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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.

43

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
www.elastic.co/_next/static/chunks/pages/_app-d97c12df8c67cb18.js0.0 ms1.1 MiB
www.elastic.co/_next/static/css/f789431d60b6be34.css0.0 ms326.9 KiB
elastic-global-nav-assets.s3.us-west-2.amazonaws.com/texture-small.png0.0 ms299.0 KiB
cdn.optimizely.com/js/18132920325.js120.0 s266.5 KiB
cdn.optimizely.com/img/18132920325/afd038c28b604cfab5371be2bed7d258.png0.0 ms155.1 KiB
www.elastic.co/_next/static/chunks/framework-392d634b29ac61bc.js0.0 ms136.9 KiB
www.elastic.co/_next/static/chunks/main-598d2a178acfdbd2.js0.0 ms109.6 KiB
www.elastic.co/_next/static/chunks/97067-20b12381b2d5777c.js0.0 ms104.3 KiB
connect.facebook.net/en_US/fbevents.js1200.0 s95.0 KiB
edge.fullstory.com/s/fs.js3600.0 s79.9 KiB
elastic-global-nav-assets.s3.us-west-2.amazonaws.com/bg-observability-labs.png0.0 ms63.7 KiB
www.elastic.co/_next/static/chunks/46066-f7ae5bc03e0dcf9e.js0.0 ms58.5 KiB
www.elastic.co/_next/static/chunks/42904-aabed9b138d839a3.js0.0 ms56.4 KiB
www.elastic.co/static-res/fonts/MierB-Demi.woff23600.0 s62.0 KiB
/builds/9f3ebe7d468ed39ab91c3bfd3f7de0214e72e953/dist/cor...267.0 s51.5 KiB
/builds/9f3ebe7d468ed39ab91c3bfd3f7de0214e72e953/dist/cor...267.0 s48.9 KiB
www.elastic.co/_next/static/chunks/2079-6443acc4fd1bffa2.js0.0 ms46.5 KiB
www.elastic.co/_next/static/chunks/82783-f3496136de2f7c9e.js0.0 ms34.9 KiB
elastic-global-nav-assets.s3.us-west-2.amazonaws.com/bg-search-labs.png0.0 ms34.5 KiB
www.elastic.co/static-res/fonts/SpaceMono-Regular.ttf3600.0 s42.1 KiB
/signals/config/1636465863246433?v=2.9.291&r=stable&domai...1200.0 s37.3 KiB
cdn.vidyard.com/thumbnails/3eqj84w3eMfQ_l-Pp0hcVQ/af91a922acfd2b3a00a4d3.jpg0.0 ms32.3 KiB
cdn.vidyard.com/thumbnails/3eqj84w3eMfQ_l-Pp0hcVQ/af91a922acfd2b3a00a4d3.jpg0.0 ms32.3 KiB
cdn.vidyard.com/thumbnails/hvF_bosHeLNucFhhZYhqhA/9f7668d57f8facd5d3a673.jpg0.0 ms29.7 KiB
cdn.vidyard.com/thumbnails/hvF_bosHeLNucFhhZYhqhA/9f7668d57f8facd5d3a673.jpg0.0 ms29.7 KiB
www.elastic.co/_next/static/chunks/webpack-d811101f571557c0.js0.0 ms29.5 KiB
elastic-global-nav-assets.s3.us-west-2.amazonaws.com/bg-security-labs.png0.0 ms27.2 KiB
www.elastic.co/_next/static/css/6c77d32c258a35f9.css0.0 ms26.6 KiB
scripts.clarity.ms/0.8.59/clarity.js0.0 ms26.1 KiB
cdn.vidyard.com/thumbnails/5CSbT3DDs59Owv3YFFdLTA/5ca0a86060f5e158d83b8c.jpg0.0 ms24.5 KiB
cdn.vidyard.com/thumbnails/5CSbT3DDs59Owv3YFFdLTA/5ca0a86060f5e158d83b8c.jpg0.0 ms24.5 KiB
www.elastic.co/_next/static/css/888b02844377adec.css0.0 ms24.5 KiB
www.elastic.co/_next/static/css/d09cd1a3b5b6c6f2.css0.0 ms23.7 KiB
elastic-global-nav-assets.s3.us-west-2.amazonaws.com/circular-pattern.png0.0 ms23.1 KiB
www.elastic.co/_next/static/chunks/94803-e815962452a30be1.js0.0 ms21.6 KiB
www.elastic.co/_next/static/chunks/72978-7d4c7db09aa43b6a.js0.0 ms21.5 KiB
www.elastic.co/_next/static/chunks/pages/product_detail-c686df2d9ee099c3.js0.0 ms19.6 KiB
www.redditstatic.com/ads/pixel.js60.0 s19.0 KiB
www.elastic.co/_next/static/chunks/91804-d3f7af42aaefe895.js0.0 ms18.8 KiB
