Lighthouse Mobile

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

SCORE

GRADE

FIX

REVIEW

PASS

INFO

Detailed Report

Audit breakdown by category with detailed findings.

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.

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.

Request	Cache TTL	Transfer Size
cdn.ziffstatic.com/pg/downdetector.prebid.js	3322.0 s	232.1 KiB
openads-cdn.adsrvr.org/openadsjs/build/v1.0/ziffdavis/openads.js	0.0 ms	89.9 KiB
/_next/static/chunks/2037-4989b8c4c5d0e6a7.js?dpl=f019186...	14400.0 s	125.0 KiB
client.aps.amazon-adsystem.com/publisher.js	3600.0 s	82.5 KiB
/_next/static/media/1f173e5e25f3efee-s.p.woff2?dpl=f01918...	14400.0 s	67.3 KiB
/_next/static/chunks/4bd1b696-f5772828d0c6f5dc.js?dpl=f01...	14400.0 s	59.2 KiB
cdn.ziffstatic.com/pg/downdetector.js	143.0 s	29.8 KiB
cdn.ziffstatic.com/jst/zdconsent.js	583.0 s	27.8 KiB
/_next/static/chunks/52774a7f-315ec457c979b05c.js?dpl=f01...	14400.0 s	36.3 KiB
/_next/static/media/904be59b21bd51cb-s.p.woff2?dpl=f01918...	14400.0 s	35.4 KiB
/_next/static/css/2e9485093c9c7368.css?dpl=f019186ee39f3b...	14400.0 s	32.1 KiB
/_next/static/css/698f2c2b167efd70.css?dpl=f019186ee39f3b...	14400.0 s	29.5 KiB
/_next/static/chunks/app/[domain]/[locale]/layout-70a1e29...	14400.0 s	24.9 KiB
/_next/static/media/b1f344208eb4edfe-s.p.woff2?dpl=f01918...	14400.0 s	24.2 KiB
/_next/static/chunks/6068-21feabad7d4c9319.js?dpl=f019186...	14400.0 s	18.8 KiB
cdn.ziffstatic.com/jst/otBannerSdk.202512.1.0.js	2301115.0 s	126.2 KiB
/_next/static/chunks/2615-0d63dd9f8b783df6.js?dpl=f019186...	14400.0 s	17.1 KiB
/_next/static/chunks/8525-8727185398e610d2.js?dpl=f019186...	14400.0 s	15.5 KiB
/_next/static/css/0b2524a2a34a7de7.css?dpl=f019186ee39f3b...	14400.0 s	14.7 KiB
/_next/static/chunks/app/[domain]/[locale]/(home)/page-3d...	14400.0 s	12.9 KiB
/_next/static/chunks/8646-00667f5f49e7a072.js?dpl=f019186...	14400.0 s	12.4 KiB
/_next/static/media/bf24a9759715e608-s.p.woff2?dpl=f01918...	14400.0 s	11.1 KiB
/_next/static/chunks/1037-60fdc24c796fbe5a.js?dpl=f019186...	14400.0 s	8.1 KiB
/_next/static/chunks/2009-64744b830b63ec7f.js?dpl=f019186...	14400.0 s	6.8 KiB
/_next/static/chunks/3937-2b190bf6d9c65082.js?dpl=f019186...	14400.0 s	6.6 KiB
/_next/static/chunks/app/global-error-f6d61abc7fedc813.js...	14400.0 s	6.3 KiB
/_next/static/chunks/6646-56785240c3df989e.js?dpl=f019186...	14400.0 s	6.2 KiB
/_next/static/chunks/2402-6c297e662e4a1953.js?dpl=f019186...	14400.0 s	5.5 KiB
/_next/static/chunks/7628-c7c61c5838bdd92f.js?dpl=f019186...	14400.0 s	5.4 KiB
/_next/static/chunks/8806-5c8921572e39d482.js?dpl=f019186...	14400.0 s	4.7 KiB
sb.scorecardresearch.com/beacon.js	86400.0 s	6.7 KiB
/_next/static/chunks/6848-367a948827f0d031.js?dpl=f019186...	14400.0 s	3.8 KiB
/_next/static/chunks/5125-b3840f68d2c10cc5.js?dpl=f019186...	14400.0 s	3.8 KiB
/logos/f73513a8-7a10-4a9d-939a-703f8d994839/68ba5107-2631...	86400.0 s	6.3 KiB
cdn.ziffstatic.com/jst/otGPP.202512.1.0.js	2459382.0 s	22.2 KiB
/_next/static/chunks/main-app-07f67394251fcb16.js?dpl=f01...	14400.0 s	2.9 KiB
/_next/static/css/f2cd99fb0e552880.css?dpl=f019186ee39f3b...	14400.0 s	2.8 KiB
/_next/static/chunks/app/[domain]/[locale]/status/[slug]/...	14400.0 s	2.6 KiB
/_next/static/chunks/webpack-301d096882ede0e1.js?dpl=f019...	14400.0 s	2.6 KiB
config.aps.amazon-adsystem.com/configs/3336	3600.0 s	2.1 KiB
/_next/static/chunks/app/[domain]/[locale]/error-25116a7d...	14400.0 s	2.2 KiB
/_next/static/chunks/app/[domain]/[locale]/not-found-7dc5...	14400.0 s	2.1 KiB
/_next/static/css/69156bf3f6ea5313.css?dpl=f019186ee39f3b...	14400.0 s	1.6 KiB
cdn3.downdetector.com/cdn-cgi/image/width=828/images/ellipse_blur.svg	14400.0 s	891 B
cdn.ziffstatic.com/ajs?zoneid=a	3600.0 s	661 B
cdn3.downdetector.com/cdn-cgi/image/width=3840/images/sparkline_mobile.svg	14400.0 s	728 B
cdn.ziffstatic.com/pg/downdetector.css	2550.0 s	549 B
/track/cmb/generic?ttd_pid=liveintent&ttd_tpi=1&gdpr=0&us...	0.0 ms	254 B
/usersync/liveintent/?cb=//i.liadm.com/s/35004?bidder_id%...	0.0 ms	200 B

