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Lighthouse Mobile

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

Audit breakdown by category with detailed findings.

34

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.

RequestCache TTLTransfer Size
/_next/static/chunks/pages/_app-ee3d012350456bf5.js?dpl=c...3600.0 s888.5 KiB
www.theringer.com/_next/static/media/af780a379cdeea63-s.p.woff23600.0 s113.5 KiB
www.theringer.com/_next/static/media/77f9cf24d40ba9ac-s.p.woff23600.0 s106.5 KiB
cdn.concert.io/lib/concert-ads/v2-latest/concert_ads.js3600.0 s104.0 KiB
www.theringer.com/_next/static/media/005497315cf9acf0-s.p.woff23600.0 s100.6 KiB
www.theringer.com/_next/static/media/35c02c0f3907609f-s.p.woff23600.0 s99.1 KiB
www.theringer.com/_next/static/media/175a77cc9db9a24c-s.p.woff23600.0 s96.7 KiB
www.theringer.com/_next/static/media/4e28d8537bc72037-s.p.woff23600.0 s91.8 KiB
c.amazon-adsystem.com/aax2/apstag.js3600.0 s90.9 KiB
www.theringer.com/_next/static/media/bda8101939848cfd-s.p.otf3600.0 s85.7 KiB
/pagead/managed/js/activeview/current/ufs_web_display.js3600.0 s73.1 KiB
www.theringer.com/_next/static/media/f1c33117647e1241-s.p.woff23600.0 s56.2 KiB
www.theringer.com/_next/static/media/3582f3c0309ef02d-s.p.woff23600.0 s56.0 KiB
www.theringer.com/_next/static/media/d2f736b85ce1753d-s.p.woff23600.0 s54.4 KiB
www.theringer.com/_next/static/media/07ac3fb93eb1994c-s.p.woff23600.0 s48.4 KiB
www.theringer.com/_next/static/media/9c177ba8760f9e4d-s.p.woff23600.0 s45.4 KiB
/_next/static/chunks/framework-48bf801e6e8f0470.js?dpl=c8...3600.0 s42.7 KiB
/_next/static/css/2148c686b2e2b82e.css?dpl=c8a36f4e5aecd4...3600.0 s40.3 KiB
/_next/static/chunks/main-3f5a3e7ed442262d.js?dpl=c8a36f4...3600.0 s36.8 KiB
secure.cdn.fastclick.net/js/pubcid/latest/pubcid.min.js900.0 s21.7 KiB
images.mediago.io/ML/d1011902867a98c1f96049dbd5f19771__scv1__622x368.webp3600.0 s16.8 KiB
static.chartbeat.com/js/chartbeat.js7200.0 s16.1 KiB
static.chartbeat.com/js/chartbeat_mab.js7200.0 s10.1 KiB
cdn.concert.io/lib/concert-concierge.2.10.1.min.js86400.0 s17.0 KiB
config.aps.amazon-adsystem.com/configs/31763600.0 s4.4 KiB
/_next/static/chunks/6323.6cfa8ea6e87ec2f4.js?dpl=c8a36f4...3600.0 s3.7 KiB
/_next/static/chunks/webpack-05a9c13c525df01f.js?dpl=c8a3...3600.0 s3.5 KiB
/_next/static/chunks/8366.d44cd9e274f096d6.js?dpl=c8a36f4...3600.0 s1.7 KiB
images.mediago.io/js/mediago/style/style_banner_a02e55.css3600.0 s1.7 KiB
open.spotify.com/embed/iframe-api/v10.0 ms1.3 KiB
/_next/static/chunks/8889.c764b191e90cc939.js?dpl=c8a36f4...3600.0 s1.2 KiB
/_next/static/chunks/5112.29b6cc2c6bed70ac.js?dpl=c8a36f4...3600.0 s1.2 KiB
/_next/static/chunks/8039.054821cf2c869355.js?dpl=c8a36f4...3600.0 s1.1 KiB
/_next/static/chunks/pages/index-9e0928ac59586ac9.js?dpl=...3600.0 s1.1 KiB
/_next/static/chunks/7736.19c9402df3e5b6d8.js?dpl=c8a36f4...3600.0 s1.1 KiB
/pagead/js/r20260421/r20110914/client/qs_click_protection...1209600.0 s8.5 KiB
/_next/static/c8a36f4e5aecd402ee36208bf365aa55021c19c7/_b...3600.0 s950 B
/_next/static/chunks/9068.b620888aa4fb3df5.js?dpl=c8a36f4...3600.0 s800 B
/_next/static/chunks/3796.599ba5fb4f8f954f.js?dpl=c8a36f4...3600.0 s745 B
/_next/static/chunks/8157.bf32a5a163733b3a.js?dpl=c8a36f4...3600.0 s592 B
apps.voxmedia.com/ad-block-detect/test_ads_prebid_blocker.js0.0 ms378 B
/_next/static/c8a36f4e5aecd402ee36208bf365aa55021c19c7/_s...3600.0 s365 B
/pagead/js/r20260421/r20110914/client/window_focus_fy2021.js1209600.0 s1.2 KiB
/_next/static/chunks/pages/search-140eedacdf5d6623.js?dpl...3600.0 s0 B
/_next/static/chunks/pages/[...wordpressNode]-8bd98f619fc...3600.0 s0 B

