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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.

48

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
analytics.openedition.org/matomo.js0.0 ms67.0 KiB
www.openedition.org/docannexe/image/0/vignette-passesfuturs-160x75.png0.0 ms31.3 KiB
static.openedition.org/js/jquery-1.4.4.min.js0.0 ms26.6 KiB
static.openedition.org/openedition/images/shared/sprites.png0.0 ms26.0 KiB
www.openedition.org/docannexe/image/0/textusmusica_600%C3%97281-160x75.png0.0 ms22.4 KiB
www.openedition.org/docannexe/image/0/sourcesarche_600x281-160x75.png0.0 ms21.5 KiB
static.openedition.org/openbarre_/fonts/roboto-500.woff20.0 ms15.7 KiB
static.openedition.org/openbarre_/fonts/roboto-400.woff20.0 ms15.5 KiB
static.openedition.org/openedition/js/jquery-ui/jquery-ui-1.7.2.custom.min.js0.0 ms14.2 KiB
static.openedition.org/openedition/images/openedition/flower.png0.0 ms13.1 KiB
www.openedition.org/docannexe/image/0/3_vignette_BCE_open_edition-160x75.png0.0 ms12.1 KiB
www.openedition.org/docannexe/image/19342/avignon_universite_CMJN-1_90x111px.jpg0.0 ms11.7 KiB
www.openedition.org/docannexe/image/19340/logo_amu_bleu_rvb_130.png0.0 ms10.3 KiB
www.openedition.org/docannexe/image/0/600x281%20topiques-160x75.jpg0.0 ms9.8 KiB
www.openedition.org/docannexe/image/19343/Logotype-rouge-bleu_100x100px.png0.0 ms9.3 KiB
www.openedition.org/docannexe/image/19341/Logo_EHESS_2021_CMJN_100x105px.png0.0 ms9.0 KiB
static.openedition.org/openbarre_/styles/main.css?date=2018-11-060.0 ms7.0 KiB
static.openedition.org/openedition/images/openedition/logo_openedition.png0.0 ms6.4 KiB
static.openedition.org/openedition/css/openedition.css?upd=202502050.0 ms5.9 KiB
www.openedition.org/docannexe/image/19339/LOGO%20CNRS_BLEU_100x99px.png0.0 ms5.7 KiB
www.openedition.org/docannexe/image/0/footballs_600%C3%97281-160x75.png0.0 ms5.5 KiB
static.openedition.org/openedition/css/jquery-ui/jquery-ui-1.7.2.custom.css0.0 ms5.0 KiB
www.openedition.org/docannexe/image/19344/Mesri_logo_small.png0.0 ms4.5 KiB
www.openedition.org/docannexe/image/0/vignette-revuehsakespearee-160x75.png0.0 ms4.2 KiB
static.openedition.org/openedition/js/rhino/js/rhinoslider-1.05.min.js0.0 ms4.0 KiB
static.openedition.org/openedition/images/openedition/title_hypotheses.png0.0 ms3.4 KiB
static.openedition.org/openbarre_/scripts/main.js?date=2020-09-010.0 ms3.3 KiB
www.openedition.org/docannexe/image/0/latelier_600x281-160x75.png0.0 ms3.3 KiB
static.openedition.org/openedition/css/main.css?upd=201802120.0 ms3.1 KiB
static.openedition.org/openedition/images/shared/logo-openaccess.png0.0 ms3.0 KiB
static.openedition.org/openedition/images/openedition/title_revues.png0.0 ms3.0 KiB
/openedition/images/openedition/title_openedition-books.png0.0 ms2.9 KiB
static.openedition.org/css/normalize.css?upd=201802120.0 ms2.7 KiB
static.openedition.org/openedition/images/openedition/title_calenda.png0.0 ms2.6 KiB
static.openedition.org/openedition/images/shared/flower_separator.png0.0 ms2.5 KiB
static.openedition.org/openedition/js/main.js0.0 ms2.0 KiB
static.openedition.org/openedition/js/home.js0.0 ms1.8 KiB
static.openedition.org/openedition/css/jquery-ui.css?upd=201802120.0 ms1.3 KiB
static.openedition.org/openedition/js/home.calenda.js0.0 ms1.3 KiB
static.openedition.org/js/jquery.jsonp-latest.min.js0.0 ms1.2 KiB
static.openedition.org/openedition/css/paginate.css?upd=201802120.0 ms1.2 KiB
static.openedition.org/openedition/css/layout.css?upd=201802120.0 ms998 B
static.openedition.org/openedition/css/media_main.css?upd=201802120.0 ms960 B
static.openedition.org/openbarre_/images/tout_openedition_gray.svg0.0 ms916 B
static.openedition.org/openedition/js/rhino/js/mousewheel.js0.0 ms873 B
static.openedition.org/openedition/js/jquery-ui/jquery.ui.datepicker-fr.js0.0 ms676 B
static.openedition.org/openedition/css/print.css?upd=201802120.0 ms588 B
static.openedition.org/openedition/js/plugins.js0.0 ms540 B
static.openedition.org/openbarre_/images/menuHamb_grey.svg0.0 ms460 B

