Yes — dev.british-history.ac.uk has IPv6.

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

B
IPv6 readiness
Works over IPv6, with one gap: its nameservers lack IPv6.
Website over IPv6
dev.british-history.ac.uk has an AAAA record and answers on it.
✓ 2603:1061:14:48::1 answers · 443
yes
Mail servers (MX) have IPv6
No MX records, so mail goes to the domain's own address (implicit MX). It has an AAAA record.		yes
Nameservers have IPv6
No nameserver has an AAAA record — an IPv6-only resolver can't reach this domain's DNS.
ns0.ulcc.ac.uk ✗ns1.ulcc.ac.uk ✗
no
HTTPS over IPv6 · not part of the grade yet
Loads over IPv6 with a valid certificate: HTTP 403.
https://dev.british-history.ac.uk/ via 2603:1061:14:48::1 → 403
works
 Which outside scripts, fonts, payments or chat dev.british-history.ac.uk loads from have no IPv6.
 Load dev.british-history.ac.uk over IPv6 from up to six other places — a second opinion.

What's keeping dev.british-history.ac.uk from an A

  1. Nameservers without IPv6
    ns0.ulcc.ac.uk, ns1.ulcc.ac.uk all have no AAAA record, so a resolver that only speaks IPv6 can't look your domain up. Most DNS providers offer IPv6 nameservers; ask yours, or move DNS to one that does.

Check again

dev.british-history.ac.uk  Has IPv6

Alias ofbho-prod-akg8dgazbmdganh7.z01.azurefd.net → mr-z01.tm-azurefd.net
A (IPv4)150.171.109.73
AAAA (IPv6)2603:1061:14:48::1

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/alrDQA3trb · How we measure

Checked 2026-11-15 18:32:21 UTC. Full DNS report: dns.pizza/domain/dev.british-history.ac.uk · Age, certificate and blocklists: how.is/dev.british-history.ac.uk · JSON: /api/v1/dev.british-history.ac.uk