Lighthouse Mobile

· 0 checks — Mobile 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.

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
melenchon2027.fr/wp-content/uploads/2026/04/LogoTortue.svg	14400.0 s	1.4 MiB
matomo.lafranceinsoumise.fr/piwik.js	3600.0 s	40.8 KiB
i.ytimg.com/vi_webp/Zom5H1bCiZE/sddefault.webp	7200.0 s	34.4 KiB
melenchon2027.fr/wp-content/uploads/2024/01/LOGO-M27.svg	14400.0 s	18.5 KiB
/cdn-cgi/challenge-platform/h/g/scripts/jsd/fe6331af5207/...	14400.0 s	10.6 KiB
kit.fontawesome.com/623e7dea16.js?ver=4.0.4	60.0 s	5.7 KiB
i.ytimg.com/vi_webp/Zom5H1bCiZE/default.webp	7200.0 s	4.0 KiB
/tXZH55ecH2CSfAx7leTc0bjfY-hf-ts1skBZQpVEqgHhNgEIKihafcWz...	86400.0 s	3.6 KiB
static.doubleclick.net/instream/ad_status.js	900.0 s	495 B
melenchon2027.fr/cdn-cgi/scripts/5c5dd728/cloudflare-static/email-decode.min.js	172792.0 s	1.0 KiB
/plugins/HeatmapSessionRecording/configs.php?idsite=33&tr...	0.0 ms	257 B
/p.css?s=1&k=rrw2zxe&ht=tk&f=24536.24553.24554.24555.2455...	604800.0 s	346 B
static.doubleclick.net/instream/ad_status.js	900.0 s	0 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
fonts.gstatic.com/s/roboto/v48/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff2	55 ms
melenchon2027.fr/wp-content/uploads/2026/04/StackSansText-Bold.ttf	30 ms
melenchon2027.fr/wp-content/uploads/2026/04/StackSansText-Regular.ttf	30 ms
melenchon2027.fr/wp-content/uploads/2026/04/union_gothic-variable.ttf	30 ms
melenchon2027.fr/wp-content/uploads/2026/04/StackSansText-Light.ttf	30 ms
ka-p.fontawesome.com/releases/v7.2.0/webfonts/pro-fa-regular-400-0.woff2	30 ms
ka-p.fontawesome.com/releases/v7.2.0/webfonts/pro-fa-slab-regular-400-0.woff2	25 ms
ka-p.fontawesome.com/releases/v7.2.0/webfonts/pro-fa-slab-regular-400-1.woff2	25 ms

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:37.047 source:map[column:29740 line:1 type:source-location url:https://melenchon2027.fr/wp-content/plugins/elementor/assets/js/frontend.min.js?ver=4.0.7 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:37.047 source:map[column:31062 line:0 type:source-location url:https://melenchon2027.fr/wp-content/plugins/elementor/assets/js/frontend.min.js?ver=4.0.7 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.