www.elastic.co/_next/static/chunks/72091-5e76b5d2262e4e0e.js0.0 ms18.7 KiB
www.elastic.co/static-res/js/prettify.js3600.0 s20.1 KiB
elastic-global-nav-assets.s3.us-west-2.amazonaws.com/logo-booking.svg0.0 ms15.8 KiB
tag.demandbase.com/e8eb94c57118720c.min.js3600.0 s18.4 KiB
www.elastic.co/_next/static/chunks/72134-5120ffa8855c52a4.js0.0 ms14.6 KiB
elastic-global-nav-assets.s3.us-west-2.amazonaws.com/logo-observability-labs.svg0.0 ms13.9 KiB
www.elastic.co/_next/static/chunks/73718-4876e9635f461d2c.js0.0 ms13.2 KiB
elastic-global-nav-assets.s3.us-west-2.amazonaws.com/logo-security-labs.svg0.0 ms12.1 KiB
elastic-global-nav-assets.s3.us-west-2.amazonaws.com/logo-search-labs.svg0.0 ms11.9 KiB
js.adsrvr.org/up_loader.1.1.0.js0.0 ms11.2 KiB
lift-ai-js.marketlinc.com/elastic.co/snippet.js?viewId=621086880.0 ms11.2 KiB
www.elastic.co/_next/static/css/355993a5b8c6eb2a.css0.0 ms11.0 KiB
edge.fullstory.com/datalayer/v4/latest.js3600.0 s13.5 KiB
a.quora.com/qevents.js14400.0 s14.7 KiB
x.clearbitjs.com/v1/pk_ec27dac96e63040fe28d23ffcf4a8453/forms.js?page_path=%2F0.0 ms9.7 KiB
pixel.byspotify.com/ping.min.js3600.0 s10.2 KiB
snap.licdn.com/li.lms-analytics/insight.min.js86400.0 s18.7 KiB
elastic-global-nav-assets.s3.us-west-2.amazonaws.com/logo-comcast.svg0.0 ms7.2 KiB
www.elastic.co/_next/static/s8PKYSzOx4KMlu67WHv-e/_buildManifest.js0.0 ms6.8 KiB
/rec/integrations?OrgId=o-1YRR3Q-na1&isInFrame=false&isNa...0.0 ms6.1 KiB
/loader.js?orgId=916F29E4640FB5B50A495C4F%40AdobeOrg&inst...558.0 s6.0 KiB
elastic-global-nav-assets.s3.us-west-2.amazonaws.com/logo-cisco.svg0.0 ms5.0 KiB
elastic-global-nav-assets.s3.us-west-2.amazonaws.com/logo-pepsico.svg0.0 ms4.6 KiB
elastic-global-nav-assets.s3.us-west-2.amazonaws.com/logo-docusign.svg0.0 ms4.0 KiB
lift-ai-js.marketlinc.com/elastic.co/deployment.js?697225960.0 ms3.9 KiB
info.elastic.co/js/forms2/css/forms2.css14400.0 s2.9 KiB
elastic-global-nav-assets.s3.us-west-2.amazonaws.com/logo-uol.svg0.0 ms1.9 KiB
cs.iubenda.com/cookie-solution/confs/js/67332803.js3600.0 s1.6 KiB
trk.techtarget.com/tracking.js1200.0 s1.5 KiB
munchkin.marketo.net/munchkin.js0.0 ms1.2 KiB
www.elastic.co/static-res/styles/css/vendors/prettify.css3600.0 s1.4 KiB
js.adsrvr.org/universal_pixel.js0.0 ms957 B
/rp.gif?ts=1775321458360&id=a2_dzxpwixmjt9l&event=PageVis...0.0 ms637 B
www.elastic.co/static-res/images/svg/icon-statistics-arrow-down.svg3600.0 s744 B
info.elastic.co/js/forms2/css/forms2-theme-plain.css14400.0 s723 B
partners.tremorhub.com/sync?UIDM=7b7a88e4-6318-4681-bc03-4a9320b3d21f0.0 ms393 B
cdn3.optimizely.com/js/geo4.js0.0 ms315 B
/_/ad/5ff74fd61aa34eff83665499b5a912ce/pixel?tag=ViewCont...0.0 ms294 B
/collect?v=2&fmt=js&pid=8298396%2C501860%2C25986&time=177...0.0 ms271 B
www.elastic.co/_next/static/s8PKYSzOx4KMlu67WHv-e/_ssgManifest.js0.0 ms199 B
sjrtp2-cdn.marketo.com/rtp-api/v1/rtp.js?aid=elasticco0.0 ms169 B
/collect?v=2&fmt=js&pid=8298396%2C501860%2C25986&time=177...0.0 ms41 B
/collect?v=2&fmt=js&pid=8298396%2C501860%2C25986&time=177...0.0 ms41 B
/tr/?id=1636465863246433&ev=PageView&dl=https%3A%2F%2Fwww...0.0 ms19 B

