{"id":25530,"date":"2026-03-19T10:00:00","date_gmt":"2026-03-19T09:00:00","guid":{"rendered":"https:\/\/www.codeur.com\/blog\/?p=25530"},"modified":"2026-03-19T10:00:05","modified_gmt":"2026-03-19T09:00:05","slug":"corriger-erreurs-404","status":"publish","type":"post","link":"https:\/\/www.codeur.com\/blog\/corriger-erreurs-404\/","title":{"rendered":"Erreurs 404&nbsp;: comment les d\u00e9tecter et les corriger&nbsp;?"},"content":{"rendered":"\n<p>Il vous est certainement d\u00e9j\u00e0 arriv\u00e9 de naviguer sur un site et de tomber sur une erreur 404, n&#8217;est-ce pas&nbsp;? Faire face \u00e0 une page introuvable est tr\u00e8s frustrant, et vous ne voudriez pas que cela arrive aux utilisateurs de votre propre site.<\/p>\n\n\n\n<p>M\u00eame si l&#8217;impact est quasi inexistant sur votre r\u00e9f\u00e9rencement naturel, vous devez conserver une bonne exp\u00e9rience utilisateur, et faire en sorte que les internautes gardent confiance en votre site.<br>Voil\u00e0 pourquoi il est essentiel de savoir d\u00e9tecter les erreurs 404, puis de les corriger.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Qu&#8217;est-ce qu&#8217;une erreur 404&nbsp;?<\/h2>\n\n\n\n<p>Une erreur 404 est souvent accompagn\u00e9e du message &#8220;Page introuvable&#8221;, et correspond \u00e0 un code d&#8217;erreur HTTP retourn\u00e9 par le serveur du site web.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img decoding=\"async\" width=\"800\" height=\"318\" src=\"https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2019\/05\/erreur-404-google.jpg\" alt=\"Erreur 404 Google\" class=\"wp-image-25535\" srcset=\"https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2019\/05\/erreur-404-google.jpg 800w, https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2019\/05\/erreur-404-google-300x119.jpg 300w, https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2019\/05\/erreur-404-google-768x305.jpg 768w, https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2019\/05\/erreur-404-google-370x147.jpg 370w, https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2019\/05\/erreur-404-google-270x107.jpg 270w, https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2019\/05\/erreur-404-google-570x227.jpg 570w, https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2019\/05\/erreur-404-google-740x294.jpg 740w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure><\/div>\n\n\n<p>Dans ce genre de situation, l&#8217;internaute tente d&#8217;acc\u00e9der \u00e0 une page que le serveur n&#8217;est pas capable de trouver&nbsp;: il ne peut donc afficher aucun contenu.<br><br>Selon les navigateurs, une erreur 404 peut prendre diff\u00e9rentes terminologies, par exemple&nbsp;:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>404 Not Found<\/li>\n\n\n\n<li>The requested URL was not found in this server<\/li>\n\n\n\n<li>HTTP 404<\/li>\n\n\n\n<li>HTTP 404 Not Found<\/li>\n\n\n\n<li>404 File or Directory Not Found<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Les causes d&#8217;une erreur 404<\/h2>\n\n\n\n<p>Plusieurs situations peuvent mener \u00e0 une erreur 404&nbsp;:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Le lien auquel un utilisateur tente d&#8217;acc\u00e9der a \u00e9t\u00e9 retir\u00e9, il n&#8217;existe plus<\/li>\n\n\n\n<li>Le lien, lorsqu&#8217;il est saisi directement par l&#8217;utilisateur, comporte une erreur de syntaxe<\/li>\n\n\n\n<li>Le lien comporte <a href=\"https:\/\/www.codeur.com\/blog\/faire-une-redirection-url\/\" target=\"_blank\" rel=\"noopener noreferrer\">une redirection<\/a>, mais celle-ci n&#8217;a pas \u00e9t\u00e9 configur\u00e9e correctement<\/li>\n\n\n\n<li>Le probl\u00e8me provient du serveur, mais cela reste rare<\/li>\n<\/ul>\n\n\n\n<p>Il est tr\u00e8s important de r\u00e9soudre ces erreurs 404, car la <a href=\"https:\/\/graphiste.com\/blog\/meilleure-navigation-site-web?utm_source=linking-article&amp;utm_campaign=BlogCodeur\" target=\"_blank\" rel=\"noopener noreferrer\">qualit\u00e9 de navigation<\/a> sur votre site est un aspect \u00e0 ne pas n\u00e9gliger. Comme nous l&#8217;avons d\u00e9j\u00e0 \u00e9voqu\u00e9 au d\u00e9but de cet article, ne pas pouvoir acc\u00e9der \u00e0 une page web est tr\u00e8s frustrant. Vos visiteurs risquent de quitter votre site pour aller chez un concurrent chercher le contenu souhait\u00e9.