{"id":3132,"date":"2019-12-16T13:16:35","date_gmt":"2019-12-16T12:16:35","guid":{"rendered":"https:\/\/done.lu\/?p=3132"},"modified":"2021-03-25T10:34:58","modified_gmt":"2021-03-25T09:34:58","slug":"balise-alt-ameliorez-limpact-seo-de-vos-images","status":"publish","type":"post","link":"https:\/\/done.lu\/fr\/balise-alt-ameliorez-limpact-seo-de-vos-images\/","title":{"rendered":"Balise ALT : am\u00e9liorez l\u2019impact SEO de vos images."},"content":{"rendered":"<section class=\"wpb-content-wrapper\"><p>[vc_section full_width=\u00a0\u00bbstretch_row_content\u00a0\u00bb parallax=\u00a0\u00bbcontent-moving\u00a0\u00bb parallax_speed_bg=\u00a0\u00bb2.5&Prime; el_id=\u00a0\u00bbintro\u00a0\u00bb css=\u00a0\u00bb.vc_custom_1596635908694{background-image: url(\/wp-content\/uploads\/2020\/08\/BG-STARS.jpg?id=109) !important;}\u00a0\u00bb][vc_row el_id=\u00a0\u00bbiss\u00a0\u00bb css=\u00a0\u00bb.vc_custom_1596635068619{background-image: url(\/wp-content\/uploads\/2020\/08\/Moon.png?id=116) !important;}\u00a0\u00bb][vc_column][vc_single_image image=\u00a0\u00bb113&Prime; img_size=\u00a0\u00bbfull\u00a0\u00bb alignment=\u00a0\u00bbcenter\u00a0\u00bb el_class=\u00a0\u00bbno-space-img\u00a0\u00bb][\/vc_column][\/vc_row][\/vc_section][vc_section el_id=\u00a0\u00bbblog-content\u00a0\u00bb][vc_row][vc_column][vc_column_text el_class=\u00a0\u00bbal-center\u00a0\u00bb]<\/p>\n<h1 style=\"text-align: left;\"><strong><span style=\"color: #79ca30;\">Balise ALT<\/span> : am\u00e9liorez l\u2019impact SEO de vos images.<\/strong><\/h1>\n<p>[\/vc_column_text][vc_column_text el_class=\u00a0\u00bbal-center\u00a0\u00bb]<\/p>\n<p style=\"text-align: left;\">Google ne sachant pas \u2013 pour le moment \u2013 interpr\u00e9ter par lui-m\u00eame les messages que v\u00e9hiculent les images contenues dans les pages d\u2019un site, il doit se reporter aux indications qui figurent dans la <strong>balise ALT<\/strong> pr\u00e9vue \u00e0 cet effet, et, qui si elles sont bien renseign\u00e9es,<strong>\u00a0lui permettent de mieux interpr\u00e9ter et contextualiser le contenu des images d\u2019un site<\/strong>.<\/p>\n<p style=\"text-align: left;\">Les balises ALT influent \u00e9galement sur le r\u00e9f\u00e9rencement puisque les termes qu\u2019elles contiennent sont \u00ab\u00a0lus\u00a0\u00bb et pris en compte par Google pour d\u00e9terminer le positionnement des pages d\u2019un site dans les r\u00e9sultats du moteur de recherche. En choisissant judicieusement les termes qui vont composer vos balises ALT vous allez pouvoir influencer positivement votre SEO.<\/p>\n<p style=\"text-align: left;\"><strong>Voyons comment proc\u00e9der<\/strong>.<\/p>\n<p>[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text el_class=\u00a0\u00bbgreen\u00a0\u00bb]<\/p>\n<h2 class=\"western\" style=\"text-align: left;\"><strong>Balise Alt et Balise Title, quelles diff\u00e9rences ?<\/strong><\/h2>\n<p>[\/vc_column_text][vc_row_inner css=\u00a0\u00bb.vc_custom_1599217462950{margin-bottom: 0px !important;}\u00a0\u00bb][vc_column_inner][vc_column_text]<\/p>\n<h3 style=\"text-align: left;\">La balise Alt<\/h3>\n<p>Elle correspond au <strong>texte alternatif<\/strong> (ALT) d\u2019une image ou d\u2019un visuel sur une page web qui viendra s\u2019afficher \u00e0 la place de l\u2019image, lorsque celle-ci ne peut pas \u00eatre affich\u00e9e. Elle peut \u00e9galement \u00eatre nomm\u00e9e attribut ALT.