{"id":65750,"date":"2018-06-12T16:23:11","date_gmt":"2018-06-12T14:23:11","guid":{"rendered":"https:\/\/internetrepublica.com\/?p=65750"},"modified":"2018-06-13T09:50:12","modified_gmt":"2018-06-13T07:50:12","slug":"http2-vs-http","status":"publish","type":"post","link":"https:\/\/internetrepublica.com\/blog\/http2-vs-http\/","title":{"rendered":"HTTP\/2 vs HTTP"},"content":{"rendered":"<p>El nuevo protocolo HTTP\/2 existe desde hace unos a\u00f1os, pero se est\u00e1 adoptando en muchos sites de forma gradual. Este nuevo protocolo permite que la respuesta de informaci\u00f3n que ofrece el servidor tras una petici\u00f3n sea mucho mas r\u00e1pida y segura.<\/p>\n<p>&nbsp;<\/p>\n<h2>\u00bfPor qu\u00e9 implementar este nuevo protocolo?<\/h2>\n<p>La cantidad de contenido que muestra una web ha cambiado y por lo tanto, las peticiones realizadas al servidor son cada vez mucho mas complejas: css, im\u00e1genes, v\u00eddeos, javascript, etc. Solicitar toda esta informaci\u00f3n de golpe hace que la respuesta que\u00a0esperamos\u00a0vaya mucho mas lenta.\u00a0Con http, podemos enviar una sola petici\u00f3n por conexi\u00f3n TCP, es decir, hasta que no llegue dicha petici\u00f3n no puede salir la siguiente, y como consecuencia nos da un tiempo de respuesta muy alto.<\/p>\n<p>&nbsp;<\/p>\n<p>El nuevo protocolo HTTP\/2 divide las peticiones en peque\u00f1os bloques, y de esta manera puede mandar mas de una petici\u00f3n por conexi\u00f3n TCP, carg\u00e1ndolas en paralelos sin esperaras a que se cargue para poder mandar otra petici\u00f3n. Gracias a esta\u00a0\u00a0implementaci\u00f3n se puede mejorar el rendimiento entre el 15-20% de una web. Y\u00a0como ya sabemos, la carga de velocidad afecta al SEO por lo que\u00a0ganar\u00edamos\u00a0un punto a favor con la implementaci\u00f3n de HTTP\/2.<\/p>\n<p>&nbsp;<\/p>\n<p>El protocolo HTTP2 tiene <strong>tres caracter\u00edsticas b\u00e1sicas:<\/strong><\/p>\n<ul>\n<li>Uso del formato binario y compresi\u00f3n para cabeceras, que permite\u00a0reducir la informaci\u00f3n que se transmite. La compresi\u00f3n de las cabeceras permiten obtener tiempos de respuesta m\u00e1s r\u00e1pidos y una mejora notable en el WPO, especialmente en m\u00f3viles.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul>\n<li>Proactividad: Los servidores se adelantan a la\u00a0petici\u00f3n del cliente y solicitan\u00a0informaci\u00f3n por ellos mismos. Pueden enviar elementos que componen la p\u00e1gina como CSS, Javascript u otros de manera que cuando el cliente recibe el documento ya dispone de estos recursos. Adem\u00e1s puede guardar en cache estos elementos para reusarlos en otros documentos y as\u00ed reducir la carga.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul>\n<li>Peticiones y respuestas as\u00edncronas y en paralelo (multiplexado). En http, la transmisi\u00f3n de recursos es secuencial, pero en http2 las peticiones se realizan en paralelo, lo cual evita el bloqueo de la descarga de recursos. (En http, la descarga de un recurso se inicia cuando se termina la descarga del recurso anterior)<\/li>\n<\/ul>\n<h3><\/h3>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-large wp-image-65757\" src=\"https:\/\/internetrepublica.com\/wp-content\/uploads\/2018\/06\/Imagen1-1024x392.png\" alt=\"\" width=\"1024\" height=\"392\" srcset=\"https:\/\/internetrepublica.com\/blog\/wp-content\/uploads\/2018\/06\/Imagen1-1024x392.png 1024w, https:\/\/internetrepublica.com\/blog\/wp-content\/uploads\/2018\/06\/Imagen1-300x115.png 300w, https:\/\/internetrepublica.com\/blog\/wp-content\/uploads\/2018\/06\/Imagen1-768x294.png 768w, https:\/\/internetrepublica.com\/blog\/wp-content\/uploads\/2018\/06\/Imagen1-700x268.png 700w, https:\/\/internetrepublica.com\/blog\/wp-content\/uploads\/2018\/06\/Imagen1.png 1892w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/p>\n<p>&nbsp;<\/p>\n<h3>HTTPS, HTTP y HTTP2<\/h3>\n<p>Para implementar un protocolo http2, es necesario contar previamente con un certificado SSL y un protocolo HTTPS.<\/p>\n<p>&nbsp;<\/p>\n<p>Para implementarlo, solicitaremos a nuestro proveedor de hosting que habilite el protocolo HTTP\/2 \u00a1As\u00ed de sencillo!<\/p>\n<p>&nbsp;<\/p>\n<p>\u00a1Ya sabes qu\u00e9 hacer para que tu web vuele!<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>El nuevo protocolo HTTP\/2 existe desde hace unos a\u00f1os, pero se est\u00e1 adoptando en muchos sites de forma gradual. Este nuevo protocolo permite que la&#8230;<\/p>\n","protected":false},"author":39,"featured_media":65761,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"content-type":"","inline_featured_image":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-65750","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sin-categorizar"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>El nuevo protocolo HTTP\/2 - Internet Rep\u00fablica<\/title>\n<meta name=\"description\" content=\"Nueva forma de que tu web vaya a una velocidad de carga mucho m\u00e1s r\u00e1pida. 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