{"id":21412,"date":"2016-08-24T16:22:56","date_gmt":"2016-08-24T16:22:56","guid":{"rendered":"http:\/\/cloudinary_adds_support_for_http_2"},"modified":"2016-08-24T16:22:56","modified_gmt":"2016-08-24T16:22:56","slug":"cloudinary_adds_support_for_http_2","status":"publish","type":"post","link":"https:\/\/cloudinary.com\/blog\/cloudinary_adds_support_for_http_2","title":{"rendered":"Cloudinary now delivers images and videos over HTTP\/2"},"content":{"rendered":"

Even though websites have changed dramatically over the years \u2013 from simple text-based pages to advanced in-browser apps full of images and videos \u2013 the underlying HTTP protocol really hasn\u2019t changed – until recently, with the approval of the HTTP\/2 protocol by the IETF<\/a>. Today Cloudinary is proud to announce, as part of a CDN infrastructure upgrade, general availability of HTTP\/2 support in our image and video management solution. This will help you optimize the user experience on your app or website even more.<\/p>\n

The benefits of delivering your site images and videos over HTTP\/2 are: improving website performance; reducing the amount of bandwidth required by supporting header compression; improving latency and making it easier for developers to use optimized connections, by eliminating the need for domain sharding and other subtle performance tricks.<\/p>\n

As more and more sites begin to adopt the technology<\/a>, HTTP\/2 is generating a lot of buzz in the industry. Most browsers already support HTTP\/2 (though some only do so through over HTTPS) and it is designed to be backwards compatible with older versions.<\/p>\n

While the adoption of HTTP\/2 was slow initially, since January 2016 more sites have announced plans to move to HTTP\/2 or are offering true support of the protocol. For example, at the beginning of May 2016 both Wikipedia and Blogspot announced that their sites were now supporting HTTP\/2.<\/p>\n

\"HTTP\/2<\/a>\nSource: http:\/\/isthewebhttp2yet.com\/measurements\/adoption.html<\/a><\/p>\n

The highest gains in performance for those moving to HTTP\/2 will be those with image heavy pages. And the more images on a single page, the more improvement that will be seen. The reason: With HTTP\/2, instead of requesting images sequentially or creating many parallel connections, the browser makes a single connection to the server and optimizes the requests to all images over a single connection. A great (although extreme) example of the performance differences between HTTP\/2 and its predecessor HTTP\/1.1 can be found in this demo on the Akamai website<\/a>.<\/p>\n

\"HTTP2<\/a>\nSource: https:\/\/kinsta.com\/learn\/what-is-http2\/<\/a><\/p>\n

We began beta testing HTTP\/2 about six months ago, and the results are impressive. Based on our measurements, the average improvement in page load time is close to 10%.<\/p>\n

Ok, I want it – how do I get it?<\/h2>\n

For current Cloudinary users, there\u2019s nothing you need to do to benefit from our HTTP\/2 enhancements. As of today, we\u2019ve upgraded our CDN integrations, so that every url delivered from Cloudinary\u2019s standard CDN layer (using hostnames res.cloudinary.com or cloudname-res.cloudinary.com), in the HTTPS protocol, offers HTTP\/2 as a default connection method to the browser that calls it.<\/p>\n

Even if your website\u2019s HTML itself is not delivered via HTTP\/2, you will still gain a performance boost, as all the images on your site that are delivered via Cloudinary will be now pipelined through a single optimized connection.<\/p>\n

To check whether your images are delivered via HTTP\/2 install this Chrome extension<\/a>, which indicates the newest protocols.<\/p>\n

If you have a specialized or private CDN setup, contact your account manager or support@cloudinary.com<\/a> to discuss your options.<\/p>\n

Obsolete optimizations<\/h2>\n

There are two optimizations that Cloudinary supports that HTTP\/2 makes obsolete: domain sharding and sprites.<\/p>\n

If your site is delivered via HTTPS and you are using one of our client libraries, consider turning off CDN subdomains in your Cloudinary configuration (stop setting secure_cdn_subdomain<\/code> to true<\/code>).<\/p>\n

If you use sprites for performance reasons, you may see a benefit in using separate images, as multiple images will re-use the connection to load faster (but not as fast) as a sprite, but caching can improve as replacing a single image doesn\u2019t require generating a new sprite.<\/p>\n

To sum it up<\/h2>\n

Content delivery is an important part of Cloudinary\u2019s end-to-end image and video management solution. We constantly upgrade and monitor the CDN-based delivery of assets, and HTTP\/2 is the latest feature we\u2019ve added. Keep watching this blog for further announcements regarding the CDN layer in the future.<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"","protected":false},"author":41,"featured_media":21413,"comment_status":"","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_cloudinary_featured_overwrite":false,"footnotes":""},"categories":[1],"tags":[264],"class_list":["post-21412","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized","tag-security"],"acf":[],"yoast_head":"\nCloudinary now delivers images and videos over HTTP\/2<\/title>\n<meta name=\"description\" content=\"Every image delivered from Cloudinary's standard CDN layer, in the HTTPS protocol, offers HTTP\/2 as a default connection method to the browser that calls it.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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