{"id":4728,"date":"2026-05-09T10:06:27","date_gmt":"2026-05-09T10:06:27","guid":{"rendered":"https:\/\/rimanagency.com\/alt-text-length-checker-image-accessibility-seo\/"},"modified":"2026-05-09T10:06:27","modified_gmt":"2026-05-09T10:06:27","slug":"alt-text-length-checker-image-accessibility-seo","status":"publish","type":"page","link":"https:\/\/rimanagency.com\/fr\/alt-text-length-checker-image-accessibility-seo\/","title":{"rendered":"V\u00e9rificateur de longueur du texte alternatif \u2014 Accessibilit\u00e9 des images et r\u00e9f\u00e9rencement"},"content":{"rendered":"<style>.rt-h{background:linear-gradient(135deg,#f1f5e8,#e8efdb);border-radius:14px;padding:32px;margin:0 0 24px;text-align:center}.rt-h h1{margin:0 0 10px;font-size:28px;color:#4a6320}.rt-g{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:0 0 24px}.rt-f,.rt-o{background:#fff;border:1px solid #e0e6d8;border-radius:10px;padding:22px}.rt-f h3,.rt-o h3{margin:0 0 14px;color:#4a6320;font-size:18px}.rt-f label{display:block;font-size:13px;color:#516048;font-weight:600;margin:10px 0 6px}.rt-f input,.rt-f select,.rt-f textarea{width:100%;padding:9px;border:1px solid #d4dac6;border-radius:6px;font-size:14px;box-sizing:border-box;font-family:inherit}.rt-btn{background:#719430;color:#fff;border:none;padding:11px 20px;border-radius:6px;font-weight:700;cursor:pointer;width:100%;margin-top:14px;font-size:15px}.rt-btn:hover{background:#4a6320}.rt-o-big{font-size:38px;font-weight:800;color:#719430;text-align:center;margin:6px 0}.rt-o-row{display:flex;justify-content:space-between;padding:9px 0;border-bottom:1px solid #f0f3e8;font-size:14px}.rt-o-row:last-child{border:none}.rt-o-row b{color:#4a6320}.rt-cta{background:linear-gradient(135deg,#719430,#4a6320);color:#fff;border-radius:14px;padding:32px;text-align:center;margin:30px 0}.rt-cta a{background:#fff;color:#4a6320;padding:12px 28px;border-radius:6px;font-weight:700;text-decoration:none;display:inline-block;margin-top:14px}.rt-code{background:#1e1e1e;color:#a3c163;padding:14px;border-radius:8px;font-family:Consolas,monospace;font-size:12px;white-space:pre-wrap;word-break:break-all;max-height:300px;overflow:auto}@media(max-width:768px){.rt-g{grid-template-columns:1fr}}<\/style>\n<div class=\"rt-h\">\n<h1>V\u00e9rificateur de longueur de texte alternatif<\/h1>\n<p>V\u00e9rifiez la longueur, la qualit\u00e9 descriptive et la conformit\u00e9 du texte alternatif des images en mati\u00e8re d&#039;accessibilit\u00e9.<\/p>\n<\/div>\n<div class=\"rt-g\">\n<div class=\"rt-f\">\n<h3>Texte alternatif<\/h3>\n<p><label>Texte alternatif<\/label><input type=\"text\" id=\"alt-text\" placeholder=\"Tableau de bord marketing pr\u00e9sentant un graphique de croissance sur 12 mois\"><button class=\"rt-btn\" onclick=\"calcAlt()\">V\u00e9rifier<\/button><\/div>\n<div class=\"rt-o\">\n<h3>Score de qualit\u00e9<\/h3>\n<div class=\"rt-o-big\" id=\"alt-big\">\u2014<\/div>\n<p style=\"text-align:center;color:#516048;font-size:13px;margin:0 0 18px\" id=\"alt-v\">Coller le texte alternatif<\/p>\n<div class=\"rt-o-row\"><span>Personnages<\/span><b id=\"alt-c\">\u2014<\/b><\/div>\n<div class=\"rt-o-row\"><span>Mots<\/span><b id=\"alt-w\">\u2014<\/b><\/div>\n<div class=\"rt-o-row\"><span>Verdict<\/span><b id=\"alt-vd\">\u2014<\/b><\/div>\n<div class=\"rt-o-row\"><span>Conseils<\/span><b id=\"alt-tips\">\u2014<\/b><\/div>\n<\/div>\n<\/div>\n<p><script>function calcAlt(){function update(){var t=document.getElementById(\"alt-text\").value.trim();var c=t.length;var w=(t.match(\/\\S+\/g)||[]).length;var hasFiller=\/(image of|picture of|photo of|graphic of)\/i.test(t);var v=c===0?