Lighthouse Desktop

· 0 checks — Desktop 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.

100

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
gitter.im/images/gitter-apps.png	0.0 ms	299.9 KiB
gitter.im/images/clouds-banner.jpg	0.0 ms	292.1 KiB
gitter.im/images/testimonials/testimonial-dreadknight.jpg	0.0 ms	61.7 KiB
gitter.im/images/matrix-hero-spiro.svg	0.0 ms	46.5 KiB
gitter.im/images/testimonials/testimonial-chrisvnicholson.jpg	0.0 ms	35.0 KiB
gitter.im/images/testimonials/testimonial-samccone.jpeg	0.0 ms	32.9 KiB
gitter.im/images/testimonials/testimonial-diasdavid.jpeg	0.0 ms	17.9 KiB
gitter.im/images/trusted-by-logos/trusted-by-mozilla-science-lab.png	0.0 ms	14.4 KiB
gitter.im/images/testimonials/testimonial-ttmc.jpg	0.0 ms	13.4 KiB
gitter.im/_astro/styleguide.6d44e7d5.css	0.0 ms	13.2 KiB
gitter.im/images/map.png	0.0 ms	13.2 KiB
gitter.im/images/testimonials/testimonial-doge.jpeg	0.0 ms	11.5 KiB
gitter.im/images/trusted-by-logos/trusted-by-aws.png	0.0 ms	10.6 KiB
gitter.im/images/testimonials/testimonial-krishnasrinivas.jpg	0.0 ms	10.2 KiB
gitter.im/_astro/index.d2ae4499.css	0.0 ms	9.1 KiB
gitter.im/images/trusted-by-logos/trusted-by-google.png	0.0 ms	9.0 KiB
gitter.im/images/trusted-by-logos/trusted-by-microsoft.png	0.0 ms	7.8 KiB
gitter.im/images/trusted-by-logos/trusted-by-airbnb.png	0.0 ms	7.5 KiB
gitter.im/images/trusted-by-logos/trusted-by-rails.png	0.0 ms	5.6 KiB
gitter.im/images/trusted-by-logos/trusted-by-scala.png	0.0 ms	5.1 KiB
gitter.im/images/logo-text-white-nomargin@2x.png	0.0 ms	720 B
gitter.im/images/quote-arrow.png	0.0 ms	391 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.

