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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.

88

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.wampserver.com/wp-content/themes/wampserver/img/illustration-contrib.png0.0 ms167.1 KiB
www.wampserver.com/wp-content/themes/wampserver/img/fond_download.png0.0 ms104.5 KiB
www.wampserver.com/wp-content/themes/wampserver/img/picto-sprite.png0.0 ms72.2 KiB
www.wampserver.com/wp-content/themes/wampserver/img/bg-header.png0.0 ms56.7 KiB
www.wampserver.com/wp-content/themes/wampserver/img/pingouin.png0.0 ms54.6 KiB
www.wampserver.com/wp-content/themes/wampserver/img/bg-begin-repeat.jpg0.0 ms37.4 KiB
www.wampserver.com/wp-content/themes/wampserver/img/bloc-don.png0.0 ms33.7 KiB
www.wampserver.com/wp-content/themes/wampserver/img/bg-wall-repeat.jpg0.0 ms18.8 KiB
www.wampserver.com/wp-content/themes/wampserver/img/bg-dl-repeat.jpg0.0 ms17.5 KiB
www.wampserver.com/wp-content/themes/wampserver/img/logo.png0.0 ms9.7 KiB
www.wampserver.com/wp-includes/css/dist/block-library/style.min.css?ver=5.4.190.0 ms7.1 KiB
www.wampserver.com/wp-content/themes/wampserver/img/divider.png0.0 ms6.6 KiB
www.wampserver.com/wp-content/themes/wampserver/js/jquery.fancybox-1.3.4.pack.js0.0 ms5.3 KiB
www.wampserver.com/wp-content/themes/wampserver/img/btn-dl.png0.0 ms5.1 KiB
www.wampserver.com/wp-content/themes/wampserver/css/wampserver.css0.0 ms5.1 KiB
www.wampserver.com/wp-includes/js/wp-emoji-release.min.js?ver=5.4.190.0 ms4.3 KiB
/wp-content/themes/wampserver/js/localscroll/jquery.scrol...0.0 ms2.9 KiB
www.wampserver.com/wp-content/themes/wampserver/img/decouvrirwamp.png0.0 ms2.5 KiB
www.wampserver.com/wp-content/themes/wampserver/img/bg-title-dark.png0.0 ms2.5 KiB
www.wampserver.com/wp-content/themes/wampserver/img/vertical-divider.png0.0 ms2.3 KiB
www.wampserver.com/wp-content/themes/wampserver/img/petitfondgris.png0.0 ms1.9 KiB
www.wampserver.com/wp-content/themes/wampserver/img/ovirt-16.png0.0 ms1.8 KiB
www.wampserver.com/wp-content/themes/wampserver/js/jquery.feedback.js0.0 ms1.6 KiB
connect.facebook.net/fr_FR/all.js#xfbml=1&appId=2731286494481331200.0 s1.8 KiB
/wp-content/plugins/sitepress-multilingual-cms/res/css/la...0.0 ms1.4 KiB
www.wampserver.com/wp-content/themes/wampserver/img/tab_arrow.png0.0 ms1.4 KiB
/wp-content/themes/wampserver/js/NewYearCard2014/lib/jque...0.0 ms1.3 KiB
www.wampserver.com/wp-content/themes/wampserver/img/sprite_onglet.png0.0 ms1.2 KiB
www.wampserver.com/wp-content/themes/wampserver/img/light-divider.png0.0 ms1.1 KiB
/wp-content/themes/wampserver/js/NewYearCard2014/js/jquer...0.0 ms1.0 KiB
/wp-content/plugins/lightbox-plus/css/shadowed/colorbox.m...0.0 ms1022 B
www.wampserver.com/wp-content/themes/wampserver/js/localscroll/jquery.nav.min.js0.0 ms948 B
www.wampserver.com/wp-content/themes/wampserver/css/colorbox.css0.0 ms916 B
www.wampserver.com/wp-includes/js/wp-embed.min.js?ver=5.4.190.0 ms857 B
www.wampserver.com/wp-content/plugins/wp-polls/polls-css.css?ver=2.75.50.0 ms814 B
/wp-content/plugins/contact-form-7/includes/css/styles.cs...0.0 ms766 B
/wp-content/plugins/sitepress-multilingual-cms/res/js/sit...0.0 ms594 B
www.wampserver.com/wp-content/themes/wampserver/js/lancement.js0.0 ms574 B
www.wampserver.com/wp-content/themes/wampserver/js/telechargement.js0.0 ms555 B
www.wampserver.com/wp-content/themes/wampserver/img/dark-bullet.png0.0 ms551 B
www.wampserver.com/wp-content/themes/wampserver/style.css0.0 ms351 B
/wp-content/themes/wampserver/js/NewYearCard2014/css/NewY...0.0 ms347 B

