{"id":3802,"date":"2026-07-22T16:17:47","date_gmt":"2026-07-22T16:17:47","guid":{"rendered":"https:\/\/disoh.com\/support\/what-is-a-cname-record-and-when-should-you-use-one\/"},"modified":"2026-07-22T16:17:47","modified_gmt":"2026-07-22T16:17:47","password":"","slug":"quest-ce-quun-enregistrement-cname-et-dans-quels-cas-faut-il-lutiliser","status":"publish","type":"docs","link":"https:\/\/disoh.com\/fr\/support\/what-is-a-cname-record-and-when-should-you-use-one\/","title":{"rendered":"Qu'est-ce qu'un enregistrement CNAME et quand faut-il l'utiliser ?"},"content":{"rendered":"<p>Un enregistrement CNAME (Canonical Name) est un type d'entr\u00e9e DNS qui redirige un nom de domaine vers un autre nom de domaine, plut\u00f4t que vers une adresse IP. Consid\u00e9rez-le comme un alias : au lieu d'indiquer \u201c ce nom correspond \u00e0 cette adresse IP \u201d, un enregistrement CNAME indique \u201c ce nom n'est en r\u00e9alit\u00e9 qu'un autre nom pour d\u00e9signer celui-l\u00e0 \u201d. Les enregistrements CNAME sont extr\u00eamement courants lorsqu'il s'agit de connecter des services tiers \u00e0 votre domaine.<\/p>\n<h2>En quoi un enregistrement CNAME diff\u00e8re-t-il d'un enregistrement A ?<\/h2>\n<p>La principale diff\u00e9rence r\u00e9side dans ce vers quoi pointe chaque enregistrement. Un enregistrement A associe directement un nom \u00e0 une adresse IP num\u00e9rique, tandis qu\u2019un enregistrement CNAME associe un nom \u00e0 un autre nom d\u2019h\u00f4te, qui est ensuite r\u00e9solu en une adresse IP. Cela est important car si l\u2019adresse IP de la cible venait \u00e0 changer, un enregistrement CNAME continuerait de fonctionner automatiquement, alors qu\u2019un enregistrement A devrait \u00eatre mis \u00e0 jour. En r\u00e9sum\u00e9 :<\/p>\n<ul>\n<li><strong>Un record :<\/strong> nom de domaine vers une adresse IP (par exemple, votredomaine.com vers 192.0.2.10).<\/li>\n<li><strong>CNAME :<\/strong> d'un nom vers un autre (par exemple, www.yourdomain.com vers yourdomain.com).<\/li>\n<\/ul>\n<h2>Utilisations courantes des enregistrements CNAME<\/h2>\n<ul>\n<li><strong>La version www :<\/strong> en redirigeant www.yourdomain.com vers votre domaine racine.<\/li>\n<li><strong>Outils tiers :<\/strong> des services connexes tels que les plateformes de marketing par e-mail, les services d'assistance ou les outils de cr\u00e9ation de sites web qui vous demandent d'ajouter un enregistrement CNAME.<\/li>\n<li><strong>V\u00e9rification :<\/strong> Certains fournisseurs utilisent un enregistrement CNAME pour v\u00e9rifier que vous \u00eates bien le propri\u00e9taire du nom de domaine.<\/li>\n<li><strong>Sous-domaines pour les services externes :<\/strong> rediriger shop.votredomaine.com vers une plateforme de boutique en ligne h\u00e9berg\u00e9e.<\/li>\n<\/ul>\n<h2>Comment ajouter un enregistrement CNAME<\/h2>\n<ul>\n<li>Connectez-vous \u00e0 votre gestionnaire DNS ou \u00e0 votre panneau de configuration.<\/li>\n<li>Ouvrir le <strong>DNS<\/strong> ou <strong>\u00c9diteur de zones<\/strong> section.<\/li>\n<li>Cr\u00e9er un nouveau <strong>CNAME<\/strong> enregistrement.<\/li>\n<li>Saisissez le nom du sous-domaine dans le champ \u00ab h\u00f4te \u00bb (par exemple, <em>www<\/em> ou <em>boutique<\/em>).<\/li>\n<li>Saisissez le nom d'h\u00f4te cible dans le champ \u00ab Valeur \u00bb, exactement tel qu'il vous a \u00e9t\u00e9 fourni par le service.<\/li>\n<li>Enregistrez et pr\u00e9voyez un d\u00e9lai de propagation.<\/li>\n<\/ul>\n<h2>R\u00e8gles importantes \u00e0 retenir<\/h2>\n<p>Il existe quelques restrictions qu'il est utile de conna\u00eetre. Un enregistrement CNAME ne peut pas \u00eatre utilis\u00e9 sur le domaine racine (le simple \u201c votredomaine.com \u201d) dans un DNS standard ; c'est pourquoi le domaine racine utilise g\u00e9n\u00e9ralement un enregistrement A, tandis que \u201c www \u201d utilise un enregistrement CNAME. De plus, un nom d'h\u00f4te associ\u00e9 \u00e0 un enregistrement CNAME ne doit pas comporter d'autres enregistrements portant le m\u00eame nom, car cela entra\u00eenerait des conflits.<\/p>\n<h2>D\u00e9pannage<\/h2>\n<ul>\n<li><strong>Le service ne v\u00e9rifie pas :<\/strong> v\u00e9rifiez que la valeur cible correspond exactement, sans aucune faute de frappe \u00e0 la fin.<\/li>\n<li><strong>Erreurs de conflit :<\/strong> supprimer tous les enregistrements en double correspondant au m\u00eame h\u00f4te.<\/li>\n<li><strong>Pas encore r\u00e9solu :<\/strong> Pr\u00e9voyez un d\u00e9lai de propagation et v\u00e9rifiez \u00e0 nouveau \u00e0 l'aide d'une requ\u00eate DNS.<\/li>\n<\/ul>\n<h2>Besoin d'aide ?<\/h2>\n<p>Si un service tiers vous demande un enregistrement CNAME et que vous ne savez pas o\u00f9 le placer, notre \u00e9quipe d'assistance peut s'en charger pour vous via le chat en direct.<\/p>","protected":false},"excerpt":{"rendered":"<p>A CNAME record (Canonical Name record) is a type of DNS entry that points one domain name to another domain name, rather than to an IP address. Think of it as an alias: instead of saying &#8220;this name lives at this IP&#8221;, a CNAME says &#8220;this name is really just another name for that one&#8221;. [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","meta":{"footnotes":""},"doc_category":[13],"doc_tag":[],"class_list":["post-3802","docs","type-docs","status-publish","hentry","doc_category-domains"],"year_month":"2026-10","word_count":408,"total_views":"184","reactions":{"happy":"0","normal":"0","sad":"0"},"author_info":{"name":"Jorn","author_nicename":"jorn","author_url":"https:\/\/disoh.com\/fr\/author\/jorn\/"},"doc_category_info":[{"term_name":"Domains","term_url":"https:\/\/disoh.com\/fr\/docs-category\/domains\/"}],"doc_tag_info":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>What Is a CNAME Record and When Should You Use One? &#8211; Disoh<\/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:\/\/disoh.com\/fr\/soutien\/quest-ce-quun-enregistrement-cname-et-dans-quels-cas-faut-il-lutiliser\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What Is a CNAME Record and When Should You Use One? &#8211; Disoh\" \/>\n<meta property=\"og:description\" content=\"A CNAME record (Canonical Name record) is a type of DNS entry that points one domain name to another domain name, rather than to an IP address. 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