Layout shifts occur when elements move absent any user interaction. Investigate the causes of layout shifts, such as elements being added, removed, or their fonts changing as the page loads.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:node label:Element subItemsHeading:map[key:extra] valueType:node] map[granularity:0.001 key:score label:Layout shift score subItemsHeading:map[key:cause valueType:text] valueType:numeric]]
items: [map[node:map[type:text value:Total] score:0.263845] map[node:map[boundingRect:map[bottom:8003 height:7790 left:0 right:412 top:213 width:412] lhId:page-1-DIV nodeLabel:OpenEdition est un portail de ressources électroniques en sciences humaines et … path:5,HTML,2,BODY,3,DIV selector:body#home > div.page snippet:<div class="page"> type:node] score:0.251476] map[node:map[boundingRect:map[bottom:1386 height:880 left:12 right:424 top:506 width:412] lhId:page-2-SECTION nodeLabel:À la Une MES AMIS LES CHLEUHS Souvenirs et scènes de vie berbère Léopold Ju… path:5,HTML,2,BODY,3,DIV,0,MAIN,2,DIV,0,SECTION selector:div.page > main > div#books > section.first snippet:<section class="first"> type:node] score:0.012369 subItems:map[items:[map[cause:Web font extra:map[type:url value:https://fonts.gstatic.com/s/asap/v34/KFO9CniXp96a4Tc2DaTeuDAoKsE615hJW36eA1Ef.woff2]] map[cause:Web font extra:map[type:url value:https://fonts.gstatic.com/s/asap/v34/KFO7CniXp96ayz4E7kSn66aGLdTylUAMa3yUBHMdazQ.woff2]] map[cause:Web font extra:map[type:url value:https://fonts.gstatic.com/s/asap/v34/KFO7CniXp96ayz4E7kSn66aGLdTylUAMa3KUBHMdazTgWw.woff2]]] type:subitems]]]

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.

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

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
Textus & Musica article#oe-revues-first-2 > figure > a > img
www.openedition.org/docannexe/image/0/textusmusica_600%C3%97281-160x75.png22.2 KiB20.3 KiB
div.more-infos > ul.read-more > li.to-right > a.icons div.more-infos > ul.read-more > li.to-right > a.icons
static.openedition.org/openedition/images/shared/sprites.png25.8 KiB19.7 KiB
Avignon Université ul > li > a > img
www.openedition.org/docannexe/image/19342/avignon_universite_CMJN-1_90x111px.jpg11.6 KiB10.0 KiB
OpenEdition est un portail de ressources électroniques en sciences humaines et … body#home > div.page > main > div.oe-more
static.openedition.org/openedition/images/openedition/flower.png13.0 KiB9.7 KiB
Aix-Marseille Université ul > li > a > img
www.openedition.org/docannexe/image/19340/logo_amu_bleu_rvb_130.png10.2 KiB8.5 KiB
Investissements d'avenir ul > li > a > img
www.openedition.org/docannexe/image/19343/Logotype-rouge-bleu_100x100px.png9.2 KiB7.6 KiB
École des Hautes Études en Sciences Sociales ul > li > a > img
www.openedition.org/docannexe/image/19341/Logo_EHESS_2021_CMJN_100x105px.png8.8 KiB7.1 KiB

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.

