Yes — youtu.be has IPv6.

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

A
IPv6 readiness
Website, mail and DNS all work over IPv6.
Website over IPv6
youtu.be has 4 IPv6 addresses and answers on every one we tested.
✓ 2607:f8b0:4004:c23::5b answers · 443✓ 2607:f8b0:4004:c23::be answers · 443✓ 2607:f8b0:4004:c23::88 answers · 443✓ 2607:f8b0:4004:c23::5d answers · 443
yes
Mail servers (MX) have IPv6
Every mail server has an AAAA record.
gmr-smtp-in.l.google.com ✓smtp.google.com ✓
yes
Nameservers have IPv6
4 of 4 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.
ns2.google.com ✓ns3.google.com ✓ns4.google.com ✓ns1.google.com ✓
yes
HTTPS over IPv6 · not part of the grade yet
Loads over IPv6 with a valid certificate after 1 redirect: HTTP 200.
https://youtu.be/ via 2607:f8b0:4004:c23::5b → 303https://www.youtube.com/?feature=youtu.be via 2001:4860:4826:400:: → 200
works
 Load youtu.be 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/youtu.be.svg)](https://aaaa.bot/youtu.be)

Check again

youtu.be  Has IPv6

A (IPv4)142.251.111.91
142.251.111.93
142.251.111.190
142.251.111.136
AAAA (IPv6)2607:f8b0:4004:c23::5b
2607:f8b0:4004:c23::be
2607:f8b0:4004:c23::88
2607:f8b0:4004:c23::5d

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

Copy the evidence — a citation-ready record of this measurement

 Permanent link: aaaa.bot/r/eGKAycPxRa · How we measure

Checked 2026-10-31 00:06:34 UTC. Full DNS report: dns.pizza/domain/youtu.be · JSON: /api/v1/youtu.be