A forced reflow occurs when JavaScript queries geometric properties (such as offsetWidth) after styles have been invalidated by a change to the DOM state. This can result in poor performance. Learn more about forced reflows and possible mitigations.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:source label:Source valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]

items: [map[reflowTime:62.651 source:map[type:text value:[unattributed]]]]

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.page > section.hero > div.relative > img.absolute

path: 1,HTML,1,BODY,4,MAIN,1,DIV,0,SECTION,0,DIV,0,IMG

selector: div.page > section.hero > div.relative > img.absolute

snippet: <img alt="" width="400" height="400" decoding="async" data-nimg="1" class="absolute top-[-40px] -right-[40px] z-0 pointer-events-none select-none w-[…" style="color:transparent" srcset="https://cdn3.downdetector.com/cdn-cgi/image/width=640/images/ellipse_blur.…" src="https://cdn3.downdetector.com/cdn-cgi/image/width=828/images/ellipse_blur.…">

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

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.

URL	Transfer Size	Duration
/_next/static/css/2e9485093c9c7368.css?dpl=f019186ee39f3b...	32.1 KiB	2.4 s
/_next/static/css/0b2524a2a34a7de7.css?dpl=f019186ee39f3b...	14.7 KiB	1.4 s
/_next/static/css/69156bf3f6ea5313.css?dpl=f019186ee39f3b...	1.6 KiB	803 ms
/_next/static/css/698f2c2b167efd70.css?dpl=f019186ee39f3b...	29.5 KiB	2.2 s
/_next/static/css/f2cd99fb0e552880.css?dpl=f019186ee39f3b...	2.8 KiB	803 ms

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.