<\/p>\n\n\n\n<p>Concernant votre SEO, celui-ci ne sera sans doute pas impact\u00e9. Google a conscience qu&#8217;il est difficile d&#8217;avoir un \u0153il sur tous ses liens, il est donc &#8220;normal&#8221; que tous les sites poss\u00e8dent un certain nombre de <a href=\"https:\/\/www.codeur.com\/blog\/outils-gratuits-identifier-liens-casses\/\">liens bris\u00e9s<\/a> menant \u00e0 des erreurs 404.<\/p>\n\n\n\n<p>En revanche, un nombre trop important d&#8217;erreurs peut engendrer un taux de rebond anormalement \u00e9lev\u00e9 et ainsi avoir des cons\u00e9quences sur le comportement de vos visiteurs. Dans ce dernier cas, votre site peut \u00eatre jug\u00e9 de moindre qualit\u00e9, d\u00e9gradant alors votre visibilit\u00e9 sur les moteurs de recherche.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Les outils pour d\u00e9tecter les erreurs 404<\/h2>\n\n\n\n<p>Pour r\u00e9parer les erreurs 404, encore faut-il savoir o\u00f9 elles se trouvent. Des outils gratuits ou payants peuvent vous aider \u00e0 les identifier.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Google Search Console<\/h3>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"257\" src=\"https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2019\/05\/trouver-erreurs-404-search-console-1024x257.png\" alt=\"d\u00e9tecter erreurs 404 search console\" class=\"wp-image-101067\" srcset=\"https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2019\/05\/trouver-erreurs-404-search-console-1024x257.png 1024w, https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2019\/05\/trouver-erreurs-404-search-console-300x75.png 300w, https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2019\/05\/trouver-erreurs-404-search-console-768x193.png 768w, https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2019\/05\/trouver-erreurs-404-search-console-1536x386.png 1536w, https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2019\/05\/trouver-erreurs-404-search-console-2048x514.png 2048w, https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2019\/05\/trouver-erreurs-404-search-console-60x15.png 60w, https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2019\/05\/trouver-erreurs-404-search-console-370x93.png 370w, https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2019\/05\/trouver-erreurs-404-search-console-270x68.png 270w, https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2019\/05\/trouver-erreurs-404-search-console-570x143.png 570w, https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2019\/05\/trouver-erreurs-404-search-console-740x186.png 740w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>Si vous poss\u00e9dez un compte Google Search Console, vous pouvez commencer par ce premier outil gratuit. En vous rendant dans &#8220;Couverture&#8221;, vous verrez toutes les erreurs apparaissant sur votre site.<br>Pour trouver les erreurs 404, il faut regarder de plus pr\u00e8s le bloc &#8220;D\u00e9tails&#8221;.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Dead link checker<\/h3>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img decoding=\"async\" width=\"800\" height=\"350\" src=\"https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2019\/05\/dead-link-checker.jpg\" alt=\"Dead Link Checker\" class=\"wp-image-25538\" srcset=\"https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2019\/05\/dead-link-checker.jpg 800w, https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2019\/05\/dead-link-checker-300x131.jpg 300w, https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2019\/05\/dead-link-checker-768x336.jpg 768w, https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2019\/05\/dead-link-checker-370x162.jpg 370w, https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2019\/05\/dead-link-checker-270x118.jpg 270w, https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2019\/05\/dead-link-checker-570x249.jpg 570w, https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2019\/05\/dead-link-checker-740x324.jpg 740w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure><\/div>\n\n\n<p>Vous pouvez \u00e9galement vous tourner vers l&#8217;outil gratuit <a href=\"https:\/\/www.deadlinkchecker.com\/\" target=\"_blank\" rel=\"noopener noreferrer\">Dead Link Checker<\/a>. Renseignez l&#8217;URL de votre site et vous verrez appara\u00eetre toutes les erreurs. Les pages introuvables sont mises en \u00e9vidences en rouge avec le message &#8220;404 Not Found&#8221;.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Les outils payants<\/h3>\n\n\n\n<p>Enfin, il existe de nombreux outils SEO payants qui peuvent vous aider \u00e0 identifier vos pages en erreur 404. Les outils d&#8217;analyse SEO comme Ahrefs ou SEMRush permettent d&#8217;identifier vos pages en erreur 404. Ces outils proposent en g\u00e9n\u00e9ral un abonnement mensuel assez on\u00e9reux.