<\/p>\n<p>La balise Alt doit \u00eatre renseign\u00e9e sur toutes les images, hormis celles purement d\u00e9coratives. Par image il faut entendre tous les fichiers de type .jpg, .gif, png\u2026 qui peuvent correspondre \u00e0 des pictogrammes, photos, logos ou \u00e0 des infographies.[\/vc_column_text][vc_single_image image=\u00a0\u00bb3137&Prime; img_size=\u00a0\u00bbmedium\u00a0\u00bb alignment=\u00a0\u00bbcenter\u00a0\u00bb css=\u00a0\u00bb.vc_custom_1599217341896{margin-bottom: 5px !important;}\u00a0\u00bb][vc_column_text css=\u00a0\u00bb.vc_custom_1601039178525{margin-bottom: 0px !important;}\u00a0\u00bb]<\/p>\n<p style=\"text-align: left;\"><strong>Ce texte aide les moteurs de recherche<\/strong>\u00a0\u00e0 contextualiser et \u00e0 interpr\u00e9ter le contenu des pages d\u2019un site ou d\u2019un blog.Il permet \u00e9galement de <strong>d\u00e9crire l\u2019image \u00e0 l\u2019attention des utilisateurs aveugles ou malvoyants<\/strong> lorsqu&rsquo;ils utilisent la navigation par synth\u00e8se vocale.<\/p>\n<p>[\/vc_column_text][vc_column_text]<\/p>\n<h3 style=\"text-align: left;\">La balise image title.<\/h3>\n<p style=\"text-align: left;\"><strong>C\u2019est un attribut facultatif<\/strong>\u00a0qui n\u2019a pas d\u2019incidence sur le r\u00e9f\u00e9rencement. Le texte contenu dans la balise image Title s\u2019affiche uniquement lorsque l\u2019utilisateur passe la souris dessus (si cette fonction est activ\u00e9e sur le site).<\/p>\n<p>[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text el_class=\u00a0\u00bbgreen\u00a0\u00bb]<\/p>\n<h2 style=\"text-align: left;\"><strong>Comment optimiser le SEO avec la balise Alt ?<\/strong><\/h2>\n<p>[\/vc_column_text][vc_row_inner][vc_column_inner][vc_column_text]<\/p>\n<h3 style=\"text-align: left;\">Nommez vos images en utilisant vos principaux mots cl\u00e9s.<\/h3>\n<ul>\n<li><strong>Utilisez le mot clef principal de la page<\/strong>\u00a0ou ceux des balises titre, H1 ou H2 qui pr\u00e9c\u00e8de votre image.<\/li>\n<li>Donnez du sens \u00e0 votre balise et ne fa\u00eetes pas du bourrage de mots clefs.<\/li>\n<li>Choisissez entre 5 \u00e0 6 mots cl\u00e9s qui vont d\u00e9crire ce que repr\u00e9sente votre image. L\u2019id\u00e9e est de pr\u00e9senter son contenu et sa fonction en 50 \u00e0 70 caract\u00e8res maximum, espaces compris.<\/li>\n<\/ul>\n<p>Dans l\u2019image de droite au lieu d\u2019un laconique \u00ab <a href=\"\/fr\/restaurants-8-conseils-pour-booster-votre-site-web\/\">Restaurant Luxembourg<\/a> \u00bb pr\u00e9f\u00e9rez une description plus riche telle que par exemple : \u00ab\u00a0<strong>Restaurant avec terrasse \u00e0 2 minutes du Kirchberg<\/strong>\u00a0\u00bb. Cette Balise ne comporte que 49 caract\u00e8res et elle contient des mots clefs comme restaurant, terrasse et Kirchberg qui devront immanquablement \u00eatre utilis\u00e9s dans les titres de page et balises Hn (H1, H2, H3\u2026) du site d\u2019un restaurant qui proposerait cette prestation.[\/vc_column_text][vc_single_image image=\u00a0\u00bb3804&Prime; img_size=\u00a0\u00bbfull\u00a0\u00bb add_caption=\u00a0\u00bbyes\u00a0\u00bb alignment=\u00a0\u00bbcenter\u00a0\u00bb css=\u00a0\u00bb.vc_custom_1599217569401{border-bottom-width: 0px !important;}\u00a0\u00bb][vc_column_text]<\/p>\n<h3 class=\"western\" style=\"text-align: left;\">Ne mettez pas la m\u00eame balise alt sur toutes les images d\u2019une m\u00eame page.