	URL	Resource Size	Est Savings
a.block > div.py-2 > div.mb-4 > img.w-auto `a.block > div.py-2 > div.mb-4 > img.w-auto`	/cdn-cgi/image/width=640/https://cdn2.downdetector.com/st...	40.2 KiB	39.0 KiB
a.block > div.py-2 > div.mb-4 > img.w-auto `a.block > div.py-2 > div.mb-4 > img.w-auto`	/cdn-cgi/image/width=640/https://cdn2.downdetector.com/st...	28.5 KiB	27.4 KiB
a.block > div.py-2 > div.mb-4 > img.w-auto `a.block > div.py-2 > div.mb-4 > img.w-auto`	/cdn-cgi/image/width=640/https://cdn2.downdetector.com/st...	25.3 KiB	24.1 KiB
a.block > div.py-2 > div.mb-4 > img.w-auto `a.block > div.py-2 > div.mb-4 > img.w-auto`	/cdn-cgi/image/width=640/https://cdn2.downdetector.com/st...	23.5 KiB	22.4 KiB
a.block > div.py-2 > div.mb-4 > img.w-auto `a.block > div.py-2 > div.mb-4 > img.w-auto`	/cdn-cgi/image/width=640/https://cdn2.downdetector.com/st...	21.5 KiB	20.9 KiB
a.block > div.py-2 > div.mb-4 > img.w-auto `a.block > div.py-2 > div.mb-4 > img.w-auto`	/cdn-cgi/image/width=640/https://cdn2.downdetector.com/st...	16.9 KiB	16.2 KiB
a.block > div.py-2 > div.mb-4 > img.w-auto `a.block > div.py-2 > div.mb-4 > img.w-auto`	/cdn-cgi/image/width=640/https://cdn2.downdetector.com/st...	14.7 KiB	14.0 KiB
a.block > div.py-2 > div.mb-4 > img.w-auto `a.block > div.py-2 > div.mb-4 > img.w-auto`	/cdn-cgi/image/width=640/https://cdn2.downdetector.com/st...	13.5 KiB	13.3 KiB
a.block > div.py-2 > div.mb-4 > img.w-auto `a.block > div.py-2 > div.mb-4 > img.w-auto`	/cdn-cgi/image/width=640/https://cdn2.downdetector.com/st...	14.1 KiB	13.1 KiB
a.block > div.py-2 > div.mb-4 > img.w-auto `a.block > div.py-2 > div.mb-4 > img.w-auto`	/cdn-cgi/image/width=640/https://cdn2.downdetector.com/st...	13.7 KiB	12.7 KiB

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

Time to Interactive is the amount of time it takes for the page to become fully interactive. Learn more about the Time to Interactive metric.

Why this matters

Performance issues directly impact user engagement and conversion rates.

TTI

The maximum potential First Input Delay that your users could experience is the duration of the longest task. Learn more about the Maximum Potential First Input Delay metric.

Why this matters

Performance issues directly impact user engagement and conversion rates.

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: 450 ms 60.7 KiB

URL	Transfer Size	Est Savings
/_next/static/css/2e9485093c9c7368.css?dpl=f019186ee39f3b...	31.7 KiB	31.7 KiB
/_next/static/css/698f2c2b167efd70.css?dpl=f019186ee39f3b...	29.1 KiB	29.1 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: 2.7 s 817.2 KiB