Consider setting font-display to swap or optional to ensure text is consistently visible. swap can be further optimized to mitigate layout shifts with font metric overrides.

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:Source valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]
items: [map[reflowTime:82.138 source:map[type:text value:[unattributed]]]]

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.TextImageVideo_asset__key5r > div.jsx-3145149500 > figure.jsx-3145149500 > img.jsx-3145149500 div.TextImageVideo_asset__key5r > div.jsx-3145149500 > figure.jsx-3145149500 > img.jsx-3145149500
/v3/assets/bltefdd0b53724fa2ce/bltc6368b61efd3060f/688be1...163.7 KiB147.3 KiB
Elastic Workflows div.swiper-slide > a.Card_card__CkF2v > div.Card_card__inner__iEHQx > img.Card_card__image__ECR0l
/v3/assets/bltefdd0b53724fa2ce/blt867fb90bad537493/69b1e2...45.7 KiB36.6 KiB
div.swiper-slide > a.Card_card__CkF2v > div.Card_card__inner__iEHQx > img.Card_card__image__ECR0l div.swiper-slide > a.Card_card__CkF2v > div.Card_card__inner__iEHQx > img.Card_card__image__ECR0l
/v3/assets/bltefdd0b53724fa2ce/blt49f11d6cae879892/69b1be...26.4 KiB17.4 KiB
Elastic Security XDR div.swiper-slide > a.Card_card__CkF2v > div.Card_card__inner__iEHQx > img.Card_card__image__ECR0l
/v3/assets/bltefdd0b53724fa2ce/blt1541f4c2d7d5a405/69b1e2...17.8 KiB8.8 KiB

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.

More than 4 preconnect connections were found. These should be used sparingly and only to the most important origins.
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.

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.

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 Evaluation3.0 s
Other847 ms
Script Parsing & Compilation309 ms
Style & Layout288 ms
Rendering202 ms
Garbage Collection91 ms
Parse HTML & CSS71 ms

