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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.

67

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
kde.org/content/people/2025/scale.jpg1209600.0 s2.1 MiB
kde.org/content/people/2025/GroupPhotoAkademy2025-25.jpg1209600.0 s2.1 MiB
kde.org/for/students/background.png1209600.0 s1.6 MiB
kde.org/content/people/2025/conf.kde.in.jpg1209600.0 s1.1 MiB
kde.org/content/develop/devapps-light.png1209600.0 s984.7 KiB
kde.org/content/hardware/steam-deck-large.png1209600.0 s921.4 KiB
kde.org/for/activists/pexels-vincent-ma-janssen-2561628.jpg1209600.0 s810.6 KiB
kde.org/announcements/plasma/6/6.6.0/fullscreen_with_apps.png1209600.0 s778.4 KiB
cdn.kde.org/screenshots/marknote/marknote.png1209600.0 s721.9 KiB
kde.org/content/people/2025/kdenlive_sprint.jpg1209600.0 s688.5 KiB
kde.org/for/resources/nasa-mars-mission.jpg1209600.0 s624.1 KiB
cdn.kde.org/screenshots/gcompris/gcompris.png1209600.0 s583.1 KiB
kde.org/for/w10-exiles/exile01_1080p.jpg1209600.0 s429.8 KiB
kde.org/content/hardware/slimbook_800.png1209600.0 s352.5 KiB
kde.org/content/hardware/tuxedo_800.png1209600.0 s341.7 KiB
kde.org/anniversaries/30/30Konqi_1500.png1209600.0 s295.6 KiB
kde.org/for/travelers/background.webp1209600.0 s295.0 KiB
kde.org/content/people/2025/fossasia.jpg1209600.0 s284.1 KiB
kde.org/content/people/2025/fosdem2025.jpg1209600.0 s235.0 KiB
kde.org/content/hardware/kfocus.png1209600.0 s231.8 KiB
cdn.kde.org/screenshots/kdevelop/kdevelop.png1209600.0 s229.1 KiB
kde.org/content/people/2025/indiafoss.jpg1209600.0 s220.7 KiB
cdn.kde.org/screenshots/kmail/kmail.png1209600.0 s191.1 KiB
kde.org/content/hardware/steam-deck-small.png1209600.0 s181.0 KiB
kde.org/content/people/2025/akademy-es.jpg1209600.0 s156.5 KiB
kde.org/content/people/2025/las.jpg1209600.0 s152.2 KiB
kde.org/images/logos/QtGroup.png1209600.0 s73.6 KiB
kde.org/images/logos/techpaladin.png1209600.0 s59.9 KiB
kde.org/images/logos/kfocus.png1209600.0 s55.8 KiB
/scss/bootstrap.9501887618154b4858a2493cfb915a1b6d7b5b0c0...604800.0 s39.0 KiB
kde.org/js/swiper-bundle.min.js604800.0 s37.1 KiB
kde.org/for/resources/sonny.webp1209600.0 s36.2 KiB
stats.kde.org/matomo.js604800.0 s21.7 KiB
/js/bundle.min.5e0dd03e1815922423a429c2876e5279246e82987a...604800.0 s15.9 KiB
kde.org/css/swiper-bundle.min.css604800.0 s4.4 KiB
/scss/index.min.89953f6f40218be19eac4ddc0ec8e67a39cb0da08...604800.0 s2.5 KiB
kde.org/images/logos/blue-systems.png1209600.0 s1.8 KiB
kde.org/aether/languages.png1209600.0 s881 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.

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.