These are the largest layout shifts observed on the page. Each table item represents a single layout shift, and shows the element that shifted the most. Below each item are possible root causes that led to the layout shift. Some of these layout shifts may not be included in the CLS metric value due to windowing. Learn how to improve CLS

Why this matters

Performance issues directly impact user engagement and conversion rates.

ElementLayout shift score
OpenEdition est un portail de ressources électroniques en sciences humaines et … body#home > div.page
0.251
0.058
À la Une MES AMIS LES CHLEUHS Souvenirs et scènes de vie berbère Léopold Ju… div.page > main > div#books > section.first
0.012
0.009

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: 0.0 ms 37.0 KiB
URLTransfer SizeEst Savings
analytics.openedition.org/matomo.js66.8 KiB37.0 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
openedition.org li.oe-FooterBlock-links-list-item > h2.oe-FooterBlock-links-subTitle > a > img
static.openedition.org/openedition/images/openedition/logo_openedition.png
L’Atelier article#oe-revues-first-0 > figure > a > img
www.openedition.org/docannexe/image/0/latelier_600x281-160x75.png
Revue de la Société française Shakespeare article#oe-revues-first-1 > figure > a > img
www.openedition.org/docannexe/image/0/vignette-revuehsakespearee-160x75.png
Textus & Musica article#oe-revues-first-2 > figure > a > img
www.openedition.org/docannexe/image/0/textusmusica_600%C3%97281-160x75.png
Football(s) article#oe-revues-first-3 > figure > a > img
www.openedition.org/docannexe/image/0/footballs_600%C3%97281-160x75.png
Passés futurs article#oe-revues-first-4 > figure > a > img
www.openedition.org/docannexe/image/0/vignette-passesfuturs-160x75.png
Topiques, études satoriennes article#oe-revues-first-5 > figure > a > img
www.openedition.org/docannexe/image/0/600x281%20topiques-160x75.jpg
Source(s) article#oe-revues-first-6 > figure > a > img
www.openedition.org/docannexe/image/0/sourcesarche_600x281-160x75.png
Bulletin de liaison de la céramique égyptienne article#oe-revues-first-7 > figure > a > img
www.openedition.org/docannexe/image/0/3_vignette_BCE_open_edition-160x75.png
open access main > div.oe-more > div#OEdata > img.guest
static.openedition.org/openedition/images/shared/logo-openaccess.png

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

Optimize DOM size
Forced reflow
LCP breakdown
Modern HTTP
Optimize viewport for mobile
Max Potential First Input Delay 40 ms
Minify CSS
Minify JavaScript
Reduce unused CSS
Avoids enormous network payloads Total size was 846 KiB
JavaScript execution time 0.1 s
Minimizes main-thread work 1.3 s
Avoid long main-thread tasks 1 long task found
Page didn't prevent back/forward cache restoration
Network Requests
Network Round Trip Times 30 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 30 ms
INP breakdown
LCP request discovery
User Timing marks and measures
Avoid non-composited animations
69

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.

Names and labels

When a button doesn't have an accessible name, screen readers announce it as "button", making it unusable for users who rely on screen readers. Learn how to make buttons more accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.ob-header-bottom-row > div.ob-header-bottom-nav-container > div.ob-header-bottom-nav-mobile > button#ob-sidenav-button div.ob-header-bottom-row > div.ob-header-bottom-nav-container > div.ob-header-bottom-nav-mobile > button#ob-sidenav-button
div.ob-header-bottom-nav-container > div.ob-header-bottom-tout-OE > div.ob-header-bottom-tout-OE-content > button#ob-grid-nav-content-open div.ob-header-bottom-nav-container > div.ob-header-bottom-tout-OE > div.ob-header-bottom-tout-OE-content > button#ob-grid-nav-content-open
div.more-infos > ul.asc-desc > li > button.down div.more-infos > ul.asc-desc > li > button.down
div.more-infos > ul.asc-desc > li > button.up div.more-infos > ul.asc-desc > li > button.up
div.more-infos > ul.asc-desc > li > button.down div.more-infos > ul.asc-desc > li > button.down
div.more-infos > ul.asc-desc > li > button.up div.more-infos > ul.asc-desc > li > button.up
div.more-infos > ul.asc-desc > li > button.down div.more-infos > ul.asc-desc > li > button.down
div.more-infos > ul.asc-desc > li > button.up div.more-infos > ul.asc-desc > li > button.up
div.more-infos > ul.asc-desc > li > button.down div.more-infos > ul.asc-desc > li > button.down
div.more-infos > ul.asc-desc > li > button.up div.more-infos > ul.asc-desc > li > button.up
div.more-infos > ul.asc-desc > li > button.down div.more-infos > ul.asc-desc > li > button.down
div.more-infos > ul.asc-desc > li > button.up div.more-infos > ul.asc-desc > li > button.up
div.more-infos > ul.asc-desc > li > button.down div.more-infos > ul.asc-desc > li > button.down
div.more-infos > ul.asc-desc > li > button.up div.more-infos > ul.asc-desc > li > button.up
div.more-infos > ul.asc-desc > li > button.down div.more-infos > ul.asc-desc > li > button.down
div.more-infos > ul.asc-desc > li > button.up div.more-infos > ul.asc-desc > li > button.up
div.more-infos > ul.asc-desc > li > button.down div.more-infos > ul.asc-desc > li > button.down
div.more-infos > ul.asc-desc > li > button.up div.more-infos > ul.asc-desc > li > button.up

