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by daqnal 1382 days ago
Can anyone explain how Cloudflare got the 1.1.1.1 domain? I know they are an influential company that controls a large portion of the internet, but I'm still confused. Is it an IP or a name that gets matched to an IP?
4 comments

It's an IP, just like 1.0.0.1 (1.1): https://blog.cloudflare.com/announcing-1111/

https://1.1/

"APNIC's research group held the IP addresses 1.1.1.1 and 1.0.0.1. While the addresses were valid, so many people had entered them into various random systems that they were continuously overwhelmed by a flood of garbage traffic. APNIC wanted to study this garbage traffic but any time they'd tried to announce the IPs, the flood would overwhelm any conventional network."

https://blog.cloudflare.com/dns-resolver-1-1-1-1/

https://labs.apnic.net/?p=1127

Interestingly, we are now 4 years into this 5 year experiment.

> Upon the expiration of the initial period, or at any time thereafter, APNIC shall consider a request by Cloudflare for a permanent allocation of these IPv4 addresses to Cloudflare. APNIC undertakes to refer any such request to the regional Address Policy Special Interest Group as a matter of a change to the current research use designation of these IPv4 addresses, and APNIC shall be bound to the outcomes of this policy group.

Looks like Cloudflare are about to make a sizable "donation" to APNIC.

So long as the ip or host name is in the TLS certificate CN or SAN, it doesn’t matter.
Its an IP address.