Your first network request is the most important. Reduce its latency by avoiding redirects, ensuring a fast server response, and enabling text compression.

Why this matters

Performance issues directly impact user engagement and conversion rates.

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:Top function call valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]
items: [map[reflowTime:90.028 source:map[column:138339 line:1 type:source-location url:https://www.theringer.com/_next/static/chunks/framework-48bf801e6e8f0470.js?dpl=c8a36f4e5aecd402ee36208bf365aa55021c19c7 urlProvider:network]]]
headings: [map[key:source label:Source valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]
items: [map[reflowTime:59.912 source:map[type:text value:[unattributed]]] map[reflowTime:1.485 source:map[column:62205 line:464 type:source-location url:https://www.theringer.com/_next/static/chunks/pages/_app-ee3d012350456bf5.js?dpl=c8a36f4e5aecd402ee36208bf365aa55021c19c7 urlProvider:network]] map[reflowTime:0.208 source:map[column:216764 line:265 type:source-location url:https://www.theringer.com/_next/static/chunks/pages/_app-ee3d012350456bf5.js?dpl=c8a36f4e5aecd402ee36208bf365aa55021c19c7 urlProvider:network]] map[reflowTime:22.286 source:map[column:57614 line:265 type:source-location url:https://www.theringer.com/_next/static/chunks/pages/_app-ee3d012350456bf5.js?dpl=c8a36f4e5aecd402ee36208bf365aa55021c19c7 urlProvider:network]] map[reflowTime:4.359 source:map[column:36529 line:485 type:source-location url:https://www.theringer.com/_next/static/chunks/pages/_app-ee3d012350456bf5.js?dpl=c8a36f4e5aecd402ee36208bf365aa55021c19c7 urlProvider:network]] map[reflowTime:2.68 source:map[column:87785 line:485 type:source-location url:https://www.theringer.com/_next/static/chunks/pages/_app-ee3d012350456bf5.js?dpl=c8a36f4e5aecd402ee36208bf365aa55021c19c7 urlProvider:network]] map[reflowTime:1.586 source:map[column:59846 line:485 type:source-location url:https://www.theringer.com/_next/static/chunks/pages/_app-ee3d012350456bf5.js?dpl=c8a36f4e5aecd402ee36208bf365aa55021c19c7 urlProvider:network]] map[reflowTime:0.65 source:map[column:344544 line:265 type:source-location url:https://www.theringer.com/_next/static/chunks/pages/_app-ee3d012350456bf5.js?dpl=c8a36f4e5aecd402ee36208bf365aa55021c19c7 urlProvider:network]] map[reflowTime:0.454 source:map[column:65800 line:485 type:source-location url:https://www.theringer.com/_next/static/chunks/pages/_app-ee3d012350456bf5.js?dpl=c8a36f4e5aecd402ee36208bf365aa55021c19c7 urlProvider:network]] map[reflowTime:8.06 source:map[column:50732 line:28 type:source-location url:https://www.theringer.com/_next/static/chunks/pages/_app-ee3d012350456bf5.js?dpl=c8a36f4e5aecd402ee36208bf365aa55021c19c7 urlProvider:network]] map[reflowTime:1.312 source:map[column:111523 line:265 type:source-location url:https://www.theringer.com/_next/static/chunks/pages/_app-ee3d012350456bf5.js?dpl=c8a36f4e5aecd402ee36208bf365aa55021c19c7 urlProvider:network]] map[reflowTime:0.05 source:map[column:8921 line:464 type:source-location url:https://www.theringer.com/_next/static/chunks/pages/_app-ee3d012350456bf5.js?dpl=c8a36f4e5aecd402ee36208bf365aa55021c19c7 