	URL	Resource Size	Est Savings
Montage de quatre photos de groupe lors de rassemblements politiques avec Jean-… `div.elementor-element > div.e-con-inner > div.elementor-element > img.attachment-large`	melenchon2027.fr/wp-content/uploads/2026/05/Photos-JLM-groupe4.png	503.8 KiB	466.0 KiB
Image d'une petite tortue qui met une pièce dans une cannette `div.elementor-element > div.e-con-inner > a.elementor-element > img#21396`	melenchon2027.fr/wp-content/uploads/2026/05/TORTUE-DON-LD.png	386.4 KiB	383.2 KiB
Image d'une petite tortue violette qui livre du matériel `div.elementor > div.elementor-element > div.elementor-element > img#20598`	melenchon2027.fr/wp-content/uploads/2026/04/TORTUE-CHARIOT-768x768.png	310.0 KiB	307.7 KiB
Montage de trois photos de rassemblements politiques de La France Insoumise : à… `div.elementor-element > div.e-con-inner > div.elementor-element > img.attachment-large`	melenchon2027.fr/wp-content/uploads/2026/05/Photos-JLM-groupe2.png	320.3 KiB	304.7 KiB
Image d'une tortue qui pousse la jauge de soutiens `div.elementor-element > div.e-con-inner > div.elementor-element > img#20600`	melenchon2027.fr/wp-content/uploads/2026/04/TORTUE-QUI-POUSSE-768x768.png	222.0 KiB	220.7 KiB
Affiche de campagne La France Insoumise. Jean-Luc Mélenchon de dos, veste en cu… `div.elementor-element > div.elementor-element > a.e-image-link-base > img#21647`	melenchon2027.fr/wp-content/uploads/2026/05/AFFICHES-T27_Blocage-723x1024.jpg	134.0 KiB	130.7 KiB
Affiche de campagne La France Insoumise. Jean-Luc Mélenchon sourit, le poing le… `div.elementor > div.elementor-element > div.elementor-element > img#21646`	melenchon2027.fr/wp-content/uploads/2026/05/AFFICHES-T27_6erep-723x1024.jpg	120.5 KiB	117.2 KiB
Couverture du programme L'Avenir en commun édition 2025 `div.elementor-element > div.e-con-inner > a.elementor-element > img#18084`	melenchon2027.fr/wp-content/uploads/2025/07/COUV-AEC-A5-scaled-1-736x1024.jpg	116.8 KiB	115.3 KiB
Affiche de campagne La France Insoumise. Jean-Luc Mélenchon sourit pour un self… `div.elementor > div.elementor-element > div.elementor-element > img#21648`	melenchon2027.fr/wp-content/uploads/2026/05/AFFICHES-T27_Egalite-723x1024.jpg	113.4 KiB	110.3 KiB
Affiche de campagne La France Insoumise. Jean-Luc Mélenchon en veste orange de … `div.elementor > div.elementor-element > div.elementor-element > img#21943`	melenchon2027.fr/wp-content/uploads/2026/05/AFFICHES-T27_Eco-1-739x1024.jpg	108.1 KiB	105.2 KiB
Affiche de campagne La France Insoumise. Jean-Luc Mélenchon applaudit, entouré … `div.elementor > div.elementor-element > div.elementor-element > img#21649`	melenchon2027.fr/wp-content/uploads/2026/05/AFFICHES-T27_Paix-723x1024.jpg	103.2 KiB	100.3 KiB
div.e-con-inner > div.elementor-element > div.elementor-element > img.attachment-full `div.e-con-inner > div.elementor-element > div.elementor-element > img.attachment-full`	melenchon2027.fr/wp-content/uploads/2026/05/LOGO-LFI-BLANC-RVB-768x258.png	25.6 KiB	21.6 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-IMG

nodeLabel: Logo

path: 1,HTML,1,BODY,2,HEADER,0,HEADER,0,A,0,IMG

selector: header.elementor > header.elementor-element > a.e-image-link-base > img#19266

snippet: <img class="e-image-base e-5377198-d79f313" data-interaction-id="5377198" data-e-type="widget" data-id="5377198" id="19266" src="https://melenchon2027.fr/wp-content/uploads/2024/01/LOGO-M27.svg" width="397" height="138" srcset="" alt="Logo">

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

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.

