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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.

39

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.

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:31.277 source:map[column:1.739254e+06 line:2 type:source-location url:https://www.sonarsource.com/app-9c6eb77770f79adf75fe.js 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:31.277 source:map[column:55 line:896 type:source-location url:https://www.googletagmanager.com/gtm.js?id=GTM-56V34P9 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.css-ulq815 > div.css-1lvmwq0 > picture.css-gmxnb1 > img.css-1abyffv div.css-ulq815 > div.css-1lvmwq0 > picture.css-gmxnb1 > img.css-1abyffv
/ef593040-b591-0198-9506-ed88b30bc023/328f3ae6-b976-43ee-...117.2 KiB102.9 KiB
section.css-hpd81o > div.css-9y8f5k > picture.css-gmxnb1 > img.css-nrwp77 section.css-hpd81o > div.css-9y8f5k > picture.css-gmxnb1 > img.css-nrwp77
/ef593040-b591-0198-9506-ed88b30bc023/2e9dbeed-8898-450c-...99.4 KiB96.8 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-1-IMG
nodeLabel: section.css-hpd81o > div.css-9y8f5k > picture.css-gmxnb1 > img.css-nrwp77
path: 1,HTML,1,BODY,3,DIV,0,DIV,3,MAIN,0,DIV,8,SECTION,0,DIV,0,DIV,1,DIV,0,DIV,1,SECTION,0,DIV,0,PICTURE,3,IMG
selector: section.css-hpd81o > div.css-9y8f5k > picture.css-gmxnb1 > img.css-nrwp77
snippet: <img decoding="async" alt="" loading="eager" srcset="https://assets-eu-01.kc-usercontent.com:443/ef593040-b591-0198-9506-ed88b3…" width="2240" height="1260" class="css-nrwp77 ed0xv1y0">

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

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.

URLTransfer SizeDuration
js.navattic.com/embeds.js6.2 KiB823 ms

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

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: 811 ms
URLTime Spent
sonarsource.com/811 ms
www.sonarsource.com/0.0 ms

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 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 Evaluation3.2 s
Other1.5 s
Style & Layout712 ms
Script Parsing & Compilation500 ms
Parse HTML & CSS151 ms
Rendering115 ms
Garbage Collection105 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
Agence du numerique section.css-11zbd2v > div.css-1cpeu6j > div.css-19opb5f > img.css-f67dlp
/ef593040-b591-0198-9506-ed88b30bc023/dabbf337-da10-4f88-...
Close Icon div.css-6ad4n0 > div.css-16tbzyi > button > img
www.sonarsource.com/assets/close.svg
language switcher div#language-switcher > div.react-select__control > div.css-tj0ab2 > img
www.sonarsource.com/assets/icon_language.svg

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
Optimize viewport for mobile
Minify CSS
Minify JavaScript
Reduce unused CSS
User Timing marks and measures 11 user timings
Avoid long main-thread tasks 20 long tasks found
Avoid non-composited animations 5 animated elements found
Page didn't prevent back/forward cache restoration
Network Requests
Network Round Trip Times 60 ms
Server Backend Latencies 60 ms
Tasks
Diagnostics
Metrics
Screenshot Thumbnails
Final Screenshot
Script Treemap Data
Resources Summary
Initial server response time was short Root document took 50 ms
Avoid large layout shifts 1 layout shift found
INP breakdown
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.

ARIA

Each ARIA `role` supports a specific subset of `aria-*` attributes. Mismatching these invalidates the `aria-*` attributes. Learn how to match ARIA attributes to their roles.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Blog posts div.css-1faybyd > div.css-mth73k > div.css-18g6cpo > button.css-qdf17c
News div.css-1faybyd > div.css-mth73k > div.css-18g6cpo > button.css-qdf17c
Learn articles div.css-1faybyd > div.css-mth73k > div.css-18g6cpo > button.css-qdf17c

Some ARIA parent roles must contain specific child roles to perform their intended accessibility functions. Learn more about roles and required children elements.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Products SonarQube products SonarQube Cloud Cloud-based static analysis tool fo… nav.css-1fp82pj > ul.css-b5wfk1 > li.css-1j936iw > div.css-1r874ck
Why Sonar Use cases AI code quality Validate AI code for security and quality D… nav.css-1fp82pj > ul.css-b5wfk1 > li.css-1j936iw > div.css-1r874ck
Developers For developers Developer hub Learning center Commitment to open sour… nav.css-1fp82pj > ul.css-b5wfk1 > li.css-1j936iw > div.css-1r874ck
Resources Get started Onboarding hub Learning center Interactive demos Communit… nav.css-1fp82pj > ul.css-b5wfk1 > li.css-1j936iw > div.css-1r874ck
Company Learn about Sonar About Us Our customers Partners Events hub Newsroom C… nav.css-1fp82pj > ul.css-b5wfk1 > li.css-1y53taa > div.css-1r874ck

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.

