Yes — roundtrip.golf 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
roundtrip.golf has 4 IPv6 addresses and answers on every one we tested (4 more not tested).
✓ 2a05:d014:179b:c402:1313:9c4a:6b75:5c83 answers · 443✓ 2a05:d014:179b:c400:a327:40ee:24cc:6180 answers · 443✓ 2a05:d014:179b:c402:e44a:a4d3:9f84:947f answers · 443✓ 2a05:d014:179b:c403:d753:9529:3a8:62e8 answers · 443– 2a05:d014:179b:c403:4985:358f:9d01:c9ff not tested– 2a05:d018:1d22:801:a216:a799:8c87:df21 not tested– 2600:1f1c:6db:8801:3115:3d31:b971:7117 not tested– 2406:da1e:214:c901:e6a2:cb55:f057:eb3e not tested
yes
www over IPv6
www.roundtrip.golf has 4 IPv6 addresses and answers on every one we tested (4 more not tested).
✓ 2600:1f1c:6db:8801:3115:3d31:b971:7117 answers · 443✓ 2406:da1e:214:c901:e6a2:cb55:f057:eb3e answers · 443✓ 2a05:d014:179b:c402:e44a:a4d3:9f84:947f answers · 443✓ 2a05:d014:179b:c403:d753:9529:3a8:62e8 answers · 443– 2a05:d014:179b:c402:1313:9c4a:6b75:5c83 not tested– 2a05:d014:179b:c400:a327:40ee:24cc:6180 not tested– 2a05:d014:179b:c403:4985:358f:9d01:c9ff not tested– 2a05:d018:1d22:801:a216:a799:8c87:df21 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
No nameserver has an AAAA record — an IPv6-only resolver can't reach this domain's DNS.
ns1.dns-redirect.com ✗ns2.dns-redirect.com ✗
no
HTTPS over IPv6 · not part of the grade yet
Loads over IPv6 with a valid certificate after 1 redirect: HTTP 403.
https://roundtrip.golf/ via 2a05:d014:179b:c402:1313:9c4a:6b75:5c83 → 301https://expireddomains.com/domain/roundtrip.golf?utm_source=redi via 2606:4700:20::ac43:4556 → 403
works
 Which outside scripts, fonts, payments or chat roundtrip.golf loads from have no IPv6.
 Load roundtrip.golf over IPv6 from up to six other places — a second opinion.

What's keeping roundtrip.golf from an A

  1. Nameservers without IPv6
    ns1.dns-redirect.com, ns2.dns-redirect.com 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

roundtrip.golf  Has IPv6

A (IPv4)5.78.156.59
195.201.128.179
46.62.237.138
76.223.91.20
5.161.230.87
5.161.47.86
AAAA (IPv6)2a05:d014:179b:c402:1313:9c4a:6b75:5c83
2a05:d014:179b:c400:a327:40ee:24cc:6180
2a05:d014:179b:c402:e44a:a4d3:9f84:947f
2a05:d014:179b:c403:d753:9529:3a8:62e8
2a05:d014:179b:c403:4985:358f:9d01:c9ff
2a05:d018:1d22:801:a216:a799:8c87:df21
2600:1f1c:6db:8801:3115:3d31:b971:7117
2406:da1e:214:c901:e6a2:cb55:f057:eb3e

www.roundtrip.golf  Has IPv6

A (IPv4)195.201.128.179
5.78.156.59
5.161.47.86
46.62.237.138
76.223.91.20
5.161.230.87
AAAA (IPv6)2600:1f1c:6db:8801:3115:3d31:b971:7117
2406:da1e:214:c901:e6a2:cb55:f057:eb3e
2a05:d014:179b:c402:e44a:a4d3:9f84:947f
2a05:d014:179b:c403:d753:9529:3a8:62e8
2a05:d014:179b:c402:1313:9c4a:6b75:5c83
2a05:d014:179b:c400:a327:40ee:24cc:6180
2a05:d014:179b:c403:4985:358f:9d01:c9ff
2a05:d018:1d22:801:a216:a799:8c87:df21

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/0Rhzauj08Y · How we measure

Checked 2026-11-07 17:16:39 UTC. Full DNS report: dns.pizza/domain/roundtrip.golf · Age, certificate and blocklists: how.is/roundtrip.golf · JSON: /api/v1/roundtrip.golf