Home

Jan 2, 2017

What Is HTTP/2 And How It Works


HTTP/2 or HTTP Version 2 is the second major version of HTTP network protocol. It is based on SPDY/2 to improve web performance to a great extent. HTTP/2 is developed by the Hypertext Transfer Protocol working group of the Internet Engineering Task Force.

Category:IT 

HTTP/2 or HTTP Version 2 is the second major version of HTTP network protocol. It is based on SPDY/2 to improve web performance to a great extent. HTTP/2 is developed by the Hypertext Transfer Protocol working group of the Internet Engineering Task Force.

HTTP 1.1 was a major move from HTTP 1.0 as it allowed persisted connections (more than one request/response on the same HTTP connection), improved caching, new status code, Enhanced compression support, OPTION method for Cross Origin Resource Sharing in web application and much more. 

HTTP/1.1 has served the Web well for more than fifteen years, but its age is starting to show. Loading a Web page is more resource intensive than ever, and loading all of those assets efficiently is difficult because HTTP practically only allows one outstanding request per TCP connection.

Because of which, many TCP connections are created to issue parallel requests. And since there isn’t any limit on this; too many connections are used most of the times which leads to TCP congestion and unfair resource usage by browsers. It also means lots of duplicate data being transferred “on the wire”.

If too many requests are made, it hurts performance. This has led the industry to a place where it’s considered Best Practice to do things like spriting, data: inlining, domain sharding and concatenation. These hacks are indications of underlying problems in the protocol itself, and cause a number of problems on their own when used.

HTTP/2, on the other hand, enables a more efficient use of network resources and a reduced perception of latency by introducing header field compression and allowing multiple concurrent exchanges on the same connection. It also introduces unsolicited push of representations from servers to clients. This specification is an alternative to, but does not obsolete, the HTTP/1.1 message syntax. HTTP’s existing semantics remains unchanged.

At a high level, HTTP/2:

Read more about HTTP/2 here.

authorarticle: Master3395

image: 

keywords: Http2, Faster, Speed

Previous Article
Next Article

Sponsored Ads:

Discord

Page 1 of 539  >  >>

Check out this Logitech mouse for Mac

Logitech.jpg

Jul 9, 2020 | Category: Apple | Comments

The new keyboard also unveiled.

read more…

Now comes the new video standard that halves the size

picture-smartphone.jpg

Jul 8, 2020 | Category: IT | Comments

But it will unfortunately take many years.

read more…

Launches iPhone video app that does the one thing Apple denies you

apple.webp

Jul 7, 2020 | Category: Apple | Comments

This is the first to do this.

read more…

Page 1 of 539  >  >>