Navigation

A value greater than 0 implies an explicit navigation ordering. Although technically valid, this often creates frustrating experiences for users who rely on assistive technologies. Learn more about the `tabindex` attribute.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Code quality div.swiper > div.swiper-wrapper > div.swiper-slide > li#tab:R1agrah:0
SAST div.swiper > div.swiper-wrapper > div.swiper-slide > li#tab:R1agrah:1
Secrets Detection div.swiper > div.swiper-wrapper > div.swiper-slide > li#tab:R1agrah:2
SCA div.swiper > div.swiper-wrapper > div.swiper-slide > li#tab:R1agrah:3
Code Review div.swiper > div.swiper-wrapper > div.swiper-slide > li#tab:R1agrah:4
AI CodeFix div.swiper > div.swiper-wrapper > div.swiper-slide > li#tab:R1agrah:5
Architecture div.swiper > div.swiper-wrapper > div.swiper-slide > li#tab:R1agrah:6

These are opportunities to improve keyboard navigation in your application.

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
Control item 0 section.css-1lxt3h6 > div.css-167fs54 > div.css-13n7hpy > button.css-1b2yhzm
Control item 1 section.css-1lxt3h6 > div.css-167fs54 > div.css-13n7hpy > button.css-17t6fdk
Control item 2 section.css-1lxt3h6 > div.css-167fs54 > div.css-13n7hpy > button.css-17t6fdk
Control item 3 section.css-1lxt3h6 > div.css-167fs54 > div.css-13n7hpy > button.css-17t6fdk
Website Terms of Use div.css-1go16d5 > ul.css-6w0507 > li.css-1dsq0w7 > a.e1u9akvp0
Privacy Notice div.css-1go16d5 > ul.css-6w0507 > li.css-1dsq0w7 > a.e1u9akvp0
Cookie Policy div.css-1go16d5 > ul.css-6w0507 > li.css-1dsq0w7 > a.e1u9akvp0
Trust center div.css-1go16d5 > ul.css-6w0507 > li.css-1dsq0w7 > a.e1u9akvp0
Your Privacy Choices div.css-1go16d5 > ul.css-6w0507 > li.css-1dsq0w7 > button.e1u9akvp0
UK Modern Slavery Act Statement div.css-1go16d5 > ul.css-6w0507 > li.css-1dsq0w7 > a.e1u9akvp0
Unsubscribe div.css-1go16d5 > ul.css-6w0507 > li.css-1dsq0w7 > button.e1u9akvp0
Accessibility div.css-1go16d5 > ul.css-6w0507 > li.css-1dsq0w7 > button.e1u9akvp0

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
4 nav.css-1fp82pj > div.css-umsyth > div.css-79elbk > button.css-agl5in
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>`
`[role]`s have all required `[aria-*]` attributes
`[role]`s are contained by their required parent element
`[role]` values are valid
`[aria-*]` attributes have valid values
`[aria-*]` attributes are valid and not misspelled
Buttons have an accessible name
Image elements have `[alt]` attributes
Form elements have associated labels
`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
`[accesskey]` values are unique
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
`<html>` element has a `[lang]` attribute
`<html>` element has a valid value for its `[lang]` attribute
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
`[lang]` attributes have a valid value
Heading elements appear in a sequentially-descending order
Document has a main landmark.
Deprecated ARIA roles were not used
Image elements do not have `[alt]` attributes that are redundant text.
Identical links have the same purpose.
`button`, `link`, and `menuitem` elements have accessible names
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 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
Links are distinguishable without relying on color.
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.
`<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
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.
73

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.

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
about:srcdoc line 1, col 0
Executing inline script violates the following Content Security Policy directive 'script-src 'nonce-ECVwgDQthpGrzvtCectjm2IO5EPIIKnO' 'unsafe-eval' 'strict-dynamic' 'unsafe-inline' 'self' https: http:'. Note that 'unsafe-inline' is ignored if either a hash or nonce value is present in the source list. The action has been blocked.

Issues logged to the `Issues` panel in Chrome Devtools indicate unresolved problems. They can come from network request failures, insufficient security controls, and other browser concerns. Open up the Issues panel in Chrome DevTools for more details on each issue.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Issue type
Content security policy
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
Ensure CSP is effective against XSS attacks
Ensure proper origin isolation with COOP
Mitigate DOM-based XSS with Trusted Types
Detected JavaScript libraries
Page has valid source maps
Redirects HTTP traffic to HTTPS
Use a strong HSTS policy
Mitigate clickjacking with XFO or CSP
92

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.

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
Image elements have `[alt]` attributes
Document has a valid `hreflang`
Document has a valid `rel=canonical`

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