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How HTTP/2 will speed up your web browsing

  1. #1


    Posts : 22,575
    64-bit Windows 10

    How HTTP/2 will speed up your web browsing


    When the last version of the Hypertext Transfer Protocol 1.1 (HTTP/1.1) was approved in 1999, fast computers were running 500MHz Pentium III chips, Bill Clinton was president of the United States, and software engineers were working hard at fixing the Y2K bug. As for the internet, the US Federal Communications Commission defined broadband as 200 kilobits per second (Kbps), and most users connected to it with 56Kbps modems. Things have changed, and HTTP, the web's fundamental protocol, is finally changing with the times, too.

    Click image for larger version
    HTTP/2 in one box. --Google

    After more than two years of consideration, the Internet Engineering Task Force (IETF) has finally approved HTTP/2. HTTP/2 is made up of two specifications: The new protocol itself, and HPACK, which provides header compression for HTTP/2. This revised protocol "will help provide faster user experience for browsing, reduce the amount of bandwidth required, and make the use of secure connections easier".

    HTTP/2 is based in part on an earlier protocol called SPDY (pronounced speedy) from Google, and takes most of its speed improvements from it. There was never a competition between the two; SPDY is HTTP/2's father, not its rival.

    The first way HTTP/2 speeds up traffic is by transferring all data as a binary format instead of HTTP 1.1's four text message styles. Besides making it simpler for web servers and browsers, this new format is more compact, because the more compact a web page is, the less time it takes to be transmitted.

    HTTP/2 uses multiplexing. This makes for a more responsive website by avoiding HTTP 1.1's "head-of-line blocking" problem.
    Read more: How HTTP/2 will speed up your web browsing

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  2. #2


    I enabled SPDY 4 on google chrome (unless it is enabled by default, in which case I probably disabled it). Are there any vulnerabilities I need to worry about?

    I read about the CRIME malware exploit, which peeks at compressed information transferred from sites to the browser and somehow exploits that, but I gather that today's browsers are proof against that particular exploit.
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  3. #3


    FF v36.0 was just released, includes full support for HTTP/2.
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  4. #4


    Hafnarfjörður IS
    Posts : 4,376
    Linux Centos 7, W8.1, W7, W2K3 Server W10


    Hi there

    Web browsing speed isn't per se a problem -- the issues are usually YOUR ISP / Internet connection speed, contention on the remote server (i.e how many users are concurrently trying to access the web site) and the efficiency of the web sites code and your browsers in executing the instructions.

    Most of the talk about "Browser Speed" these days is 100% POINTLESS as about 99% of the problems are not within control of the end user to do anything about it.

    In any case when most browsing is now for video streaming you are going to be totally dependant on how the remote server streams the video and the speed it does so at.

    If it's only streaming at say 2 Mb/s then it doesn't matter if you have the FASTEST OS / CPU / Internet service in the universe --you are still only going to get your video dished up at the remote servers delivery speed.

    This type of stuff reminds me of the "Mega Pixel" wars in the early days of digital photography where a PRO DSLR with "Less MP"'s than a cheap consumer digital camera could of course give an infinitely better photo.

    Cheers
    jimbo
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  5. #5


    HTTP/2 is supposedly compressing data so more can get thru at particular bandwith,that's where "speed" part comes in. On the other hand, computer as to un-compress that on the fly so that transfers onus on receiving end.
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  6. #6


    Covington, La
    Posts : 1,184
    Windows 7 HP 64bit, Windows 8.1 Pro w/Media Center 64BIT


    Quote Originally Posted by yu gnomi View Post
    I enabled SPDY 4 on google chrome (unless it is enabled by default, in which case I probably disabled it). Are there any vulnerabilities I need to worry about?

    I read about the CRIME malware exploit, which peeks at compressed information transferred from sites to the browser and somehow exploits that, but I gather that today's browsers are proof against that particular exploit.
    Quote from linked article.

    Originally, HTTP/2 was going to use GZIP for compression. However, an exploit, Compression Ratio Info-leak Made Easy (CRIME), has made streaming compression protocols such as GZIP unsafe. So, HTTP/2 is using a different, less efficient, but safer security method.
    Jim
      My System SpecsSystem Spec

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