Yes — umich.edu has IPv6.

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

This is a saved measurement from 2026-10-31 07:04 UTC. Check umich.edu live now

B
IPv6 readiness
Works over IPv6, with one gap: its mail servers lack IPv6.
Website over IPv6
umich.edu has 2 IPv6 addresses and answers on every one we tested.
✓ 2606:4700:7::25 answers · 443✓ 2a06:98c1:58::25 answers · 443
yes
www over IPv6
www.umich.edu has 2 IPv6 addresses and answers on every one we tested.
✓ 2606:4700:7::25 answers · 443✓ 2a06:98c1:58::25 answers · 443
yes
Mail servers (MX) have IPv6
None of the mail servers has an AAAA record.
mx1.a.mail.umich.edu ✗mx2.a.mail.umich.edu ✗
no
Nameservers have IPv6
2 of 4 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.
dns1.itd.umich.edu ✓dns2.itd.umich.edu ✓dns3.umich.org ✗dns4.umich.org ✗
yes
HTTPS over IPv6 · not part of the grade yet
Loads over IPv6 with a valid certificate: HTTP 403.
https://umich.edu/ via 2606:4700:7::25 → 403
works

What's keeping umich.edu from an A

  1. Mail servers without IPv6
    mx1.a.mail.umich.edu, mx2.a.mail.umich.edu have no AAAA record, so mail from IPv6-only servers can't reach them directly. If a provider runs your mail, that's their setting; if you run it, add AAAA records for these hosts.

Check again

umich.edu  Has IPv6

A (IPv4)172.66.0.37
162.159.140.37
AAAA (IPv6)2606:4700:7::25
2a06:98c1:58::25

www.umich.edu  Has IPv6

A (IPv4)172.66.0.37
162.159.140.37
AAAA (IPv6)2606:4700:7::25
2a06:98c1:58::25

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/fO8YPxqmX0 · How we measure

Checked 2026-10-31 07:04:32 UTC. Full DNS report: dns.pizza/domain/umich.edu · JSON: /api/v1/umich.edu