URL	Transfer Size	Est Savings
cdn.ziffstatic.com/pg/downdetector.prebid.js	231.9 KiB	153.6 KiB
/pagead/managed/js/gpt/m202604170101/pubads_impl.js?cb=31...	187.4 KiB	122.6 KiB
www.googletagmanager.com/gtag/js?id=G-0PZM58H213&cx=c&gtm=4e64k1h1	153.6 KiB	106.0 KiB
/_next/static/chunks/2037-4989b8c4c5d0e6a7.js?dpl=f019186...	124.6 KiB	76.5 KiB
cdn.ziffstatic.com/jst/otBannerSdk.202512.1.0.js	126.2 KiB	73.9 KiB
www.googletagmanager.com/gtag/destination?id=G-0PZM58H213&cx=c&gtm=4e64k1h1	153.7 KiB	61.9 KiB
openads-cdn.adsrvr.org/openadsjs/build/v1.0/ziffdavis/openads.js	89.6 KiB	60.0 KiB
www.googletagmanager.com/gtm.js?id=GTM-WS2HF4K	129.0 KiB	56.2 KiB
client.aps.amazon-adsystem.com/publisher.js	82.1 KiB	49.3 KiB
/_next/static/chunks/52774a7f-315ec457c979b05c.js?dpl=f01...	35.8 KiB	34.2 KiB
/_next/static/chunks/4bd1b696-f5772828d0c6f5dc.js?dpl=f01...	58.8 KiB	23.0 KiB

Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to reduce Javascript execution time.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Total CPU Time	Script Evaluation	Script Parse
/_next/static/chunks/2037-4989b8c4c5d0e6a7.js?dpl=f019186...	1.9 s	1.7 s	62 ms
downdetector.com/	1.1 s	49 ms	50 ms
Unattributable	1.1 s	138 ms	0.0 ms
/_next/static/chunks/app/[domain]/[locale]/(home)/page-3d...	976 ms	151 ms	5.0 ms
/pagead/managed/js/gpt/m202604170101/pubads_impl.js?cb=31...	445 ms	358 ms	80 ms
cdn.ziffstatic.com/jst/otBannerSdk.202512.1.0.js	432 ms	281 ms	72 ms
www.googletagmanager.com/gtag/destination?id=G-0PZM58H213&cx=c&gtm=4e64k1h1	424 ms	318 ms	62 ms
cdn.ziffstatic.com/jst/otGPP.202512.1.0.js	338 ms	311 ms	20 ms
cdn.ziffstatic.com/pg/downdetector.prebid.js	335 ms	213 ms	105 ms
www.googletagmanager.com/gtm.js?id=GTM-WS2HF4K	324 ms	263 ms	55 ms
client.aps.amazon-adsystem.com/publisher.js	282 ms	228 ms	46 ms
cdn.ziffstatic.com/jst/zdconsent.js	275 ms	249 ms	12 ms
openads-cdn.adsrvr.org/openadsjs/build/v1.0/ziffdavis/openads.js	215 ms	175 ms	39 ms
/_next/static/chunks/4bd1b696-f5772828d0c6f5dc.js?dpl=f01...	162 ms	69 ms	26 ms
cdn.ziffstatic.com/pg/downdetector.js	129 ms	68 ms	12 ms
www.googletagmanager.com/gtag/js?id=G-0PZM58H213&cx=c&gtm=4e64k1h1	104 ms	42 ms	61 ms
securepubads.g.doubleclick.net/tag/js/gpt.js	102 ms	86 ms	15 ms
/_next/static/css/2e9485093c9c7368.css?dpl=f019186ee39f3b...	54 ms	0.0 ms	0.0 ms

Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to minimize main-thread work

Why this matters

Performance issues directly impact user engagement and conversion rates.

Category	Time Spent
Script Evaluation	4.8 s
Other	1.9 s
Script Parsing & Compilation	819 ms
Style & Layout	725 ms
Rendering	464 ms
Parse HTML & CSS	209 ms
Garbage Collection	98 ms

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

●Layout shift culprits

●Document request latency

●Optimize DOM size

●Font display

●LCP breakdown

●Modern HTTP

●Optimize viewport for mobile

●Minify CSS

●Minify JavaScript

●Avoids enormous network payloads Total size was 2,601 KiB

●User Timing marks and measures 11 user timings

●Avoid long main-thread tasks 20 long tasks found

●Avoid non-composited animations 1 animated element found

●Image elements have explicit `width` and `height`

●Page didn't prevent back/forward cache restoration

●Network Requests

●Network Round Trip Times 260 ms

●Server Backend Latencies 250 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 270 ms

●Avoid large layout shifts 15 layout shifts found

○INP breakdown

100

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.

