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July 31, 2018 3:00 PM
How we scaled nginx and saved the world 54 years every day
10 million websites, apps and APIs use Cloudflare to give their users a speed boost. At peak we serve more than 10 million requests a second across our 151 data centers. Over the years we’ve made many modifications to our version of NGINX to handle our growth. This is blog post i...
December 14, 2017 4:09 PM
There’s Always Cache in the Banana Stand
We’re happy to announce that we now support all HTTP Cache-Control response directives. This puts powerful control in the hands of you, the people running origin servers around the world. ...
December 13, 2017 2:00 PM
The Curious Case of Caching CSRF Tokens
It is now commonly accepted as fact that web performance is critical for business. Slower sites can affect conversion rates on e-commerce stores, they can affect your sign-up rate on your SaaS service and lower the readership of your content....
April 25, 2017 7:45 AM
Ecommerce websites on Cloudflare: best practices
Cloudflare provides numerous benefits to ecommerce sites, including advanced DDOS protection and an industry-leading Web Application Firewall (WAF) that helps secure your transactions and protect customers’ private data....
April 14, 2017 3:00 PM
Understanding Our Cache and the Web Cache Deception Attack
About a month ago, security researcher Omer Gil published the details of an attack that he calls the Web Cache Deception attack. It works against sites that sit behind a reverse proxy (like Cloudflare) and are misconfigured in a particular way....
March 08, 2017 2:01 PM
An AMP validator you can cURL
Cloudflare has been a long time supporter of AMP, an open-source markup language 1.5 billion web pages are using to accelerate their mobile web performance. Cloudflare runs Ampersand....
December 12, 2016 5:15 PM
Caching Anonymous Page Views
The load time of your website not only affects your search engine rankings, but is also correlated to the conversion rate on your site....
August 19, 2015 3:46 PM
Introducing a Powerful Way to Purge Cache on CloudFlare: Purge by Cache-Tag
Today CloudFlare is introducing a new way to purge the cache using Cache-Tags. Cache-Tags are assigned to cached content via a Cache-Tag response header, and are stored as metadata with cached objects so that global purges take only seconds, targeting a granular, finite set of ca...
July 07, 2015 4:20 PM
Increasing Cache Hit Rates with Query String Sort
At CloudFlare, we care a lot about serving requests as fast as possible. Files can be served much faster when already in CloudFlare’s cache....
March 13, 2013 4:52 PM
Cloudflare Keeps TheBayLights.org Running Bright
When you think of San Francisco, undoubtedly one bridge in particular comes to mind - The Golden Gate Bridge....
February 01, 2013 10:27 PM
Edge Cache Expire TTL: Easiest way to override any existing headers
CloudFlare makes caching easy. Our service automatically determines what files to cache based on file extensions. Performance benefits kick in automatically....
December 06, 2012 9:19 AM
Efficiently compressing dynamically generated web content
With the widespread adoption of high bandwidth Internet connections in the home, offices and on mobile devices, limitations in available bandwidth to download web pages have largely been eliminated....
August 05, 2012 7:33 PM
Always Online v.2
The video on CloudFlare's home page promises that we will keep your web page online "even if your server goes down." It's a feature we dubbed "Always Online" and, when it works, it's magical. The problem is, Always Online doesn't always work....
July 14, 2012 5:51 AM
Introducing: Single File Cache Purge
CloudFlare has supported a way to purge your cache for the last year. Unfortunately, it was all or nothing. While that, for practical purposes, didn't cause a significant performance hit for most websites....