl/default/styles/master.css?177673944527.7 KiB22.3 KiB

Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. Learn how to reduce unused JavaScript.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 60 ms 85.5 KiB
URLTransfer SizeEst Savings
www.googletagmanager.com/gtag/js?id=G-PLDKLYB7ND156.8 KiB65.4 KiB
imgssalon.veoh.com/tpl/default/styles/js/jquery-2.0.0.min.js?177673944528.6 KiB20.1 KiB

Many navigations are performed by going back to a previous page, or forwards again. The back/forward cache (bfcache) can speed up these return navigations. Learn more about the bfcache

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failure reasonFailure type
Pages with cache-control:no-store header cannot enter back/forward cache.Actionable
Pages whose main resource has cache-control:no-store cannot enter back/forward cache.Not actionable
Back/forward cache is disabled because some JavaScript network request received resource with Cache-Control: no-store header.Not actionable

Minifying CSS files can reduce network payload sizes. Learn how to minify CSS.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 0.0 ms 6.2 KiB
URLTransfer SizeEst Savings
imgssalon.veoh.com/tpl/default/styles/master.css?177673944528.1 KiB6.2 KiB

Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensions

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL
div.slick-track > div#slick-slide00 > a > img div.slick-track > div#slick-slide00 > a > img
/video/resources/01/media/banner/02/2/b/072106cbb5acb436d...
Veoh div.header_inner > h1 > a.logo > img
/video/resources/01/media/site/01/1/b0bd350218c86df187709...
Veoh div.footer_head > h1.ft_logo > a > img
/video/resources/01/media/site/01/1/b0bd350218c86df187709...

More information about the performance of your application. These numbers don't directly affect the Performance score.

These are the largest layout shifts observed on the page. Each table item represents a single layout shift, and shows the element that shifted the most. Below each item are possible root causes that led to the layout shift. Some of these layout shifts may not be included in the CLS metric value due to windowing. Learn how to improve CLS

Why this matters

Performance issues directly impact user engagement and conversion rates.

ElementLayout shift score
New arrival View more [Rhinoceros is the strongest?] The strongest animal in th… body#body-x_home > div.wrap > div.main_contents > div.main_contents
0.340
New arrival View more [Rhinoceros is the strongest?] The strongest animal in th… body#body-x_home > div.wrap > div.main_contents > div.main_contents
0.279
●Time to Interactive 1.6 s
●Document request latency
●Optimize DOM size
●Font display
●Forced reflow
●LCP breakdown
●Modern HTTP
●Optimize viewport for mobile
●Max Potential First Input Delay 50 ms
●Minify JavaScript
●Avoids enormous network payloads Total size was 1,337 KiB
●User Timing marks and measures 5 user timings
●JavaScript execution time 0.1 s
●Minimizes main-thread work 0.4 s
●Network Requests
●Network Round Trip Times 60 ms
●Server Backend Latencies 60 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
●Avoid multiple page redirects
●Initial server response time was short Root document took 360 ms
○INP breakdown
○Avoid long main-thread tasks
○Avoid non-composited animations
85

Accessibility

These checks highlight opportunities to improve the accessibility of your web app. Automatic detection can only detect a subset of issues and does not guarantee the accessibility of your web app, so manual testing is also encouraged.

Contrast

Low-contrast text is difficult or impossible for many users to read. Learn how to provide sufficient color contrast.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Sign up div.header_inner > nav.header_right > div#header_menu > a.signup_btn
10 ul#video_list_sliders_ranking > li.rl_wd > div.ranking_number > p
Copyright Veoh All Rights Reserved. footer.footer > div.footer_inner > div.ft_btm_link > div.copyright

These are opportunities to improve the legibility of your content.

Names and labels

Form elements without effective labels can create frustrating experiences for screen reader users. Learn more about the `select` element.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Language 日本語 English 中文(繁体字) 中文(簡体字) 한국어 Deutsch español Français Русский nav.header_bottom_nav > ul > div.submenu_language > select

Link text (and alternate text for images, when used as links) that is discernible, unique, and focusable improves the navigation experience for screen reader users. Learn how to make links accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.slick-list > div.slick-track > div#slick-slide00 > a div.slick-list > div.slick-track > div#slick-slide00 > a
li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link
li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link
li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link
li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link
li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link
li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link
li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link
li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link
li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link
li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link
li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link
li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link
li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link
li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link
li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link
li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link
li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link
li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link
li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link
li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link
li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link
li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link
li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link
li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link
li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link
li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link
li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link
li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link
li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link
li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link
li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link
li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link
li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link
li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link
li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link
li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link
li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link
li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link
li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link
li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link
li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link
li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link
li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link
li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link
li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link
li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link
li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link
li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link
li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link
li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link li.rl_wd > div.rl_wd_hover_wrap > div.c-productCard__img > a.c-productCard__img__link

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

Tables and lists

Screen readers have a specific way of announcing lists. Ensuring proper list structure aids screen reader output. Learn more about proper list structure.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Search from tag New arrival Popular product Trendy product Free product My list… div.wrap > header > nav.header_bottom_nav > ul

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Best practices

One main landmark helps screen reader users navigate a web page. Learn more about landmarks.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
html html

These items highlight common accessibility best practices.

