18.104.22.168 is a free Domain Name System (DNS) service. The public DNS service and servers are maintained and owned by Cloudflare in partnership with APNIC. The service functions as a recursive name server providing domain name resolution for any host on the Internet. The service was announced on April 1, 2018, and is claimed by Cloudflare to be "the Internet's fastest, privacy-first consumer DNS service". On November 11, 2018, Cloudflare announced a mobile version of their 22.214.171.124 service for iOS and Android.
Criticism and problems
Technology websites noted that by using 126.96.36.199 as the IP address for its service, Cloudflare exposed misconfigurations in existing setups that violated internet standards (such as RFC1918). 188.8.131.52 was not a reserved IP address, and was abused by many existing routers (mostly those sold by Cisco Systems) and companies for hosting login pages to private networks, exit pages or other purposes, rendering the proper routing of 184.108.40.206 impossible on those systems. Additionally, 220.127.116.11 is blocked on many networks and by multiple ISPs because the simplicity of the address means that it was previously often used inappropriately for testing purposes and not legitimate use. These previous uses have led to a huge influx of garbage data to Cloudflare's servers.
Cleanup of 18.104.22.168 and 22.214.171.124
The 126.96.36.199/8 IP block was assigned in 2010 to APNIC; before this time it was unassigned space. An unassigned IP space, however is not the same as a reserved IP space for private use (called a reserved IP address). For example, AT&T has said it is working on fixing this issue within its CPE hardware.
- DNS over HTTPS
- DNS over TLS
- Open Root Server Network
- Public recursive name servers
- APNIC Labs enters into a research agreement with Cloudflare, Geoff Huston, APNIC Blog, 2 Apr 2018
- Cloudflare launches 188.8.131.52 DNS service that will speed up your internet The Verge, 1 April 2018
- Announcing 184.108.40.206: the fastest, privacy-first consumer DNS service, Official Cloudflare Blog
- Cimpanu, Catalin. "Cloudflare launches Android and iOS apps for its 220.127.116.11 service | ZDNet". ZDNet.
- Setting Up 18.104.22.168 Speed
- Introducing DNS Resolver, 22.214.171.124 (not a joke) DNS resolver, 126.96.36.199, is served by Cloudflare’s Global Anycast Network.
- "Introducing DNS Resolver for Tor". Cloudflare. 5 June 2018. Retrieved 1 October 2018.
- Cherry, Denny (2018-04-05). "5 reasons Cloudflare's roll-out of 188.8.131.52 has been a disaster". Tech Target. Retrieved 2018-04-26.
- "184.108.40.206: Cloudflare's new DNS attracting 'gigabits per second' of rubbish". ZDNet. 2018-04-04. Retrieved 2018-04-26.
- "1/8 and 27/8 allocated to APNIC". NANOG. 2010-01-21. Retrieved 2018-05-03.
- List of assigned /8 IPv4 address blocks
- Fixing reachability to 220.127.116.11, GLOBALLY!, by Marty Strong, 10 Apr 2018
- Tweet by @billplein, 3 April 2018