urlProvider:network]] map[reflowTime:0.61 source:map[column:206580 line:265 type:source-location url:https://www.theringer.com/_next/static/chunks/pages/_app-ee3d012350456bf5.js?dpl=c8a36f4e5aecd402ee36208bf365aa55021c19c7 urlProvider:network]] map[reflowTime:0.266 source:map[column:7625 line:485 type:source-location url:https://www.theringer.com/_next/static/chunks/pages/_app-ee3d012350456bf5.js?dpl=c8a36f4e5aecd402ee36208bf365aa55021c19c7 urlProvider:network]] map[reflowTime:0.748 source:map[column:77291 line:28 type:source-location url:https://www.theringer.com/_next/static/chunks/pages/_app-ee3d012350456bf5.js?dpl=c8a36f4e5aecd402ee36208bf365aa55021c19c7 urlProvider:network]] map[reflowTime:0.671 source:map[column:54350 line:485 type:source-location url:https://www.theringer.com/_next/static/chunks/pages/_app-ee3d012350456bf5.js?dpl=c8a36f4e5aecd402ee36208bf365aa55021c19c7 urlProvider:network]] map[reflowTime:0.918 source:map[column:286403 line:265 type:source-location url:https://www.theringer.com/_next/static/chunks/pages/_app-ee3d012350456bf5.js?dpl=c8a36f4e5aecd402ee36208bf365aa55021c19c7 urlProvider:network]] map[reflowTime:47.201 source:map[column:84572 line:265 type:source-location url:https://www.theringer.com/_next/static/chunks/pages/_app-ee3d012350456bf5.js?dpl=c8a36f4e5aecd402ee36208bf365aa55021c19c7 urlProvider:network]] map[reflowTime:8.775 source:map[column:84737 line:265 type:source-location url:https://www.theringer.com/_next/static/chunks/pages/_app-ee3d012350456bf5.js?dpl=c8a36f4e5aecd402ee36208bf365aa55021c19c7 urlProvider:network]] map[reflowTime:0.098 source:map[column:84685 line:265 type:source-location url:https://www.theringer.com/_next/static/chunks/pages/_app-ee3d012350456bf5.js?dpl=c8a36f4e5aecd402ee36208bf365aa55021c19c7 urlProvider:network]]]

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.swiper-slide > div.ui-bg-black > div.lg:ui-relative > img.ui-object-cover div.swiper-slide > div.ui-bg-black > div.lg:ui-relative > img.ui-object-cover
/_next/image?url=https%3A%2F%2Fwp.theringer.com%2Fwp-cont...74.6 KiB51.8 KiB
div.[@media(min-width:1920px)]:!ui-ml-0 > div.ui-relative > a.ui-absolute > img.ui-object-cover div.[@media(min-width:1920px)]:!ui-ml-0 > div.ui-relative > a.ui-absolute > img.ui-object-cover
/_next/image?url=https%3A%2F%2Fwp.theringer.com%2Fwp-cont...78.7 KiB32.8 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.swiper-slide > div.ui-bg-black > div.lg:ui-relative > img.ui-object-cover
path: 1,HTML,1,BODY,0,DIV,2,MAIN,0,SECTION,0,DIV,0,DIV,0,DIV,0,DIV,2,DIV,0,DIV,1,DIV,0,IMG
selector: div.swiper-slide > div.ui-bg-black > div.lg:ui-relative > img.ui-object-cover
snippet: <img alt="" data-sentry-element="Image" data-sentry-source-file="contained.tsx" loading="eager" decoding="async" data-nimg="fill" class="ui-object-cover ui-select-none" sizes="(max-width: 1024px) 100vw, (max-width: 1920px) 50vw, 960px" srcset="/_next/image?url=https%3A%2F%2Fwp.theringer.com%2Fwp-content%2Fuploads%2F2…" src="https://www.theringer.com/_next/image?url=https%3A%2F%2Fwp.theringer.com%2…" style="position: absolute; height: 100%; width: 100%; inset: 0px;" pinger-seen="true">