○Interactive controls are keyboard focusable
○Interactive elements indicate their purpose and state
○The page has a logical tab order
○Visual order on the page follows DOM order
○User focus is not accidentally trapped in a region
○The user's focus is directed to new content added to the page
○HTML5 landmark elements are used to improve navigation
○Offscreen content is hidden from assistive technology
○Custom controls have associated labels
○Custom controls have ARIA roles
●`[aria-*]` attributes match their roles
●`[aria-hidden="true"]` is not present on the document `<body>`
●`[role]`s have all required `[aria-*]` attributes
●Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
●`[role]`s are contained by their required parent element
●`[role]` values are valid
●`[aria-*]` attributes have valid values
●`[aria-*]` attributes are valid and not misspelled
●Buttons have an accessible name
●Image elements have `[alt]` attributes
●Form elements have associated labels
●`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
●ARIA attributes are used as specified for the element's role
●Elements use only permitted ARIA attributes
●Document has a `<title>` element
●`<html>` element has a `[lang]` attribute
●`<html>` element has a valid value for its `[lang]` attribute
●Links are distinguishable without relying on color.
●List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements
●No element has a `[tabindex]` value greater than 0
●Touch targets have sufficient size and spacing.
●Heading elements appear in a sequentially-descending order
●Deprecated ARIA roles were not used
●Identical links have the same purpose.
●Elements with visible text labels have matching accessible names.
○`[accesskey]` values are unique
○`button`, `link`, and `menuitem` elements have accessible names
○Elements with `role="dialog"` or `role="alertdialog"` have accessible names.
○`[aria-hidden="true"]` elements do not contain focusable descendents
○ARIA input fields have accessible names
○ARIA `meter` elements have accessible names
○ARIA `progressbar` elements have accessible names
○Elements with the `role=text` attribute do not have focusable descendents.
○ARIA toggle fields have accessible names
○ARIA `tooltip` elements have accessible names
○ARIA `treeitem` elements have accessible names
○The page contains a heading, skip link, or landmark region
○`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
○Definition list items are wrapped in `<dl>` elements
○ARIA IDs are unique
○No form fields have multiple labels
○`<frame>` or `<iframe>` elements have a title
○`<html>` element has an `[xml:lang]` attribute with the same base language as the `[lang]` attribute.
○Input buttons have discernible text.
○`<input type="image">` elements have `[alt]` text
○The document does not use `<meta http-equiv="refresh">`
○`<object>` elements have alternate text
○Skip links are focusable.
○Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
○`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
○`[lang]` attributes have a valid value
○`<video>` elements contain a `<track>` element with `[kind="captions"]`
○Tables have different content in the summary attribute and `<caption>`.
○All heading elements contain content.
○Uses ARIA roles only on compatible elements
○Image elements do not have `[alt]` attributes that are redundant text.
○Tables use `<caption>` instead of cells with the `[colspan]` attribute to indicate a caption.
○`<td>` elements in a large `<table>` have one or more table headers.
100

Best Practices

●Uses HTTPS
●Avoids deprecated APIs
●Avoids third-party cookies
●Allows users to paste into input fields
●Avoids requesting the geolocation permission on page load
●Avoids requesting the notification permission on page load
●Displays images with correct aspect ratio
●Serves images with appropriate resolution
●Page has the HTML doctype
●Properly defines charset
●No browser errors logged to the console
●No issues in the `Issues` panel in Chrome Devtools
●Ensure CSP is effective against XSS attacks
●Use a strong HSTS policy
●Ensure proper origin isolation with COOP
●Mitigate clickjacking with XFO or CSP
●Mitigate DOM-based XSS with Trusted Types
●Detected JavaScript libraries
●Page has valid source maps
○Redirects HTTP traffic to HTTPS
100

SEO

These checks ensure that your page is following basic search engine optimization advice. There are many additional factors Lighthouse does not score here that may affect your search ranking, including performance on Core Web Vitals. Learn more about Google Search Essentials.

○Structured data is valid
●Page isn’t blocked from indexing
●Document has a `<title>` element
●Document has a meta description
●Page has successful HTTP status code
●Links have descriptive text
●Links are crawlable
●robots.txt is valid
●Image elements have `[alt]` attributes
●Document has a valid `hreflang`
●Document has a valid `rel=canonical`

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