The IPv6 Mirage: Users Crossed 50%, But Only 1 in 5 Domains Answers — and Cloudflare Generates Half of That
On 28 March 2026 IPv6 crossed half of Google's traffic — the eyeball Internet reached the majority. We pointed an AAAA-typed crawl at 315 million registry domains to measure the other half of the question, and the content Internet looks nothing like it: only 20.4% of domains publish any IPv6 address, Cloudflare alone generates 44.7% of it, and 45% of all domain IPv6 is a CDN edge in front of an origin that may still be IPv4-only. Strip the CDNs and origin-native IPv6 falls to 11%. This is server-side IPv6, measured from 1.88 billion DNS answers.