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#home > div#home-inner > div#home-group > div.wamp_character div#home > div#home-inner > div#home-group > div.wamp_character
www.wampserver.com/wp-content/themes/wampserver/img/illustration-contrib.png166.8 KiB113.9 KiB
TÉLÉCHARGEMENTS WampServer est disponible gratuitement (sous licence GPL) en d… div#page > div#download-wrapper > div.ancre > div#download
www.wampserver.com/wp-content/themes/wampserver/img/fond_download.png104.2 KiB70.2 KiB
div#download > div#download-inner > div#download-group > div.picto div#download > div#download-inner > div#download-group > div.picto
www.wampserver.com/wp-content/themes/wampserver/img/picto-sprite.png72.0 KiB61.2 KiB
CRÉDITS Auteur : Romain Bourdon Mainteneur / Roadmap : Dominique Ottello Modéra… div#footer-wrapper > div.ancre > div#footer > div#footer-inner
www.wampserver.com/wp-content/themes/wampserver/img/bloc-don.png33.4 KiB25.8 KiB
div#formations > div#formations-inner > div#formations-group > div.wamp_character div#formations > div#formations-inner > div#formations-group > div.wamp_character
www.wampserver.com/wp-content/themes/wampserver/img/pingouin.png54.4 KiB23.1 KiB
ENGLISH, РУССКИЙ DÉMARRER TÉLÉCHARGER FORMATION FORUM HÉBERGEMENT CLOUD body.home > div#header
www.wampserver.com/wp-content/themes/wampserver/img/bg-header.png56.4 KiB19.6 KiB
Wamp Server div#header-group > div#logo > a.home > img
www.wampserver.com/wp-content/themes/wampserver/img/logo.png9.5 KiB4.7 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-7-DIV
nodeLabel: DÉMARRER AVEC WAMPSERVER Comme vous allez le voir, WampServer s’installe facil…
path: 1,HTML,1,BODY,3,DIV,2,DIV,0,DIV,0,DIV
selector: div#page > div#begin-wrapper > div.ancre > div#begin
snippet: <div id="begin" class="block">

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
www.wampserver.com/wp-content/themes/wampserver/css/wampserver.css5.1 KiB151 ms
www.wampserver.com/wp-content/themes/wampserver/css/colorbox.css916 B
www.wampserver.com/wp-content/themes/wampserver/js/lancement.js574 B
www.wampserver.com/wp-content/themes/wampserver/js/jquery.fancybox-1.3.4.pack.js5.3 KiB151 ms
www.wampserver.com/wp-content/themes/wampserver/js/localscroll/jquery.nav.min.js948 B
www.wampserver.com/wp-content/themes/wampserver/js/telechargement.js555 B
/wp-content/themes/wampserver/js/localscroll/jquery.scrol...2.9 KiB
www.wampserver.com/wp-content/themes/wampserver/js/jquery.feedback.js1.6 KiB
/wp-content/plugins/sitepress-multilingual-cms/res/js/sit...594 B
/wp-content/plugins/lightbox-plus/css/shadowed/colorbox.m...1022 B
www.wampserver.com/wp-content/plugins/wp-polls/polls-css.css?ver=2.75.5814 B
/wp-content/plugins/contact-form-7/includes/css/styles.cs...766 B
ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js33.2 KiB914 ms
www.wampserver.com/wp-includes/css/dist/block-library/style.min.css?ver=5.4.197.1 KiB
www.wampserver.com/wp-content/themes/wampserver/style.css351 B
/wp-content/plugins/sitepress-multilingual-cms/res/css/la...1.4 KiB151 ms

Tap interactions may be delayed by up to 300 ms if the viewport is not optimized for mobile.

