Of the 132 most popular websites we checked, 49.2% publish an IPv6 address, 49.2% actually answer on it, and 33.3% have their website, mail and DNS all on IPv6.
Based on 180 of 1,000 sites checked so far; 48 of those have no website address and are left out.
As of 2026-10-30 17:15 UTC, from each site's latest weekly check. Cohort: Tranco list PYK6J, top 1,000 (30 Sep – 29 Oct 2026) — the same sites every month. Download the current data (CSV) · How we measure
Publishing an AAAA record and actually answering on it aren't the same thing — a site can advertise IPv6 and then time out. And a website on IPv6 can still have mail servers and nameservers that aren't. Most IPv6 statistics count only the first.