The story of one latency spike
November 19, 2015 3:05 PM
A customer reported an unusual problem with our CloudFlare CDN: our servers were responding to some HTTP requests slowly. Extremely slowly. 30 seconds slowly....
Announcing Universal DNSSEC: Secure DNS for Every Domain
November 10, 2015 1:56 PM
CloudFlare launched just five years ago with the goal of building a better Internet. That’s why we are excited to announce that beginning today, anyone on CloudFlare can secure their traffic with DNSSEC in just one simple step....
Results of experimenting with Brotli for dynamic web content
October 23, 2015 2:24 PM
Compression is one of the most important tools CloudFlare has to accelerate website performance. Compressed content takes less time to transfer, and consequently reduces load times....
Doubling the speed of jpegtran with SIMD
October 08, 2015 10:10 AM
It is no secret that at CloudFlare we put a great effort into accelerating our customers' websites. One way to do it is to reduce the size of the images on the website. This is what our Polish product is for. ...
Mobile Ad Networks as DDoS Vectors: A Case Study
September 25, 2015 4:01 PM
CloudFlare servers are constantly being targeted by DDoS'es. We see everything from attempted DNS reflection attacks to L7 HTTP floods involving large botnets....
MORE POSTS
September 07, 2015 9:52 AM
Kernel bypass
In two previous posts we've discussed how to receive 1M UDP packets per second and how to reduce the round trip time. We did the experiments on Linux and the performance was very good considering it's a general purpose operating system....
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September 02, 2015 10:15 AM
Test all the things: IPv6, HTTP/2, SHA-2
CloudFlare constantly tries to stay on the leading edge of Internet technologies so that our customers' web sites use the latest, fastest, most secure protocols. For example, in the past we've enabled IPv6 and SPDY/3.1....
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September 01, 2015 5:04 PM
Simple Helix chooses CloudFlare to ignite white-hot Magento performance
Some months ago, we made a big bet on partnering with CloudFlare for performance improvements and website security for our Magento hosting customers. Customer experience is core to our business and relying on another company is a major deal. ...
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August 31, 2015 10:31 PM
Railgun v5 has landed: better, faster, lighter
Three years ago we launched Railgun, CloudFlare's origin network optimizer. Railgun allows us to cache the uncacheable to accelerate the connection between CloudFlare and our customers' origin servers. ...
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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...
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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....
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July 03, 2015 1:41 PM
Blue Light Special: Ensuring fast global configuration changes
CloudFlare operates a huge global network of servers that proxy our customers' web sites, operate as caches, inspect requests to ensure they are not malicious, deflect DDoS attacks and handle one of the largest authoritative DNS systems in the world. ...
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June 30, 2015 11:38 AM
How to achieve low latency with 10Gbps Ethernet
In a recent blog post we explained how to tweak a simple UDP application to maximize throughput. This time we are going to optimize our UDP application for latency. Fighting with latency is a great excuse to discuss modern features of multiqueue NICs. ...
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May 08, 2015 10:02 AM
Google PageSpeed Service customers: migrate to CloudFlare for acceleration
This week, Google announced that its hosted PageSpeed Service will be shut down. Everyone using the hosted service needs to move their site elsewhere before August 3 2015 to avoid breaking their website....
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May 07, 2015 10:06 AM
Go crypto: bridging the performance gap
It is no secret that we at CloudFlare love Go. We use it, and we use it a LOT. There are many things to love about Go, but what I personally find appealing is the ability to write assembly code!...
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April 13, 2015 2:02 PM
CloudFlare is now a Google Cloud Platform Technology Partner
We’re excited to announce that CloudFlare has just been named a Google Cloud Platform Technology Partner. So what does this mean?...
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March 30, 2015 9:21 AM
Improving compression with a preset DEFLATE dictionary
A few years ago Google made a proposal for a new HTTP compression method, called SDCH (SanDwiCH). The idea behind the method is to create a dictionary of long strings that appear throughout many pages of the same domain (or popular search results)....
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February 24, 2015 2:20 PM
TLS Session Resumption: Full-speed and Secure
At CloudFlare, making web sites faster and safer at scale is always a driving force for innovation. We introduced “Universal SSL” to dramatically increase the size of the encrypted web....
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February 23, 2015 8:22 PM
Do the ChaCha: better mobile performance with cryptography
CloudFlare is always trying to improve customer experience by adopting the latest and best web technologies so that our customers (and their visitors) have a fast and a secure web browsing experience....
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