Form elements without effective labels can create frustrating experiences for screen reader users. Learn more about the `select` element.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Rechercher dans... Tout OpenEdition Catalogue des revues Catalogue des carnets div.ob-search-container > form > div.ob-dropdown-search > select.ob-dropdown-search-select

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
main > div.separator_4 > h1 > a main > div.separator_4 > h1 > a
div.more-infos > ul.read-more > li.to-right > a.icons div.more-infos > ul.read-more > li.to-right > a.icons
main > div.separator_4 > h1 > a main > div.separator_4 > h1 > a
div.more-infos > ul.read-more > li.to-right > a.icons div.more-infos > ul.read-more > li.to-right > a.icons
main > div.separator_4 > h1 > a main > div.separator_4 > h1 > a
div.more-infos > ul.read-more > li.to-right > a.icons div.more-infos > ul.read-more > li.to-right > a.icons
main > div.separator_4 > h1 > a main > div.separator_4 > h1 > a
div.more-infos > ul.read-more > li.to-right > a.icons div.more-infos > ul.read-more > li.to-right > a.icons
li.follow-us > ul > li > a.icons li.follow-us > ul > li > a.icons
li.follow-us > ul > li > a.icons li.follow-us > ul > li > a.icons
li.follow-us > ul > li > a.icons li.follow-us > ul > li > a.icons
li.follow-us > ul > li > a.icons li.follow-us > ul > li > a.icons
li.follow-us > ul > li > a.icons li.follow-us > ul > li > a.icons

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.

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
RECHERCHER div#ob-search > div.ob-search-container > form > button.ob-buttons-search
L’Atelier div > header > h1 > a
Lire la suite div.section-articles > article#oe-revues-first-0 > div > a.read-more
Revue de la Société française Shakespeare div > header > h1 > a
Lire la suite div.section-articles > article#oe-revues-first-1 > div > a.read-more
Textus & Musica. Revue d’études interdisciplinaires div > header > h1 > a
LIRE LES ARCHIVES div.more-infos > ul.read-more > li > a
ACCÉDER AU CATALOGUE div.more-infos > ul.read-more > li > a
RAPPORTS DE GENRE FACE AUX NOUVEAUX DÉFIS SOCIÉTAUX ET ÉCONOMIQUES : MUTATIONS,… div > header > h1 > a
LIRE LA SUITE article#oe-calenda-first-0 > div > p > a.read-more
LES TRANSFORMATIONS DES MONDES SOCIAUX DE LA PÊCHE div > header > h1 > a
LIRE LA SUITE article#oe-calenda-first-1 > div > p > a.read-more
SEXUALITÉ ET DÉVIANCES. PERSPECTIVES HISTORIQUES div > header > h1 > a
LIRE LA SUITE article#oe-calenda-first-2 > div > p > a.read-more
VOIR TOUTES LES CATÉGORIES div.more-infos > ul.read-more > li > a

These are opportunities to improve the legibility of your content.

