{"id":1098,"date":"2025-08-15T13:34:22","date_gmt":"2025-08-15T11:34:22","guid":{"rendered":"https:\/\/www.innospira.fr\/?p=1098"},"modified":"2025-08-19T11:34:16","modified_gmt":"2025-08-19T09:34:16","slug":"llms-txt-le-nouveau-standard-pour-optimiser-la-visibilite-avec-les-ia","status":"publish","type":"post","link":"https:\/\/www.innospira.fr\/index.php\/2025\/08\/15\/llms-txt-le-nouveau-standard-pour-optimiser-la-visibilite-avec-les-ia\/","title":{"rendered":"llms.txt &#8211; le nouveau standard pour optimiser la visibilit\u00e9 avec les IA"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Depuis septembre 2024, le fichier <strong>llms.txt<\/strong> s\u2019impose comme une innovation majeure pour l\u2019optimisation des intelligences artificielles g\u00e9n\u00e9ratives (ChatGPT, Claude, Gemini, etc.). Ce fichier permet de <strong>guider activement les mod\u00e8les de langage<\/strong> vers leurs contenus les plus pertinents.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Contrairement au fichier <strong>robots.txt<\/strong> qui bloque l&rsquo;acc\u00e8s, le <strong>llms.txt<\/strong> <strong>oriente les IA<\/strong>. Am\u00e9liorant ainsi la qualit\u00e9 des r\u00e9ponses g\u00e9n\u00e9r\u00e9es et la visibilit\u00e9 de vos pages dans les r\u00e9sultats des moteurs de recherche et des assistants conversationnels.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.innospira.fr\/index.php\/2024\/11\/17\/creer-une-application-sans-coder-avec-bolt-new\/\">D\u00e9velopper son application rapidement<\/a> ou <a href=\"https:\/\/www.innospira.fr\/index.php\/2024\/12\/21\/creer-un-site-internet-facilement-avec-une-ia\/\">cr\u00e9er son site internet avec l&rsquo;IA<\/a>, c&rsquo;est top ! Pense apr\u00e8s \u00e0 cr\u00e9er ce fichier \ud83d\ude09, c&rsquo;est rapide et les gains peuvent \u00eatre int\u00e9ressants.<\/p>\n\n\n\n<h2 class=\"wp-block-heading has-large-font-size\">Qu\u2019est-ce que le fichier llms.txt ?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Le fichier <strong>llms.txt<\/strong> fonctionne comme un <strong>\u00ab\u00a0sitemap.xml d\u00e9di\u00e9 aux IA\u00a0\u00bb<\/strong>. Il r\u00e9pond \u00e0 un enjeu cl\u00e9 des grands mod\u00e8les de langage (LLM) : leurs <strong>fen\u00eatres contextuelles limit\u00e9es<\/strong> peinent \u00e0 analyser efficacement des sites web complexes, satur\u00e9s de menus, publicit\u00e9s ou scripts JavaScript.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large has-custom-border\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/www.innospira.fr\/wp-content\/uploads\/2025\/08\/LLMs.txt_vs_Robots.txt-1024x576.webp\" alt=\"LLMs.txt vs Robots.txt\" class=\"wp-image-1116\" style=\"border-radius:10px\" srcset=\"https:\/\/www.innospira.fr\/wp-content\/uploads\/2025\/08\/LLMs.txt_vs_Robots.txt-1024x576.webp 1024w, https:\/\/www.innospira.fr\/wp-content\/uploads\/2025\/08\/LLMs.txt_vs_Robots.txt-300x169.webp 300w, https:\/\/www.innospira.fr\/wp-content\/uploads\/2025\/08\/LLMs.txt_vs_Robots.txt-768x432.webp 768w, https:\/\/www.innospira.fr\/wp-content\/uploads\/2025\/08\/LLMs.txt_vs_Robots.txt-1536x864.webp 1536w, https:\/\/www.innospira.fr\/wp-content\/uploads\/2025\/08\/LLMs.txt_vs_Robots.txt-1320x743.webp 1320w, https:\/\/www.innospira.fr\/wp-content\/uploads\/2025\/08\/LLMs.txt_vs_Robots.txt.webp 1920w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">R\u00e9capitulatif : llms.txt vs robots.txt<\/figcaption><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Comment \u00e7a marche ?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">En fournissant une <strong>version \u00e9pur\u00e9e et structur\u00e9e<\/strong> de vos contenus (au format Markdown ou JSON), le llms.txt permet aux IA de :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Cibler l&rsquo;information utile<\/strong> (articles, FAQ, pages produits).