Yes — expedia.com has IPv6.

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

B
IPv6 readiness
Works over IPv6, with one gap: its mail servers lack IPv6.
Website over IPv6
expedia.com has 2 IPv6 addresses and answers on every one we tested.
✓ 2600:1408:c400:c::17cd:689a answers · 443✓ 2600:1408:c400:c::17cd:6895 answers · 443
yes
www over IPv6
www.expedia.com has 4 IPv6 addresses and answers on every one we tested (1 more not tested).
✓ 2600:1408:c400:c::17cd:688c answers · 443✓ 2600:1408:c400:c::17cd:6891 answers · 443✓ 2600:1408:c400:c::17cd:688d answers · 443✓ 2600:1408:c400:c::17cd:688f answers · 443– 2600:1408:c400:c::17cd:6890 not tested
yes
Mail servers (MX) have IPv6
None of the mail servers has an AAAA record.
mxa.expediagroup.com ✗mxb.expediagroup.com ✗
no
Nameservers have IPv6
10 of 10 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.
dns1.p09.nsone.net ✓dns2.p09.nsone.net ✓dns3.p09.nsone.net ✓dns4.p09.nsone.net ✓pdns1.ultradns.net ✓pdns3.ultradns.org ✓pdns2.ultradns.net ✓pdns6.ultradns.co.uk ✓pdns4.ultradns.org ✓pdns5.ultradns.info ✓
yes
HTTPS over IPv6 · not part of the grade yet
Loads over IPv6 with a valid certificate after 1 redirect: HTTP 429.
https://expedia.com/ via 2600:1408:c400:c::17cd:689a → 301https://www.expedia.com/ via 2600:1408:c400:c::17cd:688c → 429
works
 Load expedia.com over IPv6 from up to six other places — a second opinion.

What's keeping expedia.com from an A

  1. Mail servers without IPv6
    mxa.expediagroup.com, mxb.expediagroup.com 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

expedia.com  Has IPv6

A (IPv4)23.212.250.7
23.212.250.18
AAAA (IPv6)2600:1408:c400:c::17cd:689a
2600:1408:c400:c::17cd:6895

www.expedia.com  Has IPv6

Alias ofwwwexpediacom.dv.edgekey.net → e175445.dscx.akamaiedge.net
A (IPv4)23.12.147.45
23.12.147.46
23.12.147.4
23.12.147.31
AAAA (IPv6)2600:1408:c400:c::17cd:688c
2600:1408:c400:c::17cd:6891
2600:1408:c400:c::17cd:688d
2600:1408:c400:c::17cd:688f
2600:1408:c400:c::17cd:6890

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/Dd6OHByi6b · How we measure

Checked 2026-11-01 13:02:03 UTC. Full DNS report: dns.pizza/domain/expedia.com · JSON: /api/v1/expedia.com