<\/p>\n\n\n\n<p>Si vous pr\u00e9f\u00e9rez un outil d\u00e9di\u00e9 au crawl, pour analyser vos pages techniquement, vous pouvez utiliser ScreamingFrog. Gratuit jusqu&#8217;\u00e0 500 URLs (id\u00e9al pour les petits sites), il vous permet d&#8217;identifier les erreurs 404 en un clin d&#8217;oeil et d&#8217;obtenir un listing facile \u00e0 traiter.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Comment corriger les erreurs 404&nbsp;?<\/h2>\n\n\n\n<p>Maintenant que vous avez identifi\u00e9 tous vos liens bris\u00e9s, il est temps de les corriger afin de faire dispara\u00eetre le maximum d&#8217;erreurs 404.<\/p>\n\n\n\n<p>Plusieurs solutions s&#8217;offrent \u00e0 vous&nbsp;:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Supprimer le lien rompu de votre contenu<\/li>\n\n\n\n<li>Remplacer le lien rompu&nbsp;: la nouvelle URL doit mener vers un contenu pertinent<\/li>\n\n\n\n<li>Effectuer une redirection 301 si vous modifiez l&#8217;URL&nbsp;: dans ce cas lisez <a href=\"https:\/\/www.redacteur.com\/blog\/guide-pour-creer-redirection-301\/?utm_source=linking-article&amp;utm_campaign=BlogCodeur\" target=\"_blank\" rel=\"noopener noreferrer\">notre guide \u00e0 ce sujet<\/a><\/li>\n\n\n\n<li>Transformer l&#8217;erreur 404 en 410 si la page a \u00e9t\u00e9 supprim\u00e9e d\u00e9finitivement<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img decoding=\"async\" width=\"800\" height=\"375\" src=\"https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2019\/05\/erreur-404-codeur.jpg\" alt=\"Erreur 404 Codeur\" class=\"wp-image-25537\" srcset=\"https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2019\/05\/erreur-404-codeur.jpg 800w, https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2019\/05\/erreur-404-codeur-300x141.jpg 300w, https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2019\/05\/erreur-404-codeur-768x360.jpg 768w, https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2019\/05\/erreur-404-codeur-370x173.jpg 370w, https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2019\/05\/erreur-404-codeur-270x127.jpg 270w, https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2019\/05\/erreur-404-codeur-570x267.jpg 570w, https:\/\/www.codeur.com\/blog\/wp-content\/uploads\/2019\/05\/erreur-404-codeur-740x347.jpg 740w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure><\/div>\n\n\n<p>Quoi que vous fassiez, il est indispensable de cr\u00e9er en parall\u00e8le une page d&#8217;<a href=\"https:\/\/graphiste.com\/blog\/reussir-design-page-erreur-404\" target=\"_blank\" rel=\"noopener\">erreur 404 personnalis\u00e9e<\/a>.<\/p>\n\n\n\n<p>Cette derni\u00e8re doit \u00eatre \u00e0 l&#8217;image de votre marque et doit contenir au moins un lien (au mieux votre menu principal) pour ramener l&#8217;utilisateur perdu vers la page d&#8217;accueil par exemple. L&#8217;id\u00e9e est de proposer une solution au probl\u00e8me et de garder le visiteur sur votre site.<br><br>Si vous rencontrez des difficult\u00e9s au niveau du netlinking sur votre site internet, faites appel \u00e0 un <a href=\"https:\/\/www.codeur.com\/consultant\/netlinking\" target=\"_blank\" rel=\"noopener noreferrer\">professionnel sur Codeur.com<\/a>.<\/p>\n\n\n\n<p>Les erreurs 4XX, comme les erreurs 404 ou les <a href=\"https:\/\/www.codeur.com\/blog\/erreur-403\/\">erreurs 403<\/a> sont \u00e0 \u00e9viter \u00e0 tout prix pour ne pas nuire \u00e0 l&#8217;exp\u00e9rience utilisateur sur votre site et \u00e0 votre SEO.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Les erreurs 404 sont frustrantes et peuvent faire fuir les visiteurs de votre site. Pour maintenir une exp\u00e9rience utilisateur de qualit\u00e9, apprenez \u00e0 d\u00e9tecter et \u00e0 corriger les liens bris\u00e9s. <\/p>\n","protected":false},"author":5,"featured_media":98277,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[11],"tags":[39],"class_list":["post-25530","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-webmarketing","tag-conseils"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Erreurs 404 : comment les d\u00e9tecter et les corriger ?<\/title>\n<meta name=\"description\" content=\"D\u00e9couvrez comment d\u00e9tecter et corriger une erreur 404 sur votre site internet pour \u00e9viter de frustrer les internautes et limiter les pertes SEO.\" \/>\n<meta name=\"robots\" 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