<\/h3>\n<p style=\"text-align: left;\"><strong>R\u00e9p\u00e9ter les m\u00eames mots clefs sur 3, 4, 5 ou m\u00eame 10 photos n\u2019apporte aucun b\u00e9n\u00e9fice<\/strong> \u00e0 l\u2019internaute, cela risque m\u00eame de contrarier Google qui va consid\u00e9rer que vous voulez lui forcez un peu la main.<\/p>\n<p>[\/vc_column_text][vc_column_text]<\/p>\n<h3 style=\"text-align: left;\">Attention aux caract\u00e8res sp\u00e9ciaux.<\/h3>\n<p style=\"text-align: left;\">Nommez l\u2019image sans majuscule, sans caract\u00e8res accentu\u00e9s et entre deux mots utilisez le s\u00e9parateur (-) plut\u00f4t que l\u2019underscore (_).<\/p>\n<p>[\/vc_column_text][vc_column_text]<\/p>\n<h3 style=\"text-align: left;\">Placez les images de pr\u00e9f\u00e9rence en dessous de vos balises Hn.<\/h3>\n<p style=\"text-align: left;\">Ceci permettra de respecter la logique de lecture des moteurs qui comme nous lisent de gauche \u00e0 droite et de haut en bas.<\/p>\n<p>[\/vc_column_text][vc_column_text]<\/p>\n<h3 style=\"text-align: left;\">Veillez \u00e0 ne pas utiliser des images trop lourdes.<\/h3>\n<p style=\"text-align: left;\">Une image trop lente \u00e0 charger fera bien s\u00fbr <strong>fuir les visiteurs<\/strong> mais aussi les robots de google qui n\u2019attendront pas la fin de son chargement.<\/p>\n<p>[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text el_class=\u00a0\u00bbgreen\u00a0\u00bb]<\/p>\n<h2 style=\"text-align: left;\"><strong>Ne n\u00e9gligez pas les l\u00e9gendes d\u2019images.<\/strong><\/h2>\n<p>[\/vc_column_text][vc_column_text]La l\u00e9gende d\u2019image se place comme sur notre exemple ci-dessous en accompagnement d\u2019une image. Elle est souvent utilis\u00e9e pour citer sa source,\u00a0 mais comme google va lire les termes qu\u2019elle contient elles peuvent \u00eatre \u00e9galement utilis\u00e9es pour am\u00e9liorer le SEO.<\/p>\n<p>Si votre <a href=\"\/fr\/competences\/design\/\">charte graphique<\/a> le permet et si cela apporte plus de sens \u00e0 votre page, vous pouvez placer une l\u00e9gende qui d\u00e9crit le contenu de l\u2019image au-dessus ou au-dessous de celle-ci.\u00a0<strong>Vous augmenterez ainsi le contexte s\u00e9mantique de votre page et vous renforcerez vos mots clefs\u00a0<\/strong>car ceux-ci seront lus par Google.<\/p>\n<p>La r\u00e8gle pour r\u00e9diger des l\u00e9gendes efficaces est la m\u00eame que pour les balises ALT, veillez toutefois \u00e0 ne pas utiliser le m\u00eame texte pour la l\u00e9gende et pour la balise ALT.[\/vc_column_text][vc_single_image image=\u00a0\u00bb3801&Prime; img_size=\u00a0\u00bbfull\u00a0\u00bb add_caption=\u00a0\u00bbyes\u00a0\u00bb alignment=\u00a0\u00bbcenter\u00a0\u00bb css=\u00a0\u00bb.vc_custom_1599217609775{padding-bottom: 0px !important;}\u00a0\u00bb][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text el_class=\u00a0\u00bbgreen\u00a0\u00bb]<\/p>\n<h2 style=\"text-align: left;\"><strong>Vos CTA ont aussi le droit \u00e0 une balise !