Visible text labels that do not match the accessible name can result in a confusing experience for screen reader users. Learn more about accessible names.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Grok `div > div#company-58795 > div > a.block`
9anime `div > div#company-54260 > div > a.block`
Reddit `div > div#company-33342 > div > a.block`
Spectrum `div > div#company-20024 > div > a.block`
X (Twitter) `div > div#company-10204 > div > a.block`
T-Mobile `div > div#company-20097 > div > a.block`
AT&T `div > div#company-20010 > div > a.block`
YouTube `div > div#company-34651 > div > a.block`
Verizon `div > div#company-20107 > div > a.block`
DoorDash `div > div#company-37581 > div > a.block`
Roblox `div > div#company-34820 > div > a.block`
Microsoft Outlook `div > div#company-10205 > div > a.block`
Experian `div > div#company-38155 > div > a.block`
Xfinity by Comcast `div > div#company-20029 > div > a.block`
Crunchyroll `div > div#company-35114 > div > a.block`
TikTok `div > div#company-38367 > div > a.block`
Microsoft Teams `div > div#company-38018 > div > a.block`
Microsoft 365 `div > div#company-34532 > div > a.block`
Facebook `div > div#company-10198 > div > a.block`
Yahoo Mail `div > div#company-20120 > div > a.block`
Cloudflare `div > div#company-32542 > div > a.block`
Steam `div > div#company-20092 > div > a.block`
Microsoft Azure `div > div#company-32547 > div > a.block`
Escape from Tarkov `div > div#company-37424 > div > a.block`
Fiserv `div > div#company-52922 > div > a.block`
Claude AI `div > div#company-59644 > div > a.block`
Instagram `div > div#company-20052 > div > a.block`
Cox `div > div#company-20030 > div > a.block`
Playstation Network `div > div#company-20076 > div > a.block`
Discord `div > div#company-35795 > div > a.block`
Rainbow Six Siege `div > div#company-35463 > div > a.block`
Amazon Web Services `div > div#company-10147 > div > a.block`
Frontier `div > div#company-20041 > div > a.block`
Mediacom `div > div#company-20058 > div > a.block`
Target `div > div#company-34320 > div > a.block`
Webster Bank `div > div#company-49649 > div > a.block`
Google `div > div#company-10200 > div > a.block`
Canvas by Instructure `div > div#company-39372 > div > a.block`
Cricket Wireless `div > div#company-20032 > div > a.block`
Amazon `div > div#company-20006 > div > a.block`
Netflix `div > div#company-20065 > div > a.block`
Optimum / Cablevision `div > div#company-20020 > div > a.block`
Madden `div > div#company-37747 > div > a.block`
Minecraft `div > div#company-20063 > div > a.block`
Amazon Prime Video `div > div#company-33370 > div > a.block`
Fortnite `div > div#company-36375 > div > a.block`
Spotify `div > div#company-20090 > div > a.block`
Capital One `div > div#company-20022 > div > a.block`
Privacy Policy `div#onetrust-group-container > div#onetrust-policy > div#onetrust-policy-text > a.ot-cookie-policy-link`

○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]` 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 with `role="dialog"` or `role="alertdialog"` have accessible names.

●`[aria-hidden="true"]` elements do not contain focusable descendents

●Elements use only permitted ARIA attributes

●Background and foreground colors have a sufficient contrast ratio

●Document has a `<title>` element

●`<frame>` or `<iframe>` elements have a title

●`<html>` element has a `[lang]` attribute

●`<html>` element has a valid value for its `[lang]` attribute

●Links are distinguishable without relying on color.

●Links have a discernible name

●Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).

●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

●Skip links are focusable.

●Document has a main landmark.

●Deprecated ARIA roles were not used

●Identical links have the same purpose.

