{"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":"que-es-un-registro-cname-y-cuando-se-debe-utilizar","status":"publish","type":"docs","link":"https:\/\/disoh.com\/es\/support\/what-is-a-cname-record-and-when-should-you-use-one\/","title":{"rendered":"\u00bfQu\u00e9 es un registro CNAME y cu\u00e1ndo se debe utilizar?"},"content":{"rendered":"<p>Un registro CNAME (registro de nombre can\u00f3nico) es un tipo de entrada DNS que redirige un nombre de dominio a otro nombre de dominio, en lugar de a una direcci\u00f3n IP. Piensa en \u00e9l como un alias: en lugar de decir \u201ceste nombre se encuentra en esta IP\u201d, un CNAME indica \u201ceste nombre no es m\u00e1s que otro nombre para aquel\u201d. Los registros CNAME son muy habituales a la hora de conectar servicios de terceros a tu dominio.<\/p>\n<h2>En qu\u00e9 se diferencia un registro CNAME de un registro A<\/h2>\n<p>La diferencia clave radica en a qu\u00e9 apunta cada registro. Un registro A asocia un nombre directamente a una direcci\u00f3n IP num\u00e9rica, mientras que un CNAME asocia un nombre a otro nombre de host, que a su vez se resuelve en una direcci\u00f3n IP. Esto es importante porque, si la direcci\u00f3n IP del destino cambiara en alg\u00fan momento, un CNAME seguir\u00eda funcionando autom\u00e1ticamente, mientras que un registro A tendr\u00eda que actualizarse. En resumen:<\/p>\n<ul>\n<li><strong>Un r\u00e9cord:<\/strong> nombre a direcci\u00f3n IP (por ejemplo, tudominio.com a 192.0.2.10).<\/li>\n<li><strong>CNAME:<\/strong> cambiar un nombre por otro (por ejemplo, www.yourdomain.com por yourdomain.com).<\/li>\n<\/ul>\n<h2>Usos habituales de los registros CNAME<\/h2>\n<ul>\n<li><strong>La versi\u00f3n web:<\/strong> dirigir www.yourdomain.com a tu dominio principal.<\/li>\n<li><strong>Herramientas de terceros:<\/strong> servicios de conexi\u00f3n como plataformas de marketing por correo electr\u00f3nico, servicios de asistencia t\u00e9cnica o creadores de p\u00e1ginas web que te piden que a\u00f1adas un CNAME.<\/li>\n<li><strong>Verificaci\u00f3n:<\/strong> Algunos proveedores utilizan un CNAME para confirmar que eres el titular del dominio.<\/li>\n<li><strong>Subdominios para servicios externos:<\/strong> redirigir shop.tudominio.com a una plataforma de tienda online alojada.<\/li>\n<\/ul>\n<h2>C\u00f3mo a\u00f1adir un registro CNAME<\/h2>\n<ul>\n<li>Inicia sesi\u00f3n en tu gestor de DNS o en tu panel de control.<\/li>\n<li>Abra el <strong>DNS<\/strong> o <strong>Editor de zonas<\/strong> secci\u00f3n.<\/li>\n<li>Crear un nuevo <strong>CNAME<\/strong> registro.<\/li>\n<li>Introduce el nombre del subdominio en el campo \u00abhost\u00bb (por ejemplo, <em>www<\/em> o <em>tienda<\/em>).<\/li>\n<li>Introduce el nombre de host de destino en el campo \u00abValor\u00bb, tal y como lo ha facilitado el servicio.<\/li>\n<li>Gu\u00e1rdalo y deja que se asiente.<\/li>\n<\/ul>\n<h2>Normas importantes que hay que recordar<\/h2>\n<p>Hay un par de limitaciones que conviene conocer. Un CNAME no se puede utilizar en el dominio ra\u00edz (el simple \u201ctudominio.com\u201d) en el DNS est\u00e1ndar, por lo que el dominio ra\u00edz suele utilizar un registro A, mientras que \u201cwww\u201d utiliza un CNAME. Adem\u00e1s, un nombre de host que tenga un CNAME no debe tener otros registros con el mismo nombre, ya que esto provoca conflictos.<\/p>\n<h2>Soluci\u00f3n de problemas<\/h2>\n<ul>\n<li><strong>El servicio no se verifica:<\/strong> Confirma que el valor de destino coincide exactamente, sin errores tipogr\u00e1ficos al final.<\/li>\n<li><strong>Errores de conflicto:<\/strong> Elimina cualquier registro duplicado correspondiente al mismo host.<\/li>\n<li><strong>A\u00fan sin resolver:<\/strong> Espera a que se complete la propagaci\u00f3n y vuelve a comprobarlo mediante una consulta DNS.<\/li>\n<\/ul>\n<h2>\u00bfNecesita ayuda?<\/h2>\n<p>Si un servicio de terceros te solicita un CNAME y no sabes d\u00f3nde introducirlo, nuestro equipo de asistencia puede a\u00f1adirlo correctamente por ti a trav\u00e9s del chat en directo.<\/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":"2026-07","word_count":408,"total_views":"51","reactions":{"happy":"0","normal":"0","sad":"0"},"author_info":{"name":"Jorn","author_nicename":"jorn","author_url":"https:\/\/disoh.com\/es\/author\/jorn\/"},"doc_category_info":[{"term_name":"Domains","term_url":"https:\/\/disoh.com\/es\/docs-category\/domains\/"}],"doc_tag_info":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.1 - 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\/es\/soporte\/que-es-un-registro-cname-y-cuando-se-debe-utilizar\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\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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