<\/li>\n\n\n\n<li><strong>Ignorer le \u00ab\u00a0bruit\u00a0\u00bb<\/strong> (banni\u00e8res, pop-ups, code superflu).<\/li>\n\n\n\n<li><strong>Optimiser leur traitement<\/strong> en r\u00e9duisant la charge de donn\u00e9es inutiles.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Un gain concret : jusqu\u2019\u00e0 43 % de tokens \u00e9conomis\u00e9s<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A noter que selon une \u00e9tude de <a class=\"\" href=\"https:\/\/rankscale.ai\/blog\/how-to-add-llmstxt-for-ai-search-optimization-in-record-time\" target=\"_blank\" rel=\"noreferrer noopener\">RankScale<\/a>, cette structuration permet aux mod\u00e8les de langage de <strong>consommer moins de ressources<\/strong> tout en am\u00e9liorant la pr\u00e9cision de leurs r\u00e9ponses. Un atout majeur pour les sites riches en contenu.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Structure et impl\u00e9mentation techniques optimales<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">La structure du fichier llms.txt suit un format Markdown sp\u00e9cifique et normalis\u00e9. Le fichier doit \u00eatre plac\u00e9 \u00e0 la racine de votre domaine (https:\/\/votresite.com\/llms.txt) et respecter une hi\u00e9rarchie pr\u00e9cise :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Titre H1 obligatoire<\/strong>&nbsp;: Nom de votre projet ou site<\/li>\n\n\n\n<li><strong>Citation en blockquote<\/strong>&nbsp;: R\u00e9sum\u00e9 concis du projet avec informations cl\u00e9s<\/li>\n\n\n\n<li><strong>Sections organis\u00e9es par H2<\/strong>&nbsp;: Cat\u00e9gories de contenu avec liens vers ressources<\/li>\n\n\n\n<li><strong>Section \u00ab\u00a0Optional\u00a0\u00bb<\/strong>&nbsp;: Informations secondaires pouvant \u00eatre ignor\u00e9es si n\u00e9cessaire<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Les bonnes pratiques incluent l&rsquo;utilisation d&rsquo;un langage&nbsp;<strong>concis et clair<\/strong>, l&rsquo;\u00e9vitement des structures HTML complexes, et la mise \u00e0 jour r\u00e9guli\u00e8re du fichier. Il est crucial de maintenir le fichier sous 10KB pour un chargement optimal et de s&rsquo;assurer que les liens pointent vers des versions Markdown de vos pages importantes.<\/p>\n\n\n\n<h2 class=\"wp-block-heading has-large-font-size\">Exemple de fichier llms.txt<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Voici un mod\u00e8le relativement simple sur lequel tu peux te baser pour cr\u00e9er un fichier llms.txt.<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:flex;align-items:center;padding:10px 0px 10px 16px;margin-bottom:-2px;width:100%;text-align:left;background-color:#2b2b2b;color:#c7c7c7\">Markdown<\/span><span role=\"button\" tabindex=\"0\" style=\"color:#D4D4D4;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><pre class=\"code-block-pro-copy-button-pre\" aria-hidden=\"true\"><textarea class=\"code-block-pro-copy-button-textarea\" tabindex=\"-1\" aria-hidden=\"true\" readonly># Titre du site\n\n> Description optionnelle ici\n\nDes d\u00e9tails peuvent \u00eatre aussi ajout\u00e9s ici.\n\n## Nom d'une section\n\n- &#91;Titre du lien&#93;(https:\/\/link_url)\n- &#91;Titre du lien&#93;(https:\/\/link_url)\n- &#91;Titre du lien&#93;(https:\/\/link_url)\n\n## Nom d'une autre section\n\n- &#91;Titre du lien&#93;(https:\/\/link_url)\n- &#91;Titre du lien&#93;(https:\/\/link_url)\n- &#91;Titre du lien&#93;(https:\/\/link_url)<\/textarea><\/pre><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki dark-plus\" style=\"background-color: #1E1E1E\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #569CD6; font-weight: bold\"># Titre du site<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #6A9955\">&gt;<\/span><span style=\"color: #D4D4D4\"> Description optionnelle ici<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D4D4D4\">Des d\u00e9tails peuvent \u00eatre aussi ajout\u00e9s ici.