The blog is under scheduled maintenance until Friday, 30 August 2024. For any issues, email [email protected].
2024-02-29
Cloudflare recently fixed two critical DNSSEC vulnerabilities: CVE-2023-50387 and CVE-2023-50868. Both of these vulnerabilities can exhaust computational resources of validating DNS resolvers. These vulnerabilities do not affect our Authoritative DNS or DNS firewall products...
2023-02-28
Introducing a new DNS platform that powers 1.1.1.1 and various other products....
2022-05-25
Now we’re happy to announce we will return more error code types and include additional helpful information to further improve your debugging experience....
2022-03-08
The majority of DNS queries on the Internet today are unencrypted. This post describes a new protocol, called Discovery of Designated Resolvers (DDR), that allows clients to upgrade from unencrypted DNS to encrypted DNS when only the IP address of a resolver is known. ...
2020-10-30
We recently released a new version of Cloudflare Resolver, which adds a piece of information called “Extended DNS Errors” (EDE) along with the response code under certain circumstances. This will be helpful in tracing DNS resolution errors and figure out what went wrong behind the scenes....