URL	Transfer Size	Duration
/css?family=Roboto:100,100italic,200,200italic,300,300ita...	3.2 KiB	885 ms
melenchon2027.fr/wp-includes/js/jquery/jquery.min.js?ver=3.7.1	30.1 KiB	666 ms
/wp-content/cache/autoptimize/css/autoptimize_single_99f2...	532 B
/wp-content/cache/autoptimize/css/autoptimize_single_1455...	879 B
/wp-content/cache/autoptimize/css/autoptimize_single_14de...	2.7 KiB	166 ms
/wp-content/cache/autoptimize/css/autoptimize_single_270f...	1.6 KiB
/wp-content/cache/autoptimize/css/autoptimize_single_830c...	4.1 KiB	166 ms
/wp-content/cache/autoptimize/css/autoptimize_single_caea...	388 B
/wp-content/cache/autoptimize/css/autoptimize_single_139b...	747 B	166 ms
/wp-content/cache/autoptimize/css/autoptimize_single_9e31...	911 B
/wp-content/cache/autoptimize/css/autoptimize_single_4a93...	520 B
/wp-content/cache/autoptimize/css/autoptimize_single_b164...	1.2 KiB	166 ms
/wp-content/cache/autoptimize/css/autoptimize_single_9ed3...	1.1 KiB
/wp-content/plugins/elementor-pro/assets/css/modules/stic...	401 B
/wp-content/cache/autoptimize/css/autoptimize_single_3051...	4.8 KiB	166 ms
/wp-content/cache/autoptimize/css/autoptimize_single_1fa8...	489 B
/wp-content/cache/autoptimize/css/autoptimize_single_4e2a...	512 B
/wp-content/cache/autoptimize/css/autoptimize_single_7dce...	751 B
/wp-content/cache/autoptimize/css/autoptimize_single_aeec...	397 B
/wp-content/cache/autoptimize/css/autoptimize_single_0177...	591 B
/wp-content/cache/autoptimize/css/autoptimize_single_4aa4...	592 B
/wp-content/cache/autoptimize/css/autoptimize_single_a079...	600 B
/wp-content/cache/autoptimize/css/autoptimize_single_47fc...	1.7 KiB
use.typekit.net/rrw2zxe.css	2.5 KiB	822 ms
/wp-content/plugins/elementor/assets/css/widget-spacer.mi...	680 B
/wp-content/plugins/elementor-pro/assets/css/modules/moti...	599 B
/wp-content/plugins/elementor/assets/css/widget-image.min...	486 B
/wp-content/uploads/elementor/css/custom-pro-widget-nav-m...	3.7 KiB
/wp-content/plugins/elementor-pro/assets/css/widget-form....	1.9 KiB	166 ms
/wp-content/uploads/elementor/css/custom-widget-icon-box....	780 B
/wp-content/plugins/elementor-pro/assets/css/widget-posts...	2.7 KiB
/wp-content/plugins/elementor/assets/css/widget-heading.m...	448 B
/wp-content/plugins/elementor/assets/css/widget-menu-anch...	395 B
/wp-content/uploads/elementor/css/custom-apple-webkit.min...	912 B
/wp-content/plugins/elementor/assets/css/widget-social-ic...	1.4 KiB
/wp-content/plugins/elementor-pro/assets/css/widget-loop-...	453 B
/wp-content/plugins/elementor/assets/css/widget-divider.m...	1.0 KiB
/wp-content/uploads/elementor/css/custom-pro-widget-loop-...	1.5 KiB
/wp-content/plugins/elementor/assets/css/widget-video.min...	718 B	166 ms
/wp-content/uploads/elementor/css/custom-pro-widget-mega-...	3.1 KiB
/wp-content/plugins/elementor-pro/assets/css/conditionals...	728 B
melenchon2027.fr/wp-includes/js/dist/hooks.min.js?ver=dd5603f07f9220ed27f1	2.4 KiB
/wp-content/cache/autoptimize/css/autoptimize_single_09c6...	1.5 KiB
/wp-content/uploads/elementor/css/custom-frontend.min.css...	7.4 KiB
/wp-content/themes/hello-elementor/header-footer.min.css?...	1.7 KiB
/p.css?s=1&k=rrw2zxe&ht=tk&f=24536.24553.24554.24555.2455...	346 B	752 ms
/wp-content/cache/autoptimize/css/autoptimize_single_1019...	5.1 KiB
/wp-content/plugins/premium-addons-for-elementor/assets/f...	1.4 KiB
melenchon2027.fr/wp-includes/js/dist/i18n.min.js?ver=c26c3dc7bed366793375	2.7 KiB	166 ms
/wp-content/plugins/premium-addons-for-elementor/assets/f...	2.6 KiB
melenchon2027.fr/wp-content/themes/hello-elementor/theme.min.css?ver=3.0.1	1.6 KiB
melenchon2027.fr/wp-content/themes/hello-elementor/style.min.css?ver=3.0.1	2.2 KiB
melenchon2027.fr/cdn-cgi/scripts/5c5dd728/cloudflare-static/email-decode.min.js	1.0 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 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: 150 ms 25.4 KiB

URL	Transfer Size	Est Savings
matomo.lafranceinsoumise.fr/piwik.js	40.5 KiB	25.4 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.