<\/strong><\/h2>\n<p>[\/vc_column_text][vc_column_text]<\/p>\n<p style=\"text-align: left;\">Ce n\u2019est pas parce que les Call-to-Action (CTA) ne sont en g\u00e9n\u00e9ral que de simples boutons sans r\u00e9el int\u00e9r\u00eat graphique que vous devez vous abstenir de les nommer par une balise. Rappelez-vous en effet qu\u2019un des r\u00f4les des balises ALT est de proposer un texte si l\u2019image ne peut \u00eatre affich\u00e9e.Si votre Bouton CTA invite \u00e0 prendre contact ou demander un devis gratuit vous comprendrez facilement l\u2019int\u00e9r\u00eat de fournir cette information.<\/p>\n<p>[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text el_class=\u00a0\u00bbgreen\u00a0\u00bb]<\/p>\n<h2 style=\"text-align: left;\"><strong>Conclusion.<\/strong><\/h2>\n<p>[\/vc_column_text][vc_column_text]R\u00e9put\u00e9es il y a dix ans pour ne permettre que le r\u00e9f\u00e9rencement dans Google image, l<strong>e r\u00f4le de la balise Alt a \u00e9volu\u00e9 pour en faire maintenant un \u00e9l\u00e9ment \u00e0 part enti\u00e8re<\/strong>\u00a0aux yeux de ceux qui s\u2019engagent dans une strat\u00e9gie d\u2019optimisation SEO On-page de leur site web.<\/p>\n<p>L\u2019importance du choix des images et des balises Alt ont m\u00eame \u00e9t\u00e9 cit\u00e9s comme plus importants dans le SEO que des crit\u00e8res comme le choix des mots clefs d\u2019une Url ou les ancres de texte dans un sondage men\u00e9 aupr\u00e8s de plus de 1500 professionnels du SEO en ao\u00fbt 2019.[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_raw_html]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[\/vc_raw_html][\/vc_column][\/vc_row][\/vc_section]<\/p>\n<\/section>","protected":false},"excerpt":{"rendered":"<p>[vc_section full_width=\u00a0\u00bbstretch_row_content\u00a0\u00bb parallax=\u00a0\u00bbcontent-moving\u00a0\u00bb parallax_speed_bg=\u00a0\u00bb2.5&Prime; el_id=\u00a0\u00bbintro\u00a0\u00bb css=\u00a0\u00bb.vc_custom_1596635908694{background-image: url(\/wp-content\/uploads\/2020\/08\/BG-STARS.jpg?id=109) !important;}\u00a0\u00bb][vc_row el_id=\u00a0\u00bbiss\u00a0\u00bb css=\u00a0\u00bb.vc_custom_1596635068619{background-image: url(\/wp-content\/uploads\/2020\/08\/Moon.png?id=116) !important;}\u00a0\u00bb][vc_column][vc_single_image image=\u00a0\u00bb113&Prime; img_size=\u00a0\u00bbfull\u00a0\u00bb alignment=\u00a0\u00bbcenter\u00a0\u00bb el_class=\u00a0\u00bbno-space-img\u00a0\u00bb][\/vc_column][\/vc_row][\/vc_section][vc_section el_id=\u00a0\u00bbblog-content\u00a0\u00bb][vc_row][vc_column][vc_column_text el_class=\u00a0\u00bbal-center\u00a0\u00bb] Balise ALT : am\u00e9liorez l\u2019impact SEO de vos<span class=\"excerpt-hellip\"> [\u2026]<\/span><\/p>\n","protected":false},"author":3,"featured_media":4874,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[23],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Balise ALT : am\u00e9liorez l\u2019impact SEO de vos images.<\/title>\n<meta name=\"description\" content=\"Google ne sachant pas \u2013 pour le moment \u2013 interpr\u00e9ter par lui-m\u00eame les messages que v\u00e9hiculent les images contenues dans les pages d\u2019un site, il doit se reporter aux indications qui figurent dans la balise ALT pr\u00e9vue \u00e0 cet effet.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/done.lu\/fr\/balise-alt-ameliorez-limpact-seo-de-vos-images\/\" 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