\"Empty\":c>125?\"Too long \u2014 trim to under 125\":c>=50&&c<=125?\"Excellent\":c>=15?\"Acceptable\":\"Too short\";var tips=hasFiller?\"Remove filler like \\\"image of\\\"\":w<5?\"Add more descriptive context\":\"Looks good\";document.getElementById(\"alt-big\").textContent=c+\" \/ 125\";document.getElementById(\"alt-v\").textContent=v;document.getElementById(\"alt-c\").textContent=c;document.getElementById(\"alt-w\").textContent=w;document.getElementById(\"alt-vd\").textContent=v;document.getElementById(\"alt-tips\").textContent=tips}update();document.getElementById(\"alt-text\").addEventListener(\"input\",update);}<\/script><\/p>\n<h2>Le texte alternatif est destin\u00e9 aux lecteurs d&#039;\u00e9cran et au r\u00e9f\u00e9rencement naturel.<\/h2>\n<p>Le texte alternatif d\u00e9crit l&#039;image aux utilisateurs de lecteurs d&#039;\u00e9cran et aux robots des moteurs de recherche. Un bon texte alternatif est pr\u00e9cis (5 \u00e0 15 mots), descriptif et \u00e9vite les expressions g\u00e9n\u00e9riques comme \u201c image de \u201d, car les lecteurs d&#039;\u00e9cran identifient d\u00e9j\u00e0 l&#039;\u00e9l\u00e9ment comme une image.<\/p>\n<h2>Foire aux questions<\/h2>\n<p><strong>Chaque image doit-elle avoir un texte alternatif\u00a0?<\/strong><br \/>Les images d\u00e9coratives (purement visuelles) peuvent utiliser l&#039;attribut alt=&quot;&quot; pour que les lecteurs d&#039;\u00e9cran les ignorent. Toutes les images importantes doivent comporter un texte alternatif descriptif.<\/p>\n<div class=\"rt-cta\">\n<h3 style=\"margin:0 0 6px\">Vous souhaitez un audit d&#039;accessibilit\u00e9 et de r\u00e9f\u00e9rencement (SEO) pour chaque image\u00a0?<\/h3>\n<p style=\"margin:0;opacity:.95\">L&#039;agence Riman propose des programmes d&#039;accessibilit\u00e9 et de r\u00e9f\u00e9rencement technique.<\/p>\n<p><a href=\"\/fr\/contact\/\">Obtenez un audit<\/a><\/div>","protected":false},"excerpt":{"rendered":"<p>Alt Text Length Checker Validate image alt text for length, descriptive quality, and accessibility compliance. Alt Text Alt textCheck Quality Score \u2014 Paste alt text Characters\u2014 Words\u2014 Verdict\u2014 Tips\u2014 Alt text is for screen readers and SEO Alt text describes the image to users with screen readers and to search engine crawlers. Good alt text [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-4728","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Alt Text Length Checker \u2014 Image Accessibility &amp; SEO - Riman Agency<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/rimanagency.com\/fr\/alt-text-length-checker-image-accessibility-seo\/\" \/>\n<meta property=\"og:locale\" content=\"fr_CA\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Alt Text Length Checker \u2014 Image Accessibility &amp; SEO - Riman Agency\" \/>\n<meta property=\"og:description\" content=\"Alt Text Length Checker Validate image alt text for length, descriptive quality, and accessibility compliance. 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