Starting today, the internet is going to get so much faster
Today, CloudFlare becomes the first company to widely activate "HTTP/2 Server Push" - a technology that lets webpages and apps load as much as 15% faster, potentially shaving precious seconds, without you having to do a darn thing.That kind of speed is going to translate into a huge shift in the web and how apps are built.
"I don't think the internet knows how this will be used," says CloudFlare CEO Matthew Prince.To be clear, this massive web speed boost won't happen all at once, says Prince. It'll take at least a year for it to come to full fruition. But HTTP/2 Server Push is a massive step in the right direction, as it encourages the entire tech industry to take notice of this technology.
To understand why the wait for a wider web, you need to know a little history.
A little historyWhen you visit a website, your browser talks to a server in language we call "HTTP," or "hypertext transfer protocol." That's why there's an "http://" in front of every site you visit - it's to let your browser know that it's a webpage you want, and not some other kind of web service.Even if you're not on a browser, many apps use HTTP to talk to servers on the backend and get their data for display. If you're online at all, ever, HTTP is unavoidable.
In 1997, HTTP 1.1 became the new - and still dominant - standard for serving webpages. It works fine (clearly, given that you're reading this in a browser or an app). But it's struggled to keep pace with the modern internet, with photos, videos, and other interactive content presenting a bottleneck as it loads page elements one at a time. That's why you sometimes have to wait for a video to finish loading before photos appear on a page, or vice versa.
Developers started to rely on their own gumption to get around HTTP's limitations."Everybody had worked around its weaknesses with all kinds of tricks," says CloudFlare programmer (and Silicon Valley legend) John Graham-Cumming.
The most important example: Google built its own advanced version of HTTP, called SPDY (pronounced "speedy"), that could do clever tricks like load multiple pieces of a page simultaneously. The technology world liked SPDY so much that it adopted a modified version of it as a new HTTP 2.0 standard in February last year.SPDY and HTTP/2 on their own are fine enhancements over HTTP 1.1, says Prince. But the really exciting part is that HTTP/2 also enables support for a feature called "Server Push," which actually lets a web server "talk" to the browser and "explain" the next thing it should load.
Google Chrome and Mozilla Firefox fully support Server Push, and Apple's Safari browser has beta support. Microsoft has promised it's coming to its Edge browser. More support will probably come with time."This is a sea change in the way the web works," says Graham-Cumming. "This upends the web."
The problem is that the onus is on developers to actually go through with it and activate HTTP/2 and the Server Push feature. It's not hard, necessarily, but it requires a little bit of work and it's been slow to get widespread adoption.This is where CloudFlare comes back in.
Flare upCloudFlare exerts a disproportionate level of influence on the internet for a venture-backed startup, even one with investors like Google and Microsoft.
CloudFlare is what you'd call a "content delivery network," or CDN. Basically, when you visit a website using CloudFlare, it detects where you're at, and routes you to the closest server.
Not only does it mean a better user experience - it can make the difference between life and death when it comes to trading on NASDAQ, or even a high stakes game of League of Legends. Prince boasts that it handles somewhere between 8 to 10% of all web traffic, and 7% of the top million most popular websites.In other words, CloudFlare already handles much of the hard work when a browser is talking to a website. That means that with CloudFlare doing the legwork to get Server Push up and running, it makes it much easier for its many thousands of users to adopt.
So that should lead to a rush of websites tripping over themselves to activate it and capitalize on a better and faster user experience. And with that rush comes a critical mass, Prince says, as everyone everywhere looks to adopt Server Push. In fact, Prince says that CloudFlare has done it before, in 2014, pushing the adoption of the SSL security technology.It'll take at least a year to play out, Prince says, but the end result is a better, faster web for everybody, and the potential for a new class of web applications. In the meanwhile, you might slowly notice your favorite sites loading a little faster.
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