Why this matters

Performance issues directly impact user engagement and conversion rates.
head > meta head > meta

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 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: 300 ms 316.1 KiB
URLTransfer SizeEst Savings
www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js361.8 KiB242.2 KiB
connect.facebook.net/fr_FR/all.js?hash=90dd75f125d41f77fc05070a2cbe36fa82.5 KiB53.7 KiB
ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js32.6 KiB20.1 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
Wamp Server div#header-group > div#logo > a.home > img
www.wampserver.com/wp-content/themes/wampserver/img/logo.png
div#footer-inner > div#footer-group > p.bottom > img.ovirt div#footer-inner > div#footer-group > p.bottom > img.ovirt
www.wampserver.com/wp-content/themes/wampserver/img/ovirt-16.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
●Font display
●Forced reflow
●LCP breakdown
●Modern HTTP
●Minify CSS
●Minify JavaScript
●Reduce unused CSS
●Avoids enormous network payloads Total size was 1,133 KiB
●JavaScript execution time 0.5 s
●Minimizes main-thread work 1.0 s
●Avoid long main-thread tasks 5 long tasks found
●Page didn't prevent back/forward cache restoration
●Network Requests
●Network Round Trip Times 40 ms
●Server Backend Latencies 140 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 580 ms
○INP breakdown
○User Timing marks and measures
○Avoid non-composited animations
○Avoid large layout shifts
98

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.

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>`
●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.
●`[aria-hidden="true"]` elements do not contain focusable descendents
●Background and foreground colors have a sufficient contrast ratio
●`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
●Definition list items are wrapped in `<dl>` elements
●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
○`[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
○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.
○Identical links have the same purpose.
○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.
65

Best Practices

Trust and Safety

All sites should be protected with HTTPS, even ones that don't handle sensitive data. This includes avoiding mixed content, where some resources are loaded over HTTP despite the initial request being served over HTTPS. HTTPS prevents intruders from tampering with or passively listening in on the communications between your app and your users, and is a prerequisite for HTTP/2 and many new web platform APIs. Learn more about HTTPS.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Insecure URLRequest Resolution
fonts.googleapis.com/css?family=RationaleBlocked
s7.addthis.com/js/250/addthis_widget.jsBlocked

User Experience

Image natural dimensions should be proportional to the display size and the pixel ratio to maximize image clarity. Learn how to provide responsive images.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLDisplayed sizeActual sizeExpected size
Wamp Server div#header-group > div#logo > a.home > img
www.wampserver.com/wp-content/themes/wampserver/img/logo.png351 x 85351 x 85527 x 128

Browser Compatibility

Specifying a doctype prevents the browser from switching to quirks-mode. Learn more about the doctype declaration.

Why this matters

Performance issues directly impact user engagement and conversion rates.

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.

SourceDescription
www.wampserver.com/
Mixed Content: The page at 'https://www.wampserver.com/' was loaded over HTTPS, but requested an insecure script 'http://s7.addthis.com/js/250/addthis_widget.js'. This request has been blocked; the content must be served over HTTPS.
www.wampserver.com/ line 11, col 0
Mixed Content: The page at 'https://www.wampserver.com/' was loaded over HTTPS, but requested an insecure stylesheet 'http://fonts.googleapis.com/css?family=Rationale'. This request has been blocked; the content must be served over HTTPS.
www.wampserver.com/ line 871, col 24
TypeError: $(...).colorbox is not a function at HTMLDocument.<anonymous> (https://www.wampserver.com/:872:25) at n (https://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js:2:14784) at Object.fireWith (https://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js:2:15553) at e.ready (https://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js:2:9773) at HTMLDocument.B (https://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js:2:14348)

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
Mixed content
●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
●Properly defines charset
●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
●Detected JavaScript libraries
●Page has valid source maps
○Redirects HTTP traffic to HTTPS
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

hreflang links tell search engines what version of a page they should list in search results for a given language or region. Learn more about `hreflang`.

Why this matters

Performance issues directly impact user engagement and conversion rates.
head > link
head > link

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 have descriptive text
●Links are crawlable
●robots.txt is valid
●Image elements have `[alt]` attributes
●Document has a valid `rel=canonical`

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