Minifying JavaScript files can reduce payload sizes and script parse time. Learn how to minify JavaScript.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 0.0 ms 15.9 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.TextImageVideo_asset__key5r > div.jsx-3145149500 > figure.jsx-3145149500 > img.jsx-3145149500 div.TextImageVideo_asset__key5r > div.jsx-3145149500 > figure.jsx-3145149500 > img.jsx-3145149500
/v3/assets/bltefdd0b53724fa2ce/bltc6368b61efd3060f/688be1...
logo for PepsiCo div.NavSection_nav-section__xqslV > div > div.NavSection_nav-section-customer__rNJOr > img
elastic-global-nav-assets.s3.us-west-2.amazonaws.com/logo-pepsico.svg
ul.card-deck-items > li.jsx-38863284 > div.jsx-38863284 > img.jsx-38863284 ul.card-deck-items > li.jsx-38863284 > div.jsx-38863284 > img.jsx-38863284
/v3/assets/bltefdd0b53724fa2ce/blt4e5f2bf8fa20b4e8/688be4...
ul.card-deck-items > li.jsx-38863284 > div.jsx-38863284 > img.jsx-38863284 ul.card-deck-items > li.jsx-38863284 > div.jsx-38863284 > img.jsx-38863284
/v3/assets/bltefdd0b53724fa2ce/blt2619aaed40aa594c/688be4...
ul.card-deck-items > li.jsx-38863284 > div.jsx-38863284 > img.jsx-38863284 ul.card-deck-items > li.jsx-38863284 > div.jsx-38863284 > img.jsx-38863284
/v3/assets/bltefdd0b53724fa2ce/blt882c00911d2dad16/688be4...
Pepsi logo div.LogoBar_logoBar12Column__Zt3ix > div.logo > a > img.img-fluid
/v3/assets/bltefdd0b53724fa2ce/blt527201268b46f065/689cf0...
Docusign logo div.LogoBar_logoBar12Column__Zt3ix > div.logo > a > img.img-fluid
/v3/assets/bltefdd0b53724fa2ce/blt734c6ee33f1507cb/68b739...
T-Mobile logo div.LogoBar_logoBar12Column__Zt3ix > div.logo > a > img.img-fluid
/v3/assets/bltefdd0b53724fa2ce/blt2667b0af186b9ab7/67635d...
Land Rover logo div.LogoBar_logoBar12Column__Zt3ix > div.logo > a > img.img-fluid
/v3/assets/bltefdd0b53724fa2ce/blt1c1ba8a61aff9e96/67635d...
Swift logo div.LogoBar_logoBar12Column__Zt3ix > div.logo > a > img.img-fluid
/v3/assets/bltefdd0b53724fa2ce/blt446a04a57168767b/68c447...
logo for UOL div.NavSection_nav-section__xqslV > div > div.NavSection_nav-section-customer__rNJOr > img
elastic-global-nav-assets.s3.us-west-2.amazonaws.com/logo-uol.svg
logo for Docusign div.NavSection_nav-section__xqslV > div > div.NavSection_nav-section-customer__rNJOr > img
elastic-global-nav-assets.s3.us-west-2.amazonaws.com/logo-docusign.svg
Elastic The Search AI Company div > div.Footer_logo__oqoeK > a > img
/v3/assets/bltefdd0b53724fa2ce/bltf8467a95eaa27e4a/6638d7...
arrow div.illustration-icon-grid-item-content > div.statistics-title-container > div.arrow-down > img
www.elastic.co/static-res/images/svg/icon-statistics-arrow-down.svg
Elastic's GitHub page ul.Footer_socialIconList__Hgtx5 > li.GitHub > a > img
/v3/assets/bltefdd0b53724fa2ce/blt6ef5841a45696d80/64ca2a...
Elastic's LinkedIn page ul.Footer_socialIconList__Hgtx5 > li.LinkedIn > a#footer_linkedin > img
/v3/assets/bltefdd0b53724fa2ce/blte7cfb1a091901ce1/5eb00c...
Elastic's YouTube page ul.Footer_socialIconList__Hgtx5 > li.YouTube > a#footer_youtube > img
/v3/assets/bltefdd0b53724fa2ce/blt7c28b18be98b1af8/5eb00c...
Elastic's Twitter page ul.Footer_socialIconList__Hgtx5 > li.Twitter > a#footer_twitter > img
/v3/assets/bltefdd0b53724fa2ce/blt341fed86979a9fbb/5eb00c...
Elastic's Facebook page ul.Footer_socialIconList__Hgtx5 > li.Facebook > a#footer_facebook > img
/v3/assets/bltefdd0b53724fa2ce/blt75566c5278ad68da/5eb00c...

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
LCP breakdown
Optimize viewport for mobile
Minify CSS
User Timing marks and measures 17 user timings
Avoid long main-thread tasks 11 long tasks found
Avoid non-composited animations 1 animated element found
Page didn't prevent back/forward cache restoration
Network Requests
Network Round Trip Times 220 ms
Server Backend Latencies 650 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 170 ms
Avoid large layout shifts 3 layout shifts found
INP breakdown
LCP request discovery
90

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

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
header.primary > div.Navigation_navigation__vsvF6 > div.Container_container__CBaVM > a.Logo_logo__8Ik3Q header.primary > div.Navigation_navigation__vsvF6 > div.Container_container__CBaVM > a.Logo_logo__8Ik3Q

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
Elasticsearch Solutions Enterprise Resources Pricing Docs div.Container_container__CBaVM > nav.NavDropdown_nav-dropdown__bxj1L > div > ul.NavDropdown_nav-dropdown-list__aQOGV

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

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
Go to slide 1 div.Carousel_carousel__agjUp > div.Carousel_carousel-controls__qHG1F > div.swiper-pagination > span.swiper-pagination-bullet
Go to slide 2 div.Carousel_carousel__agjUp > div.Carousel_carousel-controls__qHG1F > div.swiper-pagination > span.swiper-pagination-bullet
Go to slide 3 div.Carousel_carousel__agjUp > div.Carousel_carousel-controls__qHG1F > div.swiper-pagination > span.swiper-pagination-bullet
Go to slide 4 div.Carousel_carousel__agjUp > div.Carousel_carousel-controls__qHG1F > div.swiper-pagination > span.swiper-pagination-bullet
Go to slide 5 div.Carousel_carousel__agjUp > div.Carousel_carousel-controls__qHG1F > div.swiper-pagination > span.swiper-pagination-bullet

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
`[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
`[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
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.
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
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
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
Form elements have associated labels
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.
Elements with visible text labels have matching accessible names.
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.
81

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
AttributionReporting
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 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 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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