Yes — facebook.com has IPv6.

Has both IPv4 (A) and IPv6 (AAAA) addresses.

A
IPv6 readiness
Website, mail and DNS all work over IPv6.
Website over IPv6
facebook.com has an AAAA record and answers on it.		yes
www over IPv6
www.facebook.com has an AAAA record and answers on it.		yes
Mail servers (MX) have IPv6
Every mail server has an AAAA record.
smtpin.vvv.facebook.com ✓
yes
Nameservers have IPv6
4 of 4 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.
d.ns.facebook.com ✓a.ns.facebook.com ✓b.ns.facebook.com ✓c.ns.facebook.com ✓
yes
 Load facebook.com over IPv6 from up to six other places — a second opinion.

Nothing keeping you from an A

  1. Nothing to fix
    Show it off: add the badge to your README.
    [![IPv6](https://aaaa.bot/badge/facebook.com.svg)](https://aaaa.bot/facebook.com)

Check again

facebook.com  Has IPv6

A (IPv4)57.145.2.1
AAAA (IPv6)2a03:2880:f31d:1:face:b00c:0:25de

www.facebook.com  Has IPv6

Alias ofstar-mini.c10r.facebook.com
A (IPv4)57.144.74.1
AAAA (IPv6)2a03:2880:f381:1:face:b00c:0:25de

Browsers on dual-stack networks will usually pick IPv6 here (the "Happy Eyeballs" algorithm races both and prefers v6).

Checked 2026-10-30 14:51:58 UTC — one of the top 1,000 sites, re-checked weekly. Re-check now. Full DNS report: dns.pizza/domain/facebook.com · JSON: /api/v1/facebook.com