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

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

Redirects introduce additional delays before the page can be loaded. Learn how to avoid page redirects.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 912 ms
URLTime Spent
theringer.com/912 ms
www.theringer.com/0.0 ms

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: 0.0 ms 34.4 KiB
URLTransfer SizeEst Savings
/_next/static/css/2148c686b2e2b82e.css?dpl=c8a36f4e5aecd4...39.9 KiB34.4 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.

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.

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.

CategoryTime Spent
Script Evaluation7.8 s
Other1.4 s
Style & Layout778 ms
Script Parsing & Compilation691 ms
Garbage Collection325 ms
Rendering223 ms
Parse HTML & CSS136 ms

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

●Layout shift culprits
●Optimize DOM size
●Font display
●LCP breakdown
●Modern HTTP
●Render blocking requests
●Optimize viewport for mobile
●Minify CSS
●Minify JavaScript
●User Timing marks and measures 25 user timings
●Avoid long main-thread tasks 20 long tasks found
●Image elements have explicit `width` and `height`
●Page didn't prevent back/forward cache restoration
●Network Requests
●Network Round Trip Times 100 ms
●Server Backend Latencies 110 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
●Initial server response time was short Root document took 20 ms
○INP breakdown
○Avoid non-composited animations
○Avoid large layout shifts
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.

Names and labels

When a button doesn't have an accessible name, screen readers announce it as "button", making it unusable for users who rely on screen readers. Learn how to make buttons more accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.ui-w-full > div.max-lg:ui-bg-white/20 > div.ui-flex > button.ui-size-8 div.ui-w-full > div.max-lg:ui-bg-white/20 > div.ui-flex > button.ui-size-8
div.ui-w-full > div.max-lg:ui-bg-white/20 > div.ui-flex > button.ui-size-8 div.ui-w-full > div.max-lg:ui-bg-white/20 > div.ui-flex > button.ui-size-8
div.ui-w-full > div.max-lg:ui-bg-white/20 > div.ui-flex > button.ui-size-8 div.ui-w-full > div.max-lg:ui-bg-white/20 > div.ui-flex > button.ui-size-8
article.ui-flex-col > a > div.ui-relative > button.ui-inline-flex article.ui-flex-col > a > div.ui-relative > button.ui-inline-flex
div.ui-flex > div.ui-relative > div.ui-absolute > button.ui-flex div.ui-flex > div.ui-relative > div.ui-absolute > button.ui-flex