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
KDE For Students Study with KDE div.swiper > div#swiper-wrapper-4dc2c272c63da2f1 > div.swiper-slide > a.product
kde.org/for/students/background.png1.6 MiB1.4 MiB
Plasma div.laptop-with-overlay > div.laptop-overlay > picture > img.img-fluid
kde.org/announcements/plasma/6/6.6.0/fullscreen_with_apps.png778.0 KiB755.0 KiB
KDE for Gamers Enjoy your games on Plasma and Linux div.swiper > div#swiper-wrapper-4dc2c272c63da2f1 > div.swiper-slide > a.product
kde.org/content/hardware/steam-deck-large.png920.9 KiB752.9 KiB
Marknote screenshot div.pb-5 > div.row > a.col-12 > img.img-fluid
cdn.kde.org/screenshots/marknote/marknote.png720.4 KiB683.9 KiB
KDE for Developers For Developers Using KDE Applications. div.swiper > div#swiper-wrapper-4dc2c272c63da2f1 > div.swiper-slide > a.product
kde.org/content/develop/devapps-light.png984.1 KiB656.5 KiB
KDE for Activists Fight the Power Using KDE Applications. div.swiper > div#swiper-wrapper-4dc2c272c63da2f1 > div.swiper-slide > a.product
kde.org/for/activists/pexels-vincent-ma-janssen-2561628.jpg810.1 KiB410.1 KiB
KDE Slimbook div.hardware-grid > div.slimbook-img > a > img
kde.org/content/hardware/slimbook_800.png352.3 KiB318.8 KiB
Tuxedo Computers div.hardware-grid > div.tuxedo > a > img
kde.org/content/hardware/tuxedo_800.png341.4 KiB303.9 KiB
div.row > div.col > a > img div.row > div.col > a > img
kde.org/anniversaries/30/30Konqi_1500.png295.4 KiB293.6 KiB
KDE for Kids KDE provides a wide array of applications for children covering b… div.swiper > div#swiper-wrapper-4dc2c272c63da2f1 > div.swiper-slide > a.product
cdn.kde.org/screenshots/gcompris/gcompris.png581.9 KiB244.4 KiB
KDE for Travelers Travel the World Using KDE Applications div.swiper > div#swiper-wrapper-4dc2c272c63da2f1 > div.swiper-slide > a.product
kde.org/for/travelers/background.webp294.8 KiB216.6 KiB
KDE for Scientists Our best open-source tools for scientists and researchers. div.swiper > div#swiper-wrapper-4dc2c272c63da2f1 > div.swiper-slide > a.product
kde.org/for/resources/nasa-mars-mission.jpg623.7 KiB210.9 KiB
Kubuntu Focus div.hardware-grid > div.focus > a > img
kde.org/content/hardware/kfocus.png231.6 KiB200.4 KiB
KDevelop Screenshot div.pb-5 > div.row > a.col-12 > img.img-fluid
cdn.kde.org/screenshots/kdevelop/kdevelop.png228.3 KiB184.1 KiB
Kontact Screenshot div.pb-5 > div.row > a.col-12 > img.img-fluid
cdn.kde.org/screenshots/kmail/kmail.png190.4 KiB158.3 KiB
Steam Deck div.hardware-grid > div.steam-deck > a > img
kde.org/content/hardware/steam-deck-small.png180.8 KiB152.8 KiB
KDE for Windows 10 Exiles Upgrade your software, not your computer div.swiper > div#swiper-wrapper-4dc2c272c63da2f1 > div.swiper-slide > a.product
kde.org/for/w10-exiles/exile01_1080p.jpg429.5 KiB138.9 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

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: 710 ms 35.4 KiB
URLTransfer SizeEst Savings
/scss/bootstrap.9501887618154b4858a2493cfb915a1b6d7b5b0c0...38.9 KiB35.4 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.

Estimated savings: 0.0 ms 22.4 KiB
URLTransfer SizeEst Savings
kde.org/js/swiper-bundle.min.js37.0 KiB22.4 KiB

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
Other1.1 s
Style & Layout453 ms
Script Evaluation303 ms
Rendering262 ms
Parse HTML & CSS53 ms
Script Parsing & Compilation36 ms

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.row > div.col > a > img div.row > div.col > a > img
kde.org/anniversaries/30/30Konqi_1500.png
Kontact Screenshot div.pb-5 > div.row > a.col-12 > img.img-fluid
cdn.kde.org/screenshots/kmail/kmail.png
Marknote screenshot div.pb-5 > div.row > a.col-12 > img.img-fluid
cdn.kde.org/screenshots/marknote/marknote.png
KDevelop Screenshot div.pb-5 > div.row > a.col-12 > img.img-fluid
cdn.kde.org/screenshots/kdevelop/kdevelop.png
KDE Slimbook div.hardware-grid > div.slimbook-img > a > img
kde.org/content/hardware/slimbook_800.png
Tuxedo Computers div.hardware-grid > div.tuxedo > a > img
kde.org/content/hardware/tuxedo_800.png
Kubuntu Focus div.hardware-grid > div.focus > a > img
kde.org/content/hardware/kfocus.png
Steam Deck div.hardware-grid > div.steam-deck > a > img
kde.org/content/hardware/steam-deck-small.png
Plasma div.laptop-with-overlay > div.laptop-overlay > picture > img.img-fluid
kde.org/announcements/plasma/6/6.6.0/fullscreen_with_apps.png
body > img body > img
stats.kde.org/matomo.php?idsite=1&rec=1
div.row > div.col-lg-5 > a.mx-auto > img.img-fluid div.row > div.col-lg-5 > a.mx-auto > img.img-fluid
Canonical section#kPatrons > div.d-flex > span > img.canonical
Google section#kPatrons > div.d-flex > span > img.google
SUSE section#kPatrons > div.d-flex > span > img.suse
The Qt Company section#kPatrons > div.d-flex > span > img.qt
Blue System section#kPatrons > div.d-flex > span > img.blue-systems
Slimbook section#kPatrons > div.d-flex > span > img.slimbook
TUXEDO Computers section#kPatrons > div.d-flex > span > img.tuxedo
KFocus section#kPatrons > div.d-flex > span > img.kfocus
GnuPG section#kPatrons > div.d-flex > span > img.gnupg
MBition section#kPatrons > div.d-flex > span > img.mbition
Techpaladin section#kPatrons > div.d-flex > span > img.techpaladin
Rocky Linux section#kPatrons > div.d-flex > span > img.rockylinux
Framework section#kPatrons > div.d-flex > span > img.framework

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

Max Potential First Input Delay 90 ms
Layout shift culprits
Document request latency
Optimize DOM size
Forced reflow
LCP breakdown
Modern HTTP
Optimize viewport for mobile
Minify CSS
Minify JavaScript
JavaScript execution time 0.3 s
Avoid long main-thread tasks 4 long tasks found
Page didn't prevent back/forward cache restoration
Network Requests
Network Round Trip Times 390 ms
Server Backend Latencies 430 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 420 ms
Avoid large layout shifts 1 layout shift found
INP breakdown
LCP request discovery
User Timing marks and measures
Avoid non-composited animations
78

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.