URL	Est Savings
cdn03.gitter.im/_s/0f349ae51/fonts/sourcesans/SourceSansPro-Bold.otf.woff	45 ms
cdn02.gitter.im/_s/0f349ae51/fonts/sourcesans/SourceSansPro-Regular.otf.woff	35 ms
cdn02.gitter.im/_s/0f349ae51/fonts/sourcesans/SourceSansPro-Semibold.otf.woff	35 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
div.testimonials-quotes > blockquote.testimonials-quote > div.testimonial-image-wrapper > img.astro-J7PV25F6 `div.testimonials-quotes > blockquote.testimonials-quote > div.testimonial-image-wrapper > img.astro-J7PV25F6`	gitter.im/images/testimonials/testimonial-dreadknight.jpg	61.4 KiB	60.3 KiB
div.testimonials-quotes > blockquote.testimonials-quote > div.testimonial-image-wrapper > img.astro-J7PV25F6 `div.testimonials-quotes > blockquote.testimonials-quote > div.testimonial-image-wrapper > img.astro-J7PV25F6`	gitter.im/images/testimonials/testimonial-chrisvnicholson.jpg	34.8 KiB	33.2 KiB
div.testimonials-quotes > blockquote.testimonials-quote > div.testimonial-image-wrapper > img.astro-J7PV25F6 `div.testimonials-quotes > blockquote.testimonials-quote > div.testimonial-image-wrapper > img.astro-J7PV25F6`	gitter.im/images/testimonials/testimonial-samccone.jpeg	32.6 KiB	31.1 KiB
div.testimonials-quotes > blockquote.testimonials-quote > div.testimonial-image-wrapper > img.astro-J7PV25F6 `div.testimonials-quotes > blockquote.testimonials-quote > div.testimonial-image-wrapper > img.astro-J7PV25F6`	gitter.im/images/testimonials/testimonial-diasdavid.jpeg	17.7 KiB	16.6 KiB
Mozilla Science Lab `ul.trusted-by-list > li.trusted-by-list-item > a.astro-J7PV25F6 > img.trusted-by-list-item-logo`	gitter.im/images/trusted-by-logos/trusted-by-mozilla-science-lab.png	14.2 KiB	13.6 KiB
div.testimonials-quotes > blockquote.testimonials-quote > div.testimonial-image-wrapper > img.astro-J7PV25F6 `div.testimonials-quotes > blockquote.testimonials-quote > div.testimonial-image-wrapper > img.astro-J7PV25F6`	gitter.im/images/testimonials/testimonial-ttmc.jpg	13.2 KiB	11.6 KiB
div.testimonials-quotes > blockquote.testimonials-quote > div.testimonial-image-wrapper > img.astro-J7PV25F6 `div.testimonials-quotes > blockquote.testimonials-quote > div.testimonial-image-wrapper > img.astro-J7PV25F6`	gitter.im/images/testimonials/testimonial-doge.jpeg	11.4 KiB	10.6 KiB
Amazon Web Services `ul.trusted-by-list > li.trusted-by-list-item--smaller > a.astro-J7PV25F6 > img.trusted-by-list-item-logo`	gitter.im/images/trusted-by-logos/trusted-by-aws.png	10.4 KiB	9.5 KiB
div.testimonials-quotes > blockquote.testimonials-quote > div.testimonial-image-wrapper > img.astro-J7PV25F6 `div.testimonials-quotes > blockquote.testimonials-quote > div.testimonial-image-wrapper > img.astro-J7PV25F6`	gitter.im/images/testimonials/testimonial-krishnasrinivas.jpg	10.0 KiB	8.4 KiB
Google `ul.trusted-by-list > li.trusted-by-list-item > a.astro-J7PV25F6 > img.trusted-by-list-item-logo`	gitter.im/images/trusted-by-logos/trusted-by-google.png	8.8 KiB	7.9 KiB
Microsoft `ul.trusted-by-list > li.trusted-by-list-item > a.astro-J7PV25F6 > img.trusted-by-list-item-logo`	gitter.im/images/trusted-by-logos/trusted-by-microsoft.png	7.6 KiB	6.9 KiB
AirBnB `ul.trusted-by-list > li.trusted-by-list-item > a.astro-J7PV25F6 > img.trusted-by-list-item-logo`	gitter.im/images/trusted-by-logos/trusted-by-airbnb.png	7.3 KiB	6.4 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-12-SECTION

nodeLabel: APPS DOCUMENTATION OPEN SOURCE SIGN-IN TO START TALKING Where communities thriv…

path: 1,HTML,1,BODY,0,SECTION

selector: body > section.intro-panel

snippet: <section class="intro-panel astro-J7PV25F6">

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

value: No additional origins are good candidates for preconnecting

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
gitter.im/_astro/styleguide.6d44e7d5.css	13.2 KiB
gitter.im/_astro/index.d2ae4499.css	9.1 KiB