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
div.ob-header-bottom-bar > div.ob-header-bottom-row > div.ob-header-bottom-logo > a div.ob-header-bottom-bar > div.ob-header-bottom-row > div.ob-header-bottom-logo > a

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
Institut français d’études anatoliennes, 2026 article#oe-books-first-1 > div > header > h3
ENS Éditions, 2026 article#oe-books-first-4 > div > header > h3

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
LIRE LES ARCHIVES div.more-infos > ul.read-more > li > a
ACCÉDER AU CATALOGUE div.more-infos > ul.read-more > li > a
Services li.oe-FooterBlock-links-subTitle > ul > li > a
Équipe li.oe-FooterBlock-links-subTitle > ul > li > a
Bilans et rapports li.oe-FooterBlock-links-subTitle > ul > li > a
Grandes Dates li.oe-FooterBlock-links-subTitle > ul > li > a
Conseils et comités li.oe-FooterBlock-links-subTitle > ul > li > a
Expertise scientifique li.oe-FooterBlock-links-subTitle > ul > li > a
Plan annuel 2024 li.oe-FooterBlock-links-subTitle > ul > li > a
Plan annuel 2025 li.oe-FooterBlock-links-subTitle > ul > li > a
Plan annuel 2026 li.oe-FooterBlock-links-subTitle > ul > li > a
OpenEdition Journals li.oe-FooterBlock-links-subTitle > ul > li > a
OpenEdition Books li.oe-FooterBlock-links-subTitle > ul > li > a
Hypothèses li.oe-FooterBlock-links-subTitle > ul > li > a
Calenda li.oe-FooterBlock-links-subTitle > ul > li > a
Adhérer li.oe-FooterBlock-links-subTitle > ul > li > a
Se former li.oe-FooterBlock-links-subTitle > ul > li > a
Flux de syndication li.oe-FooterBlock-links-subTitle > ul > li > a
Résolveur d’ISBN li.oe-FooterBlock-links-subTitle > ul > li > a
Candidater à OpenEdition Journals li.oe-FooterBlock-links-subTitle > ul > li > a
Candidater à OpenEdition Books li.oe-FooterBlock-links-subTitle > ul > li > a
Identification des publications li.oe-FooterBlock-links-subTitle > ul > li > a
Statistiques de fréquentation li.oe-FooterBlock-links-subTitle > ul > li > a
Labellisation des revues li.oe-FooterBlock-links-subTitle > ul > li > a
Outils de référencement li.oe-FooterBlock-links-subTitle > ul > li > a
API de Calenda li.oe-FooterBlock-links-subTitle > ul > li > a
Service OPDS li.oe-FooterBlock-links-subTitle > ul > li > a
Commande de livres li.oe-FooterBlock-links-subTitle > ul > li > a
Abonnement aux revues li.oe-FooterBlock-links-subTitle > ul > li > a
Institutions partenaires li.oe-FooterBlock-links-subTitle > ul > li > a
Référencement ul > li.oe-FooterBlock-links-subTitle > h2 > a
Référencement li.oe-FooterBlock-links-subTitle > ul > li > a
Dépôt OAI-PMH li.oe-FooterBlock-links-subTitle > ul > li > a
Notices au format MARC li.oe-FooterBlock-links-subTitle > ul > li > a
Fichiers au format KBART li.oe-FooterBlock-links-subTitle > ul > li > a
Flux de syndication li.oe-FooterBlock-links-subTitle > ul > li > a
API de Calenda li.oe-FooterBlock-links-subTitle > ul > li > a
CGU li.oe-FooterBlock-links-subTitle > ul > li > a
Crédits li.oe-FooterBlock-links-subTitle > ul > li > a
Données personnelles li.oe-FooterBlock-links-subTitle > ul > li > a
Gestion des Cookies li.oe-FooterBlock-links-subTitle > ul > li > a

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>`
`[role]`s have all required `[aria-*]` attributes
`[role]` values are valid
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.
`[aria-hidden="true"]` elements do not contain focusable descendents
Document has a `<title>` element
`<html>` element has a `[lang]` attribute
`<html>` element has a valid value for its `[lang]` attribute
Links are distinguishable without relying on color.
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements
`<html>` element has an `[xml:lang]` attribute with the same base language as the `[lang]` attribute.
Document has a main landmark.
Deprecated ARIA roles were not used
All heading elements contain content.
Identical links have the same purpose.
`[accesskey]` values are unique
`[aria-*]` attributes match their roles
`button`, `link`, and `menuitem` elements have accessible names
ARIA attributes are used as specified for the element's role
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
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
`[aria-*]` attributes have valid values
`[aria-*]` attributes are valid and not misspelled
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
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
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.
`[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>`.
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.
73

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
www.openedition.org/Allowed
www.openedition.org/favicon.icoBlocked

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
Failed to load resource: the server responded with a status of 401 ()
Failed to load resource: the server responded with a status of 401 ()
Mixed Content: The page at 'https://openedition.org/' was loaded over HTTPS, but requested an insecure favicon 'http://www.openedition.org/favicon.ico'. This request has been blocked; the content must be served over HTTPS.