<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #569CD6; font-weight: bold\">## Nom d&#39;une section<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #6796E6\">-<\/span><span style=\"color: #D4D4D4\"> &#91;<\/span><span style=\"color: #CE9178\">Titre du lien<\/span><span style=\"color: #D4D4D4\">&#93;(<\/span><span style=\"color: #D4D4D4; text-decoration: underline\">https:\/\/link_url<\/span><span style=\"color: #D4D4D4\">)<\/span><\/span>\n<span class=\"line\"><span style=\"color: #6796E6\">-<\/span><span style=\"color: #D4D4D4\"> &#91;<\/span><span style=\"color: #CE9178\">Titre du lien<\/span><span style=\"color: #D4D4D4\">&#93;(<\/span><span style=\"color: #D4D4D4; text-decoration: underline\">https:\/\/link_url<\/span><span style=\"color: #D4D4D4\">)<\/span><\/span>\n<span class=\"line\"><span style=\"color: #6796E6\">-<\/span><span style=\"color: #D4D4D4\"> &#91;<\/span><span style=\"color: #CE9178\">Titre du lien<\/span><span style=\"color: #D4D4D4\">&#93;(<\/span><span style=\"color: #D4D4D4; text-decoration: underline\">https:\/\/link_url<\/span><span style=\"color: #D4D4D4\">)<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #569CD6; font-weight: bold\">## Nom d&#39;une autre section<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #6796E6\">-<\/span><span style=\"color: #D4D4D4\"> &#91;<\/span><span style=\"color: #CE9178\">Titre du lien<\/span><span style=\"color: #D4D4D4\">&#93;(<\/span><span style=\"color: #D4D4D4; text-decoration: underline\">https:\/\/link_url<\/span><span style=\"color: #D4D4D4\">)<\/span><\/span>\n<span class=\"line\"><span style=\"color: #6796E6\">-<\/span><span style=\"color: #D4D4D4\"> &#91;<\/span><span style=\"color: #CE9178\">Titre du lien<\/span><span style=\"color: #D4D4D4\">&#93;(<\/span><span style=\"color: #D4D4D4; text-decoration: underline\">https:\/\/link_url<\/span><span style=\"color: #D4D4D4\">)<\/span><\/span>\n<span class=\"line\"><span style=\"color: #6796E6\">-<\/span><span style=\"color: #D4D4D4\"> &#91;<\/span><span style=\"color: #CE9178\">Titre du lien<\/span><span style=\"color: #D4D4D4\">&#93;(<\/span><span style=\"color: #D4D4D4; text-decoration: underline\">https:\/\/link_url<\/span><span style=\"color: #D4D4D4\">)<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Le titre du site et la description peut coller avec ce que tu g\u00e9n\u00e8res pour le SEO. Les sections peuvent \u00eatre plus au moins nombreuses, mais je te conseille de mettre les pages les plus importantes.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Aussi, il y a diff\u00e9rent cas d&rsquo;usage pour le fichier llms.txt, par exemple pour un restaurant, on y inclura les horaires d&rsquo;ouvertures, \u00e9ventuellement la carte des menus et pourquoi pas les tarifs \ud83d\ude09. De cette fa\u00e7on, l&rsquo;IA aura les informations les plus importantes pour sugg\u00e9rer le restaurant en question (<a href=\"https:\/\/llmstxt.org\/domains.html#restaurants\" target=\"_blank\" rel=\"noreferrer noopener\">exemple de llms.txt pour un restaurant<\/a>).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Depuis septembre 2024, le fichier llms.txt s\u2019impose comme une innovation majeure pour l\u2019optimisation des intelligences artificielles g\u00e9n\u00e9ratives (ChatGPT, Claude, Gemini, [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":1119,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"linkedin_posted":true,"linkedin_posted_date":"2025-10-25 23:54:48","footnotes":""},"categories":[25],"tags":[32],"class_list":["post-1098","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ia-developpement","tag-developpement"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>llms.txt - le nouveau standard pour optimiser la visibilit\u00e9 avec les IA<\/title>\n<meta name=\"description\" content=\"Le fichier llms.txt, le nouveau standard pour guider les IA comme ChatGPT vers vos contenus cl\u00e9s. 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