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

Diagnostics

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.testimonials-quotes > blockquote.testimonials-quote > div.testimonial-image-wrapper > img.astro-J7PV25F6 `div.testimonials-quotes > blockquote.testimonials-quote > div.testimonial-image-wrapper > img.astro-J7PV25F6`	gitter.im/images/testimonials/testimonial-dreadknight.jpg
section#apps > div.panel-content-wrapper > div.apps-screenshot-wrapper > img.apps-screenshot-image `section#apps > div.panel-content-wrapper > div.apps-screenshot-wrapper > img.apps-screenshot-image`	gitter.im/images/gitter-apps.png
div.testimonials-quotes > blockquote.testimonials-quote > div.testimonial-image-wrapper > img.astro-J7PV25F6 `div.testimonials-quotes > blockquote.testimonials-quote > div.testimonial-image-wrapper > img.astro-J7PV25F6`	gitter.im/images/testimonials/testimonial-samccone.jpeg
div.testimonials-quotes > blockquote.testimonials-quote > div.testimonial-image-wrapper > img.astro-J7PV25F6 `div.testimonials-quotes > blockquote.testimonials-quote > div.testimonial-image-wrapper > img.astro-J7PV25F6`	gitter.im/images/testimonials/testimonial-diasdavid.jpeg
div.testimonials-quotes > blockquote.testimonials-quote > div.testimonial-image-wrapper > img.astro-J7PV25F6 `div.testimonials-quotes > blockquote.testimonials-quote > div.testimonial-image-wrapper > img.astro-J7PV25F6`	gitter.im/images/testimonials/testimonial-doge.jpeg
div.testimonials-quotes > blockquote.testimonials-quote > div.testimonial-image-wrapper > img.astro-J7PV25F6 `div.testimonials-quotes > blockquote.testimonials-quote > div.testimonial-image-wrapper > img.astro-J7PV25F6`	gitter.im/images/testimonials/testimonial-chrisvnicholson.jpg
div.testimonials-quotes > blockquote.testimonials-quote > div.testimonial-image-wrapper > img.astro-J7PV25F6 `div.testimonials-quotes > blockquote.testimonials-quote > div.testimonial-image-wrapper > img.astro-J7PV25F6`	gitter.im/images/testimonials/testimonial-ttmc.jpg
div.testimonials-quotes > blockquote.testimonials-quote > div.testimonial-image-wrapper > img.astro-J7PV25F6 `div.testimonials-quotes > blockquote.testimonials-quote > div.testimonial-image-wrapper > img.astro-J7PV25F6`	gitter.im/images/testimonials/testimonial-krishnasrinivas.jpg
Mozilla Science Lab `ul.trusted-by-list > li.trusted-by-list-item > a.astro-J7PV25F6 > img.trusted-by-list-item-logo`	gitter.im/images/trusted-by-logos/trusted-by-mozilla-science-lab.png
Microsoft `ul.trusted-by-list > li.trusted-by-list-item > a.astro-J7PV25F6 > img.trusted-by-list-item-logo`	gitter.im/images/trusted-by-logos/trusted-by-microsoft.png
Google `ul.trusted-by-list > li.trusted-by-list-item > a.astro-J7PV25F6 > img.trusted-by-list-item-logo`	gitter.im/images/trusted-by-logos/trusted-by-google.png
AirBnB `ul.trusted-by-list > li.trusted-by-list-item > a.astro-J7PV25F6 > img.trusted-by-list-item-logo`	gitter.im/images/trusted-by-logos/trusted-by-airbnb.png
Rails `ul.trusted-by-list > li.trusted-by-list-item--smaller > a.astro-J7PV25F6 > img.trusted-by-list-item-logo`	gitter.im/images/trusted-by-logos/trusted-by-rails.png
Amazon Web Services `ul.trusted-by-list > li.trusted-by-list-item--smaller > a.astro-J7PV25F6 > img.trusted-by-list-item-logo`	gitter.im/images/trusted-by-logos/trusted-by-aws.png
Scala `ul.trusted-by-list > li.trusted-by-list-item--smaller > a.astro-J7PV25F6 > img.trusted-by-list-item-logo`	gitter.im/images/trusted-by-logos/trusted-by-scala.png
Gitter `div.header-content > div.header-full-nav > a.logo-cluster > img.logo-text-image`	gitter.im/images/logo-text-white-nomargin@2x.png

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

●Forced reflow

●LCP breakdown

●Modern HTTP

●Optimize viewport for mobile

●Time to Interactive 0.8 s

●Max Potential First Input Delay 20 ms

●Minify CSS

●Minify JavaScript

●Reduce unused CSS

●Reduce unused JavaScript

●Avoids enormous network payloads Total size was 935 KiB

●JavaScript execution time 0.0 s

●Minimizes main-thread work 0.2 s

●Avoid non-composited animations 6 animated elements found

●Page didn't prevent back/forward cache restoration

●Network Requests

●Network Round Trip Times 40 ms

●Server Backend Latencies 30 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 30 ms