ARIA

Focusable descendents within an `[aria-hidden="true"]` element prevent those interactive elements from being available to users of assistive technologies like screen readers. Learn how `aria-hidden` affects focusable elements.

Why this matters

Informational: a Permissions-Policy directive showing feature -> allowed origins.

Source: MDN Permissions-Policy

Failing Elements
div.container > div.row > div.col-lg-5 > a.mx-auto div.container > div.row > div.col-lg-5 > a.mx-auto

These are opportunities to improve the usage of ARIA in your application which 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
Join the fun here div.container > div.row > div.col-auto > a.button
Learn More section > div.container > div.mb-3 > a.button
Get Involved section > div.container > div.mb-3 > a.noblefir
Install on your computer section.text-center > div.container > div.text-center > a.learn-more
Germany div.row > div.col-12 > div.text-muted > span.badge
Canada div.row > div.col-12 > div.text-muted > span.badge
Austria div.row > div.col-12 > div.text-muted > span.badge
Brazil div.row > div.col-12 > div.text-muted > span.badge
Maintained by KDE Webmasters (public mailing list). Generated from 60d4cce. footer#kFooter > div#kLegal > p.d-block > small.maintenance
KDE® and the K Desktop Environment® logo are registered trademarks of KDE e.V. … footer#kFooter > div#kLegal > p.d-block > small.trademark

Low-contrast text is difficult or impossible for many users to read. Link text that is discernible improves the experience for users with low vision. Learn how to make links distinguishable.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
See all devices section > div.container > p > a
Why Donate? div#kDonateForm > div.center > h2.h5 > a
KDE Webmasters div#kLegal > p.d-block > small.maintenance > a
60d4cce div#kLegal > p.d-block > small.maintenance > a

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
div.row > div.col > a > img div.row > div.col > a > img

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.container > div.row > div.col > a div.container > div.row > div.col > a
body > footer#kFooter > div#kSocial > a body > footer#kFooter > div#kSocial > a

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

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.for-you-carousel > div.swiper > div.swiper-pagination > span.swiper-pagination-bullet
Go to slide 2 div.for-you-carousel > div.swiper > div.swiper-pagination > span.swiper-pagination-bullet
Go to slide 3 div.for-you-carousel > div.swiper > div.swiper-pagination > span.swiper-pagination-bullet
Go to slide 4 div.for-you-carousel > div.swiper > div.swiper-pagination > span.swiper-pagination-bullet
Go to slide 5 div.for-you-carousel > div.swiper > div.swiper-pagination > span.swiper-pagination-bullet
Go to slide 6 div.for-you-carousel > div.swiper > div.swiper-pagination > span.swiper-pagination-bullet
Go to slide 7 div.for-you-carousel > div.swiper > div.swiper-pagination > span.swiper-pagination-bullet
Go to slide 8 div.for-you-carousel > div.swiper > div.swiper-pagination > span.swiper-pagination-bullet
Go to slide 9 div.for-you-carousel > div.swiper > div.swiper-pagination > span.swiper-pagination-bullet
Go to slide 10 div.for-you-carousel > div.swiper > 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
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
Elements use only permitted ARIA attributes
Document has a `<title>` element
`<html>` element has a `[lang]` attribute
`<html>` element has a valid value for its `[lang]` attribute
No element has a `[tabindex]` value greater than 0
`[lang]` attributes have a valid value
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
`<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
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements
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.
`<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.
100

Best Practices

Uses HTTPS
Avoids deprecated APIs
Avoids third-party cookies
Allows users to paste into input fields
Avoids requesting the geolocation permission on page load
Avoids requesting the notification permission on page load
Displays images with correct aspect ratio
Serves images with appropriate resolution
Page has the HTML doctype
Properly defines charset
No browser errors logged to the console
No issues in the `Issues` panel in Chrome Devtools
Ensure CSP is effective against XSS attacks
Use a strong HSTS policy
Ensure proper origin isolation with COOP
Mitigate DOM-based XSS with Trusted Types
Page has valid source maps
Redirects HTTP traffic to HTTPS
Mitigate clickjacking with XFO or CSP
Detected JavaScript libraries
85

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

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.

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
div.row > div.col > a > img div.row > div.col > a > img

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
Document has a meta description
Page has successful HTTP status code
Links are crawlable
robots.txt is valid
Document has a valid `hreflang`
Document has a valid `rel=canonical`

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