{"id":7944,"date":"2015-09-07T08:30:09","date_gmt":"2015-09-07T06:30:09","guid":{"rendered":"http:\/\/daniel.haxx.se\/blog\/?p=7944"},"modified":"2015-09-07T09:25:59","modified_gmt":"2015-09-07T07:25:59","slug":"http2-115-days-with-the-rfc","status":"publish","type":"post","link":"https:\/\/daniel.haxx.se\/blog\/2015\/09\/07\/http2-115-days-with-the-rfc\/","title":{"rendered":"HTTP\/2 – 115 days with the RFC"},"content":{"rendered":"

\"http2\"<\/a>Back in March 2015, I asked friends<\/a> for a forecast on how much HTTP traffic that will be HTTP\/2 by the end of the year and we arrived at about 10%<\/strong> as a group. Are we getting there? Remember that RFC 7540<\/a> was published on May 15th<\/a>, so it is still less than 4 months old!<\/p>\n

The HTTP\/2 implementations page<\/a> now lists almost 40 reasonably up-to-date implementations.<\/p>\n

Browsers<\/h2>\n

Since then, all<\/em> browsers used by the vast majority of people have stated that they have or will have HTTP\/2 support soon (Firefox, Chrome, Edge, Safari and Opera – including Firefox and Chrome on Android and Safari on iPhone). Even OS support is coming: on iOS 9<\/a> the support is coming as we speak and the windows HTTP library is getting HTTP\/2 support. The adoption rate so far is not limited by the clients.<\/p>\n

Unfortunately, the WGet summer of code project to add HTTP\/2 support failed<\/a>.<\/p>\n

(I have high hopes for getting a HTTP\/2 enabled curl into Debian soon as they’ve just packaged a new enough nghttp2 library<\/a>. If things go well, this leads the way for other distros too.)<\/p>\n

Servers<\/h2>\n

Server-side we see Apache’s mod_h2 module<\/a> ship in a public release soon (possibly in a httpd version 2.4<\/a> series release), nginx has this alpha patch I’ve already mentioned<\/a> and Apache Traffic Server<\/a> (ATS) has already shipped h2 support for a while and my friends tell me that 6.0 has fixed numerous of their initial bugs. IIS 10 for Windows 10 was released on July 29th 2015<\/a> and supports HTTP\/2. H2O<\/a> and nghttp2<\/a> have shipped HTTP\/2 for a long time by now. I would say that the infrastructure offering is starting to look really good! Around the end of the year it’ll look even better than today.<\/p>\n

Of course we’re still seeing HTTP\/2 only deployed over HTTPS so HTTP\/2 cannot currently get more popular than HTTPS is but there’s also no real reason for a site using HTTPS today to not provide HTTP\/2 within the near future. I think there’s a real possibility that we go above 10% use already in 2015 and at least for browser traffic to HTTPS sites we should be able to that almost every single HTTPS site will go HTTP\/2 during 2016.<\/p>\n

The delayed start of letsencrypt<\/a> has also delayed more and easier HTTPS adoption.<\/p>\n

Still catching up<\/h2>\n

I’m waiting to see the intermediaries really catch up. Varnish, Squid and HAProxy I believe all are planning to support it to at least some extent, but I’ve not yet seen them release a version with HTTP\/2 enabled.<\/p>\n

I hear there’s still not a good HTTP\/2 story on Android and its stock HTTP library, although you can in fact run libcurl<\/a> HTTP\/2 enabled even there, and I believe there are other stand-alone libs for Android that support HTTP\/2 too, like OkHttp<\/a> for example.<\/p>\n

Firefox numbers<\/h2>\n

\"Firefox<\/a>The latest stable Firefox release right now is version 40. It counts<\/a> 13%<\/strong> HTTP\/2 responses among all HTTP responses. Counted as a share of the transactions going over HTTPS, the share is roughly 27%<\/strong>! (Since Firefox 40 counts 47% of the transactions as HTTPS.)<\/p>\n

This is certainly showing a share of the high volume sites of course, but there are also several very high volume sites that have not yet gone HTTP\/2, like Facebook, Yahoo, Amazon, Wikipedia and more…<\/p>\n

The IPv6 comparison<\/h2>\n

Right, it is not a fair comparison, but… The first IPv6 RFC<\/a> has been out for almost twenty years and the adoption is right now at about 8.4% globally<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"

Back in March 2015, I asked friends for a forecast on how much HTTP traffic that will be HTTP\/2 by the end of the year and we arrived at about 10% as a group. Are we getting there? Remember that RFC 7540 was published on May 15th, so it is still less than 4 months … Continue reading HTTP\/2 – 115 days with the RFC<\/span> →<\/span><\/a><\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7,393,13,6,45],"tags":[292,33,86,369,412,379,316],"class_list":["post-7944","post","type-post","status-publish","format-standard","hentry","category-curl","category-firefox-floss","category-net","category-floss","category-web","tag-chrome","tag-curl-and-libcurl","tag-firefox","tag-http2","tag-https","tag-nghttp2","tag-proxy"],"_links":{"self":[{"href":"https:\/\/daniel.haxx.se\/blog\/wp-json\/wp\/v2\/posts\/7944","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/daniel.haxx.se\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/daniel.haxx.se\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/daniel.haxx.se\/blog\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/daniel.haxx.se\/blog\/wp-json\/wp\/v2\/comments?post=7944"}],"version-history":[{"count":38,"href":"https:\/\/daniel.haxx.se\/blog\/wp-json\/wp\/v2\/posts\/7944\/revisions"}],"predecessor-version":[{"id":8093,"href":"https:\/\/daniel.haxx.se\/blog\/wp-json\/wp\/v2\/posts\/7944\/revisions\/8093"}],"wp:attachment":[{"href":"https:\/\/daniel.haxx.se\/blog\/wp-json\/wp\/v2\/media?parent=7944"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/daniel.haxx.se\/blog\/wp-json\/wp\/v2\/categories?post=7944"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/daniel.haxx.se\/blog\/wp-json\/wp\/v2\/tags?post=7944"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}