Yes — uk.trip.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
uk.trip.com has 4 IPv6 addresses and answers on every one we tested (1 more not tested).
✓ 2600:1408:c400:c::17cd:688e answers · 443✓ 2600:1408:c400:c::17cd:6890 answers · 443✓ 2600:1408:c400:c::17cd:6891 answers · 443✓ 2600:1408:c400:c::17cd:688d answers · 443– 2600:1408:c400:c::17cd:6894 not tested
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
6 of 6 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.
a1-244.akam.net ✓a26-64.akam.net ✓a16-67.akam.net ✓a11-65.akam.net ✓a9-65.akam.net ✓a14-66.akam.net ✓
yes
HTTPS over IPv6 · not part of the grade yet
Loads over IPv6 with a valid certificate: HTTP 200.
https://uk.trip.com/ via 2600:1408:c400:c::17cd:688e → 200
works
 Load uk.trip.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/uk.trip.com.svg)](https://aaaa.bot/uk.trip.com)

Check again

uk.trip.com  Has IPv6

Alias oftrip-ak.t1.geo.ctripgslb.net → trip-ak.t1.os.acc.ctripgslb.net → c229846.edgekey.net → e229846.dscx.akamaiedge.net
A (IPv4)23.212.250.20
23.212.250.18
23.212.250.23
23.212.250.26
23.212.250.14
23.212.250.8
AAAA (IPv6)2600:1408:c400:c::17cd:688e
2600:1408:c400:c::17cd:6890
2600:1408:c400:c::17cd:6891
2600:1408:c400:c::17cd:688d
2600:1408:c400:c::17cd:6894

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/AgMBQJ7w8Q · How we measure

Checked 2026-11-01 22:57:33 UTC. Full DNS report: dns.pizza/domain/uk.trip.com · JSON: /api/v1/uk.trip.com