●Avoid large layout shifts 15 layout shifts found

○INP breakdown

○User Timing marks and measures

○Avoid long main-thread tasks

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-IN TO START TALKING `div.panel-content-wrapper > div.intro-panel-cta-button-block > a.button--kind-primary > span.sign-in-full-text`
The Gitter webapp is available in all modern browsers, and there are a variety … `section#apps > div.panel-content-wrapper > div.apps-content-wrapper > p.apps-main-description`
GITTER WEB `div.panel-content-wrapper > div.apps-content-wrapper > p.app-button-block > a.app-button`
DOWNLOAD ELEMENT `div.panel-content-wrapper > div.apps-content-wrapper > p.app-button-block > a.app-button`
After downloading Element, be sure to specify gitter.im as the homeserver. `section#apps > div.panel-content-wrapper > div.apps-content-wrapper > p.astro-J7PV25F6`
gitter.im `div.panel-content-wrapper > div.apps-content-wrapper > p.astro-J7PV25F6 > code.astro-J7PV25F6`
Chris Nicholson `div.testimonials-quotes > blockquote.testimonials-quote > cite.testimonials-quote-citation > strong.astro-J7PV25F6`
, Deeplearning4j `div.testimonials-quotes > blockquote.testimonials-quote > cite.testimonials-quote-citation > span.testimonial-cite-descriptor`
Loved by our users `section.testimonials-panel > div.testimonials-content-wrapper > div.testimonials-content-block > h1.testimonials-heading`
Gitter is nothing without the people using it day in and day out. `section.testimonials-panel > div.testimonials-content-wrapper > div.testimonials-content-block > p.testimonials-main-description`
We need updated quotes! If you love Gitter, Tweet us @gitchat with what Gitter … `section.testimonials-panel > div.testimonials-content-wrapper > div.testimonials-content-block > p.astro-J7PV25F6`
@gitchat `div.testimonials-content-wrapper > div.testimonials-content-block > p.astro-J7PV25F6 > a.astro-J7PV25F6`
Copyright © 2025 New Vector Ltd `footer.footer-bottom > div.footer-content-wrapper > div.footer-copyright-notice > small.astro-SZ7XMLTE`
MATRIX API `div.footer-content-wrapper > ul.footer-link-list > li.footer-link-list-item > a.bottom-panel-navigation-link`
BLOG `div.footer-content-wrapper > ul.footer-link-list > li.footer-link-list-item > a.bottom-panel-navigation-link`
TWITTER `div.footer-content-wrapper > ul.footer-link-list > li.footer-link-list-item > a.bottom-panel-navigation-link`

These are opportunities to improve the legibility of your content.

Names and labels

Informative elements should aim for short, descriptive alternate text. Decorative elements can be ignored with an empty alt attribute. Learn more about the `alt` attribute.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
section#apps > div.panel-content-wrapper > div.apps-screenshot-wrapper > img.apps-screenshot-image `section#apps > div.panel-content-wrapper > div.apps-screenshot-wrapper > img.apps-screenshot-image`
div.testimonials-quotes > blockquote.testimonials-quote > div.testimonial-image-wrapper > img.astro-J7PV25F6 `div.testimonials-quotes > blockquote.testimonials-quote > div.testimonial-image-wrapper > img.astro-J7PV25F6`
div.testimonials-quotes > blockquote.testimonials-quote > div.testimonial-image-wrapper > img.astro-J7PV25F6 `div.testimonials-quotes > blockquote.testimonials-quote > div.testimonial-image-wrapper > img.astro-J7PV25F6`
div.testimonials-quotes > blockquote.testimonials-quote > div.testimonial-image-wrapper > img.astro-J7PV25F6 `div.testimonials-quotes > blockquote.testimonials-quote > div.testimonial-image-wrapper > img.astro-J7PV25F6`
div.testimonials-quotes > blockquote.testimonials-quote > div.testimonial-image-wrapper > img.astro-J7PV25F6 `div.testimonials-quotes > blockquote.testimonials-quote > div.testimonial-image-wrapper > img.astro-J7PV25F6`
div.testimonials-quotes > blockquote.testimonials-quote > div.testimonial-image-wrapper > img.astro-J7PV25F6 `div.testimonials-quotes > blockquote.testimonials-quote > div.testimonial-image-wrapper > img.astro-J7PV25F6`
div.testimonials-quotes > blockquote.testimonials-quote > div.testimonial-image-wrapper > img.astro-J7PV25F6 `div.testimonials-quotes > blockquote.testimonials-quote > div.testimonial-image-wrapper > img.astro-J7PV25F6`
div.testimonials-quotes > blockquote.testimonials-quote > div.testimonial-image-wrapper > img.astro-J7PV25F6 `div.testimonials-quotes > blockquote.testimonials-quote > div.testimonial-image-wrapper > img.astro-J7PV25F6`

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.