Category	Time Spent
Script Evaluation	1.4 s
Other	876 ms
Style & Layout	502 ms
Parse HTML & CSS	174 ms
Script Parsing & Compilation	83 ms
Rendering	35 ms
Garbage Collection	7.5 ms

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: 0.0 ms 39.3 KiB

URL	Transfer Size	Est Savings
@charset "utf-8";.fa-solid,.fa-regular,.fa-brands,.fa-cla...	39.9 KiB	39.3 KiB

Large network payloads cost users real money and are highly correlated with long load times. Learn how to reduce payload sizes.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Transfer Size
melenchon2027.fr/wp-content/uploads/2026/04/LogoTortue.svg	1.4 MiB
melenchon2027.fr/wp-content/uploads/2026/05/Photos-JLM-groupe4.png	504.4 KiB
www.youtube.com/s/player/8fb635c2/player_embed_es6.vflset/en_US/base.js	435.9 KiB
melenchon2027.fr/wp-content/uploads/2026/05/TORTUE-DON-LD.png	387.0 KiB
melenchon2027.fr/wp-content/uploads/2026/05/Photos-JLM-groupe2.png	320.9 KiB
melenchon2027.fr/wp-content/uploads/2026/04/TORTUE-CHARIOT-768x768.png	310.6 KiB
melenchon2027.fr/wp-content/uploads/2026/05/Photos-JLM-groupe-entier-768x493.png	296.8 KiB
melenchon2027.fr/wp-content/uploads/2026/04/TORTUE-QUI-POUSSE-768x768.png	222.6 KiB
/wp-content/uploads/2026/05/Tortue-Materiel-Desktop-1-768...	200.5 KiB
/s/_/ytembeds/_/js/k=ytembeds.base.en_US.34ZJqU1PH_M.2021...	193.8 KiB

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

●Max Potential First Input Delay 120 ms

●Layout shift culprits

●Document request latency

●Optimize DOM size

●LCP breakdown

●Modern HTTP

●Optimize viewport for mobile

●Minify CSS

●Minify JavaScript

●JavaScript execution time 1.1 s

●Avoid long main-thread tasks 6 long tasks found

●Avoid non-composited animations 1 animated element found

●Image elements have explicit `width` and `height`

●Page didn't prevent back/forward cache restoration

●Network Requests

●Network Round Trip Times 70 ms

●Server Backend Latencies 60 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 60 ms

●Avoid large layout shifts 1 layout shift found

○INP breakdown

○User Timing marks and measures

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.

Navigation

Properly ordered headings that do not skip levels convey the semantic structure of the page, making it easier to navigate and understand when using assistive technologies. Learn more about heading order.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Déjà 250 349 soutiens ! `div.e-con-inner > div.elementor-element > div.elementor-element > h6`
Participez à L’Avenir en commun `div.elementor-element > div.e-con-inner > div.elementor-element > h6.e-5725095-aa0ed69`
Soutien financier `div.elementor-element > div.e-con-inner > div.elementor-element > h6.e-561efdd-dab65ad`
Élection présidentielle 2027 `div.e-con-inner > div.elementor-element > div.elementor-element > h6.e-5395e84-8f4a5fc`

These are opportunities to improve keyboard navigation in your application.

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
Illustration montrant une tortue violette transportant des colis, reliée par de… `div.elementor-element > div.elementor-element > div.e-con-inner > a.e-image-link-base`
div.elementor-element > div.elementor-element > div.elementor-icon-wrapper > a.elementor-icon `div.elementor-element > div.elementor-element > div.elementor-icon-wrapper > a.elementor-icon`

Including a skip link can help users skip to the main content to save time. Learn more about skip links.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Aller au contenu `body.home > a.skip-link`

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
J'habite à l'étranger `form.elementor-form > div.elementor-form-fields-wrapper > div.elementor-field-type-number > a.etranger`
J'habite à l'étranger `form.elementor-form > div.elementor-form-fields-wrapper > div.elementor-field-type-number > a.etranger`

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-*]` attributes match their roles

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

●`[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

●`[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.

●`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.

●Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).

●List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements

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

●Deprecated ARIA roles were not used

●ARIA IDs are unique

●No form fields have multiple labels

●Uses ARIA roles only on compatible elements

●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 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

○`<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

○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.

○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

User Experience

Image display dimensions should match natural aspect ratio. Learn more about image aspect ratio.

Why this matters

Performance issues directly impact user engagement and conversion rates.