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
Serves images with appropriate resolution
Page has the HTML doctype
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
83

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.

Crawling and Indexing

Search engines may use `href` attributes on links to crawl websites. Ensure that the `href` attribute of anchor elements links to an appropriate destination, so more pages of the site can be discovered. Learn how to make links crawlable

Why this matters

Performance issues directly impact user engagement and conversion rates.

Uncrawlable Link
Mar div#datepicker > div.ui-datepicker-inline > div.ui-datepicker-header > a.ui-datepicker-prev
Mai div#datepicker > div.ui-datepicker-inline > div.ui-datepicker-header > a.ui-datepicker-next

If your robots.txt file is malformed, crawlers may not be able to understand how you want your website to be crawled or indexed. Learn more about robots.txt.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Line #ContentError
1<!doctype html><html lang="en"><head><title>Oh noes!</title><link rel="stylesheet" href="/.within.website/x/xess/xess.min.css?cachebuster=1.25.0"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="robots" content="noindex,nofollow"><style>Syntax not understood
2 body,Syntax not understood
3 html {Syntax not understood
4 height: 100%;Unknown directive
5 display: flex;Unknown directive
6 justify-content: center;Unknown directive
7 align-items: center;Unknown directive
8 margin-left: auto;Unknown directive
9 margin-right: auto;Unknown directive
10 }Syntax not understood
12 .centered-div {Syntax not understood
13 text-align: center;Unknown directive
14 }Syntax not understood
17 font-variant-numeric: tabular-nums;Unknown directive
18 }Syntax not understood
21 display: none;Unknown directive
22 width: 90%;Unknown directive
23 width: min(20rem, 90%);Unknown directive
24 height: 2rem;Unknown directive
25 border-radius: 1rem;Unknown directive
26 overflow: hidden;Unknown directive
27 margin: 1rem 0 2rem;Unknown directive
28 outline-offset: 2px;Unknown directive
29 outline: #b16286 solid 4px;Unknown directive
30 }Syntax not understood
32 .bar-inner {Syntax not understood
33 background-color: #b16286;Unknown directive
34 height: 100%;Unknown directive
35 width: 0;Unknown directive
36 transition: width 0.25s ease-in;Unknown directive
37 }Syntax not understood
38 </style><script id="anubis_version" type="application/json">"1.25.0"Syntax not understood
39</script><script id="anubis_challenge" type="application/json">nullSyntax not understood
40</script><script id="anubis_base_prefix" type="application/json">""Syntax not understood
41</script><script id="anubis_public_url" type="application/json">""Syntax not understood
42</script></head><body id="top"><script type="ignore"><a href="/.within.website/x/cmd/anubis/api/honeypot/c2f84439-1974-45d3-8881-ee2d533bd87a/init">Don't click me</a></script><main><h1 id="title" class="centered-div">Oh noes!</h1><div class="centered-div"><img id="image" alt="Sad Anubis" style="width:100%;max-width:256px;" src="/.within.website/x/cmd/anubis/static/img/reject.webp?cacheBuster=1.25.0"><p>Access Denied: error code 4d1dbaddfcc0f385.</p><p><a href="/">Go home</a></p></div><footer><div class="centered-div"><p>Protected by <a href="https://github.com/TecharoHQ/anubis">Anubis</a> From <a href="https://techaro.lol">Techaro</a>. Made with ❤️ in 🇨🇦.</p><p>Mascot design by <a href="https://bsky.app/profile/celphase.bsky.social">CELPHASE</a>.</p><p>This website is running Anubis version <code>1.25.0</code>.</p></div></footer></main></body></html>Unknown directive

To appear in search results, crawlers need access to your app.

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

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