LuaJIT Hacking: Getting next() out of the NYI list
February 21, 2017 1:40 PM
At Cloudflare we’re heavy users of LuaJIT and in the past have sponsored many improvements to its performance. ...
Firebolt: the fastest, safest ads on the web
January 30, 2017 7:46 PM
Cloudflare’s mission is to help build a better Internet. That means a faster, more secure, open Internet world-wide. We have millions of customers using our services like free SSL, an advanced WAF....
Introducing Accelerated Mobile Links: Making the Mobile Web App-Quick
January 12, 2017 6:00 AM
We've predicted that more than half of the traffic to Cloudflare's network will come from mobile devices. Even if they are formatted to be displayed on a small screen, the mobile web is built on traditional web protocols and technologies that were designed for desktop....
A Very WebP New Year from Cloudflare
December 21, 2016 2:00 PM
Cloudflare has an automatic image optimization feature called Polish, available for paid plan users. It recompresses images and stripping excess data, speeding up delivery to browsers....
Caching Anonymous Page Views
December 12, 2016 5:15 PM
The load time of your website not only affects your search engine rankings, but is also correlated to the conversion rate on your site....
MORE POSTS
July 20, 2016 12:27 AM
Ask Some HTTP/2 Pros The Hard Questions
We're big fans of HTTP/2 and our customers make up the majority of HTTP/2 enabled domains today. HTTP/2 is a key part of the modern web, and its growth and adoption is changing how websites and applications are built....
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June 24, 2016 4:31 PM
Economical With The Truth: Making DNSSEC Answers Cheap
We launched DNSSEC late last year and are already signing 56.9 billion DNS record sets per day. At this scale, we care a great deal about compute cost....
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June 10, 2016 1:08 PM
Optimizing TLS over TCP to reduce latency
The layered nature of the Internet (HTTP on top of some reliable transport (e.g. TCP), TCP on top of some datagram layer (e.g. IP), IP on top of some link (e.g. Ethernet)) has been very important in its development. ...
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May 13, 2016 1:11 PM
Using HTTP/2 Server Push with PHP
Two weeks ago CloudFlare announced that it was supporting HTTP/2 Server Push for all our customers. By simply adding a Link header to an HTTP response specifying preload CloudFlare would automatically push items to web browsers that support Server Push....
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May 13, 2016 9:55 AM
Open sourcing our NGINX HTTP/2 + SPDY code
In December, we released HTTP/2 support for all customers and on April 28 we released HTTP/2 Server Push support as well....
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May 05, 2016 1:00 PM
Everybody gets WebSockets
Two summers ago, with a seemed-big-at-the-time network of 28 datacenters, not long after introducing Medellin, CloudFlare introduced support for WebSockets, initially for our Enterprise customers....
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April 19, 2016 4:15 PM
Today Is A Big Day For Page Rules
Today we're releasing a whole suite of upgrades to page rules: API support, additional settings, pausing a page rule and a mobile-friendly design. ...
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April 11, 2016 12:23 PM
The curious case of slow downloads
Some time ago we discovered that certain very slow downloads were getting abruptly terminated and began investigating whether that was a client (i.e. web browser) or server (i.e. us) problem....
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April 04, 2016 11:50 AM
It takes two to ChaCha (Poly)
Not long ago we introduced support for TLS cipher suites based on the ChaCha20-Poly1305 AEAD, for all our customers. Back then those cipher suites were only supported by the Chrome browser and Google's websites, but were in the process of standardization. ...
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March 23, 2016 4:03 PM
TLS Certificate Optimization: The Technical Details behind "No Browser Left Behind"
Back in early December we announced our "no browser left behind" initiative to the world. Since then, we have served well over 500 billion SHA-1 certificates to visitors that otherwise would not have been able to communicate securely with our customers’ sites using HTTPS....
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February 03, 2016 5:16 PM
CloudFlare’s Impact On The HTTP/2 “Universe”
CloudFlare released HTTP/2 support for all customers on December 3rd, 2015. Now, two months later, it's time to take a look at the impact of this release on the HTTP/2 "universe"....
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December 21, 2015 2:30 PM
What's inside net/http? Late binding in the Go standard library
It's well known that we're heavy users of the Go programming language at CloudFlare. Our work often involves delving into the standard library source code to understand internal code paths, error handling and performance characteristics....
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December 11, 2015 7:44 PM
HTTP/2 Demo: Under the Hood
At first glance, the potential performance improvements of HTTP/1.1 versus HTTP/2 on our demo page may seem a bit hard to believe. So, we put together a technical explanation of how this demo actually works. ...
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December 10, 2015 12:10 PM
HTTP/2 For Web Developers
HTTP/2 changes the way web developers optimize their websites. In HTTP/1.1, it’s become common practice to eek out an extra 5% of page load speed by hacking away at your TCP connections and HTTP requests with techniques like spriting, inlining, domain sharding, and concatenation....
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