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-hidden="true"]` is not present on the document `<body>`

●`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.

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

●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.

●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

●Touch targets have sufficient size and spacing.

●Heading elements appear in a sequentially-descending order

●Identical links have the same purpose.

○`[accesskey]` values are unique

○`[aria-*]` attributes match their roles

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

○ARIA attributes are used as specified for the element's role

○Deprecated ARIA roles were not used

○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 use only permitted ARIA attributes

○`[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

○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

○`[aria-*]` attributes have valid values

○`[aria-*]` attributes are valid and not misspelled

○Buttons have an accessible name

○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

○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.

○Skip links are focusable.

○No element has a `[tabindex]` value greater than 0

○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.

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
cdn02.gitter.im/_s/0f349ae51/fonts/sourcesans/SourceSansPro-Regular.otf.woff	`Failed to load resource: net::ERR_NAME_NOT_RESOLVED`
cdn02.gitter.im/_s/0f349ae51/fonts/sourcesans/SourceSansPro-Semibold.otf.woff	`Failed to load resource: net::ERR_NAME_NOT_RESOLVED`
cdn03.gitter.im/_s/0f349ae51/fonts/sourcesans/SourceSansPro-Bold.otf.woff	`Failed to load resource: net::ERR_NAME_NOT_RESOLVED`

●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 clickjacking with XFO or CSP

●Mitigate DOM-based XSS with Trusted Types

●Page has valid source maps

○Redirects HTTP traffic to HTTPS

○Detected JavaScript libraries

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.

Content Best Practices

Meta descriptions may be included in search results to concisely summarize page content. Learn more about the meta description.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Descriptive link text helps search engines understand your content. Learn how to make links more accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Link destination	Link Text
matrix.org/clients/	Learn more
matrix.org/	Learn more

Informative elements should aim for short, descriptive alternate text. Decorative elements can be ignored with an empty alt attribute. Learn more about the `alt` attribute.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
section#apps > div.panel-content-wrapper > div.apps-screenshot-wrapper > img.apps-screenshot-image `section#apps > div.panel-content-wrapper > div.apps-screenshot-wrapper > img.apps-screenshot-image`
div.testimonials-quotes > blockquote.testimonials-quote > div.testimonial-image-wrapper > img.astro-J7PV25F6 `div.testimonials-quotes > blockquote.testimonials-quote > div.testimonial-image-wrapper > img.astro-J7PV25F6`
div.testimonials-quotes > blockquote.testimonials-quote > div.testimonial-image-wrapper > img.astro-J7PV25F6 `div.testimonials-quotes > blockquote.testimonials-quote > div.testimonial-image-wrapper > img.astro-J7PV25F6`
div.testimonials-quotes > blockquote.testimonials-quote > div.testimonial-image-wrapper > img.astro-J7PV25F6 `div.testimonials-quotes > blockquote.testimonials-quote > div.testimonial-image-wrapper > img.astro-J7PV25F6`
div.testimonials-quotes > blockquote.testimonials-quote > div.testimonial-image-wrapper > img.astro-J7PV25F6 `div.testimonials-quotes > blockquote.testimonials-quote > div.testimonial-image-wrapper > img.astro-J7PV25F6`
div.testimonials-quotes > blockquote.testimonials-quote > div.testimonial-image-wrapper > img.astro-J7PV25F6 `div.testimonials-quotes > blockquote.testimonials-quote > div.testimonial-image-wrapper > img.astro-J7PV25F6`
div.testimonials-quotes > blockquote.testimonials-quote > div.testimonial-image-wrapper > img.astro-J7PV25F6 `div.testimonials-quotes > blockquote.testimonials-quote > div.testimonial-image-wrapper > img.astro-J7PV25F6`
div.testimonials-quotes > blockquote.testimonials-quote > div.testimonial-image-wrapper > img.astro-J7PV25F6 `div.testimonials-quotes > blockquote.testimonials-quote > div.testimonial-image-wrapper > img.astro-J7PV25F6`

Format your HTML in a way that enables crawlers to better understand your app’s content.

○Structured data is valid

●Page isn’t blocked from indexing

●Document has a `<title>` element

●Page has successful HTTP status code

●Links are crawlable

●Document has a valid `hreflang`

○robots.txt is valid

○Document has a valid `rel=canonical`