	URL	Aspect Ratio (Displayed)	Aspect Ratio (Actual)
Couverture du programme L'Avenir en commun édition 2025 `div.elementor-element > div.e-con-inner > a.elementor-element > img#18084`	melenchon2027.fr/wp-content/uploads/2025/07/COUV-AEC-A5-scaled-1-736x1024.jpg	80 x 120 (0.67)	736 x 1024 (0.72)

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 / Warning	Source
SharedStorage	melenchon2027.fr/cdn-cgi/challenge-platform/scripts/jsd/main.js
StorageType.persistent is deprecated. Please use standardized navigator.storage instead.	melenchon2027.fr/cdn-cgi/challenge-platform/scripts/jsd/main.js
Fledge	melenchon2027.fr/cdn-cgi/challenge-platform/scripts/jsd/main.js

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

Source	Description
/wp-content/plugins/elementor-pro/assets/js/load-more.7c4... line 1, col 3635	TypeError: Failed to execute 'observe' on 'IntersectionObserver': parameter 1 is not of type 'Element'. at LoadMore.handleInfiniteScroll (https://melenchon2027.fr/wp-content/plugins/elementor-pro/assets/js/load-more.7c4417f8a727b79f546f.bundle.min.js:2:3636) at LoadMore.onInit (https://melenchon2027.fr/wp-content/plugins/elementor-pro/assets/js/load-more.7c4417f8a727b79f546f.bundle.min.js:2:2760) at Module.trigger (https://melenchon2027.fr/wp-content/plugins/elementor/assets/js/frontend-modules.min.js?ver=4.0.7:1:3210) at r.<computed> [as trigger] (https://melenchon2027.fr/wp-content/plugins/elementor/assets/js/frontend-modules.min.js?ver=4.0.7:1:3395) at LoadMore.Module (https://melenchon2027.fr/wp-content/plugins/elementor/assets/js/frontend-modules.min.js?ver=4.0.7:1:3492) at LoadMore.child [as constructor] (https://melenchon2027.fr/wp-content/plugins/elementor/assets/js/frontend-modules.min.js?ver=4.0.7:1:3757) at new child (https://melenchon2027.fr/wp-content/plugins/elementor/assets/js/frontend-modules.min.js?ver=4.0.7:1:3757) at new LoadMore (https://melenchon2027.fr/wp-content/plugins/elementor-pro/assets/js/load-more.7c4417f8a727b79f546f.bundle.min.js:2:1135) at e.exports.addHandler (https://melenchon2027.fr/wp-content/plugins/elementor/assets/js/frontend.min.js?ver=4.0.7:1:18616) at https://melenchon2027.fr/wp-content/plugins/elementor/assets/js/frontend.min.js?ver=4.0.7:1:18348

/wp-content/plugins/elementor-pro/assets/js/load-more.7c4... line 1, col 3635

TypeError: Failed to execute 'observe' on 'IntersectionObserver': parameter 1 is not of type 'Element'.
    at LoadMore.handleInfiniteScroll (https://melenchon2027.fr/wp-content/plugins/elementor-pro/assets/js/load-more.7c4417f8a727b79f546f.bundle.min.js:2:3636)
    at LoadMore.onInit (https://melenchon2027.fr/wp-content/plugins/elementor-pro/assets/js/load-more.7c4417f8a727b79f546f.bundle.min.js:2:2760)
    at Module.trigger (https://melenchon2027.fr/wp-content/plugins/elementor/assets/js/frontend-modules.min.js?ver=4.0.7:1:3210)
    at r.<computed> [as trigger] (https://melenchon2027.fr/wp-content/plugins/elementor/assets/js/frontend-modules.min.js?ver=4.0.7:1:3395)
    at LoadMore.Module (https://melenchon2027.fr/wp-content/plugins/elementor/assets/js/frontend-modules.min.js?ver=4.0.7:1:3492)
    at LoadMore.child [as constructor] (https://melenchon2027.fr/wp-content/plugins/elementor/assets/js/frontend-modules.min.js?ver=4.0.7:1:3757)
    at new child (https://melenchon2027.fr/wp-content/plugins/elementor/assets/js/frontend-modules.min.js?ver=4.0.7:1:3757)
    at new LoadMore (https://melenchon2027.fr/wp-content/plugins/elementor-pro/assets/js/load-more.7c4417f8a727b79f546f.bundle.min.js:2:1135)
    at e.exports.addHandler (https://melenchon2027.fr/wp-content/plugins/elementor/assets/js/frontend.min.js?ver=4.0.7:1:18616)
    at https://melenchon2027.fr/wp-content/plugins/elementor/assets/js/frontend.min.js?ver=4.0.7:1:18348

●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

●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

●Detected JavaScript libraries

●Page has valid source maps

○Redirects HTTP traffic to HTTPS

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.

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 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`