The Best of Cloudflare
10+ most popular Cloudflare articles, as voted by our community.
At Cloudflare, we have our eyes set on an ambitious goal — to help build a better Internet.
Cloudflare on Golang
Using Go as a scripting language in Linux
At Cloudflare we like Go. We use it in many in-house software projects as well as parts of bigger pipeline systems. But can we take Go to the next level and use it as a scripting language for our…
Cloudflare on Justice
Terminating Service for 8Chan
The mass shootings in El Paso, Texas and Dayton, Ohio are horrific tragedies. In the case of the El Paso shooting, the suspected terrorist gunman appears to have been inspired by the forum website…
Cloudflare on Privacy
Announcing 18.104.22.168: the fastest, privacy-first consumer DNS service
Cloudflare's mission is to help build a better Internet. We're excited today to take another step toward that mission with the launch of 22.214.171.124 — the Internet's fastest, privacy-first consumer DNS…
Cloudflare on Software Engineering
Keeping the Cloudflare API 'all green' using Python-based testing
Scout is an automated system providing constant end to end testing and monitoring of live APIs over different environments and resources. Scout does it by periodically running self explanatory Python…
Cloudflare on Technology
Understanding How Facebook Disappeared from the Internet
Today at 1651 UTC, we opened an internal incident entitled "Facebook DNS lookup returning SERVFAIL" because we were worried that something was wrong with our DNS resolver 126.96.36.199. But as we were about to post on our public status page we realized something else more serious was going on.
«So now, because Facebook and their sites are so big, we have DNS resolvers worldwide handling 30x more queries than usual and potentially causing latency and timeout issues to other platforms.»
Cloudflare on Tiktok
In 2021, the Internet went for TikTok, space and beyond
Join us in our Year in Review 2021 focused on the most popular domains-websites.
These are some all-time favorites with Refind users.
Private Access Tokens: eliminating CAPTCHAs on iPhones and Macs with open standards
Today we’re announcing Private Access Tokens, a completely invisible, private way to validate that real users are visiting your site
A Primer on Proxies
A technical dive into traditional TCP proxying over HTTP
Good-bye ESNI, hello ECH!
A deep dive into the Encrypted Client Hello, a standard that encrypts privacy-sensitive parameters sent by the client, as part of the TLS handshake.
The tale of a single register value
It’s not every day that you get to debug what may well be a packet of death. It was certainly the first time for me. What do I mean by “a packet of death”? A software bug where the network stack crashes in reaction to a single received network packet, taking down the whole operating system with it.
Branch predictor: How many "if"s are too many? Including x86 and M1 benchmarks!
Is it ok to have if clauses that will basically never be run? Surely, there must be some performance cost to that...
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