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.ui-relative > div.ui-flex-col > div.ui-mb-4 > a.ui-inline-flex div.ui-relative > div.ui-flex-col > div.ui-mb-4 > a.ui-inline-flex
div#swiper-wrapper-776fb8a63d282e94 > div.swiper-slide > div.ui-bg-black > a.ui-absolute div#swiper-wrapper-776fb8a63d282e94 > div.swiper-slide > div.ui-bg-black > a.ui-absolute
div.gap-large > div.w-full > div.flex > a.ui-inline-flex div.gap-large > div.w-full > div.flex > a.ui-inline-flex
main.main-grid > section.col-span-full > div.mb-4 > a.ui-inline-flex main.main-grid > section.col-span-full > div.mb-4 > a.ui-inline-flex
article.ui-flex > div > div.ui-relative > a.ui-inline-flex article.ui-flex > div > div.ui-relative > a.ui-inline-flex
article.ui-flex > div > div.ui-relative > a.ui-inline-flex article.ui-flex > div > div.ui-relative > a.ui-inline-flex
div.gap-large > div.w-full > div.flex > a.ui-inline-flex div.gap-large > div.w-full > div.flex > a.ui-inline-flex
div.md:max-h-[27.5rem] > article.ui-flex > div.ui-my-auto > a.ui-inline-flex div.md:max-h-[27.5rem] > article.ui-flex > div.ui-my-auto > a.ui-inline-flex
div.md:max-h-[27.5rem] > article.ui-flex > div.ui-my-auto > a.ui-inline-flex div.md:max-h-[27.5rem] > article.ui-flex > div.ui-my-auto > a.ui-inline-flex
div.md:max-h-[27.5rem] > article.ui-flex > div.ui-my-auto > a.ui-inline-flex div.md:max-h-[27.5rem] > article.ui-flex > div.ui-my-auto > a.ui-inline-flex
div.md:max-h-[27.5rem] > article.ui-flex > div.ui-my-auto > a.ui-inline-flex div.md:max-h-[27.5rem] > article.ui-flex > div.ui-my-auto > a.ui-inline-flex
div.gap-large > div.w-full > div.flex > a.ui-inline-flex div.gap-large > div.w-full > div.flex > a.ui-inline-flex
div.ui-relative > div.-ui-mx-6 > div.ui-flex > a.ui-inline-flex div.ui-relative > div.-ui-mx-6 > div.ui-flex > a.ui-inline-flex
div.ui-relative > div.-ui-mx-6 > div.ui-flex > a.ui-inline-flex div.ui-relative > div.-ui-mx-6 > div.ui-flex > a.ui-inline-flex
div.ui-relative > div.-ui-mx-6 > div.ui-flex > a.ui-inline-flex div.ui-relative > div.-ui-mx-6 > div.ui-flex > a.ui-inline-flex
div.ui-relative > div.-ui-mx-6 > div.ui-flex > a.ui-inline-flex div.ui-relative > div.-ui-mx-6 > div.ui-flex > a.ui-inline-flex
div.ui-relative > div.-ui-mx-6 > div.ui-flex > a.ui-inline-flex div.ui-relative > div.-ui-mx-6 > div.ui-flex > a.ui-inline-flex
div.gap-large > div.w-full > div.flex > a.ui-inline-flex div.gap-large > div.w-full > div.flex > a.ui-inline-flex

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.

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
Who’s Going First? section.col-span-full > div.mb-4 > p.motion-safe:ui-transition-colors > span.motion-safe:ui-transition-colors
a True Crime Podcast div.w-full > div.flex > h2.text-heading-sm-medium > span.text-black/30

These are opportunities to improve the legibility of your content.

Best practices

Touch targets with sufficient size and spacing help users who may have difficulty targeting small controls to activate the targets. Learn more about touch targets.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
NFL Draft article.ui-flex > div.ui-flex > div.ui-flex > a.ui-rounded-5xl

These items highlight common accessibility best practices.

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
Discover div#__next > header#main-header > div.relative > button
○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
●`[role]` values are valid
●`[aria-*]` attributes have valid values
●`[aria-*]` attributes are valid and not misspelled
●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.
●`button`, `link`, and `menuitem` elements have accessible names
●ARIA attributes are used as specified for the element's role
●`[aria-hidden="true"]` elements do not contain focusable descendents
●Elements use only permitted ARIA attributes
●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.
●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
●Heading elements appear in a sequentially-descending order
●Document has a main landmark.
●Deprecated ARIA roles were not used
○`[accesskey]` values are unique
○Elements with `role="dialog"` or `role="alertdialog"` have accessible names.
○ARIA input fields have accessible names
○ARIA `meter` elements have accessible names
○ARIA `progressbar` elements have accessible names
○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
○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.
○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.
○Identical links have the same purpose.
○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.
77

Best Practices

General

Deprecated APIs will eventually be removed from the browser. Learn more about deprecated APIs.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Deprecation / WarningSource
Topics

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.

SourceDescription
Failed to load resource: the server responded with a status of 403 ()
Failed to load resource: the server responded with a status of 404 ()
Failed to load resource: the server responded with a status of 451 ()
Uncaught [object Object]
Uncaught [object Object]

Source maps translate minified code to the original source code. This helps developers debug in production. In addition, Lighthouse is able to provide further insights. Consider deploying source maps to take advantage of these benefits. Learn more about source maps.

Why this matters

Performance issues directly impact user engagement and conversion rates.

●Uses HTTPS
●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
○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`

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