Less Is More - Why The IPv6 Switch Is Missing

Cloudflare has announced that it will be enabling IPv6 by default for all its free domains starting from May 25th, 2017. The company aims to move away from the legacy world of IPv4-only and embrace the modern era where both IPv4 and IPv6 are treated equally. Cloudflare has been a gateway for visitors on IPv6 connections to access sites and applications hosted on legacy IPv4-only infrastructure, and with this change, it is making IPv6 always on, with no off-switch. The company is also working alongside OpenDNS to make IPv6 even faster and more globally deployed by prototyping a new idea - returning all available addresses in one DNS query. This will reduce the number of necessary round trips in half and pre-populate global DNS caches with IPv6 addresses, making IPv6 lookups faster in the future.