○`[accesskey]` values are unique

○`button`, `link`, and `menuitem` elements have accessible names

○ARIA input fields have accessible names

○ARIA `meter` elements have accessible names

○ARIA `progressbar` elements have accessible names

○`[role]`s are contained by their required parent element

○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

○`<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

○Select elements have associated label elements.

○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.

Best Practices

General

Errors logged to the console indicate unresolved problems. They can come from network request failures and other browser concerns. Learn more about this errors in console diagnostic audit

Why this matters

Performance issues directly impact user engagement and conversion rates.

Source	Description
downdetector.com/	`Access to XMLHttpRequest at 'https://rp.liadm.com/j?dtstmp=1776898372506&aid=b-01lj&se=e30&duid=06a53c0712b8--01kpvpawex1psjej93kypjpzej&tv=v3.14.0&pu=https%3A%2F%2Fdowndetector.com%2F&us_privacy=1YYY&wpn=lc-bundle&wpv=v3.14.0&gpp_s=DBABLA~BVQVAAAAAAGA.QA&gpp_as=7&cd=.downdetector.com&pv=9f33189b-822e-487f-abc2-987e7ca4244b' from origin 'https://downdetector.com' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.`
downdetector.com/	`Access to XMLHttpRequest at 'https://rp.liadm.com/j?dtstmp=1776898372506&aid=b-01lj&se=e30&duid=06a53c0712b8--01kpvpawex1psjej93kypjpzej&tv=v3.14.0&pu=https%3A%2F%2Fdowndetector.com%2F&us_privacy=1YYY&wpn=lc-bundle&wpv=v3.14.0&gpp_s=DBABLA~BVQVAAAAAAGA.QA&gpp_as=7&cd=.downdetector.com&pv=9f33189b-822e-487f-abc2-987e7ca4244b' from origin 'https://downdetector.com' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.`
downdetector.com/	`Access to XMLHttpRequest at 'https://rp.liadm.com/j?dtstmp=1776898372506&aid=b-01lj&se=e30&duid=06a53c0712b8--01kpvpawex1psjej93kypjpzej&tv=v3.14.0&pu=https%3A%2F%2Fdowndetector.com%2F&us_privacy=1YYY&wpn=lc-bundle&wpv=v3.14.0&gpp_s=DBABLA~BVQVAAAAAAGA.QA&gpp_as=7&cd=.downdetector.com&pv=9f33189b-822e-487f-abc2-987e7ca4244b' from origin 'https://downdetector.com' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.`
downdetector.com/	`Access to XMLHttpRequest at 'https://rp.liadm.com/j?dtstmp=1776898372506&aid=b-01lj&se=e30&duid=06a53c0712b8--01kpvpawex1psjej93kypjpzej&tv=v3.14.0&pu=https%3A%2F%2Fdowndetector.com%2F&us_privacy=1YYY&wpn=lc-bundle&wpv=v3.14.0&gpp_s=DBABLA~BVQVAAAAAAGA.QA&gpp_as=7&cd=.downdetector.com&pv=9f33189b-822e-487f-abc2-987e7ca4244b' from origin 'https://downdetector.com' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.`
/j?dtstmp=1776898372506&aid=b-01lj&se=e30&duid=06a53c0712...	`Failed to load resource: net::ERR_FAILED`
/j?dtstmp=1776898372506&aid=b-01lj&se=e30&duid=06a53c0712...	`Failed to load resource: net::ERR_FAILED`
/j?dtstmp=1776898372506&aid=b-01lj&se=e30&duid=06a53c0712...	`Failed to load resource: net::ERR_FAILED`
/j?dtstmp=1776898372506&aid=b-01lj&se=e30&duid=06a53c0712...	`Failed to load resource: net::ERR_FAILED`

●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 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 DOM-based XSS with Trusted Types

●Detected JavaScript libraries

●Page has valid source maps

○Redirects HTTP traffic to HTTPS

○Mitigate clickjacking with XFO or CSP

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`