Yes — changingcourses11.bio has IPv6.

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

This is a saved measurement from 2026-11-09 03:19 UTC. Check changingcourses11.bio live now

B
IPv6 readiness
Works over IPv6, with one gap: its nameservers lack IPv6.
Website over IPv6
changingcourses11.bio has 4 IPv6 addresses and answers on every one we tested (4 more not tested).
✓ 2600:1f1c:6db:8801:159e:8b74:35bf:5fd5 answers · 443✓ 2406:da1e:214:c901:c60a:256b:638a:4cbe answers · 443✓ 2a05:d014:179b:c402:3302:43a2:bbe5:97df answers · 443✓ 2a05:d014:179b:c402:c95b:aed8:1599:61b7 answers · 443– 2a05:d018:1d22:801:dd18:12cc:6703:534e not tested– 2a05:d014:179b:c402:3063:f9b1:8ae1:7e0 not tested– 2a05:d014:179b:c403:be07:2458:2ba6:b1f9 not tested– 2a05:d014:179b:c403:7bbe:7c66:5010:3a9f not tested
yes
www over IPv6
www.changingcourses11.bio has 4 IPv6 addresses and answers on every one we tested (4 more not tested).
✓ 2600:1f1c:6db:8801:159e:8b74:35bf:5fd5 answers · 443✓ 2406:da1e:214:c901:c60a:256b:638a:4cbe answers · 443✓ 2a05:d014:179b:c402:3302:43a2:bbe5:97df answers · 443✓ 2a05:d014:179b:c402:c95b:aed8:1599:61b7 answers · 443– 2a05:d018:1d22:801:dd18:12cc:6703:534e not tested– 2a05:d014:179b:c402:3063:f9b1:8ae1:7e0 not tested– 2a05:d014:179b:c403:be07:2458:2ba6:b1f9 not tested– 2a05:d014:179b:c403:7bbe:7c66:5010:3a9f 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://changingcourses11.bio/ via 2600:1f1c:6db:8801:159e:8b74:35bf:5fd5 → 301https://expireddomains.com/domain/changingcourses11.bio?utm_source=redi via 2606:4700:20::681a:f7a → 403
works

What's keeping changingcourses11.bio 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

changingcourses11.bio  Has IPv6

A (IPv4)5.161.230.87
5.161.47.86
46.62.237.138
5.78.156.59
195.201.128.179
76.223.91.20
AAAA (IPv6)2600:1f1c:6db:8801:159e:8b74:35bf:5fd5
2406:da1e:214:c901:c60a:256b:638a:4cbe
2a05:d014:179b:c402:3302:43a2:bbe5:97df
2a05:d014:179b:c402:c95b:aed8:1599:61b7
2a05:d018:1d22:801:dd18:12cc:6703:534e
2a05:d014:179b:c402:3063:f9b1:8ae1:7e0
2a05:d014:179b:c403:be07:2458:2ba6:b1f9
2a05:d014:179b:c403:7bbe:7c66:5010:3a9f

www.changingcourses11.bio  Has IPv6

A (IPv4)5.161.230.87
46.62.237.138
5.161.47.86
5.78.156.59
76.223.91.20
195.201.128.179
AAAA (IPv6)2600:1f1c:6db:8801:159e:8b74:35bf:5fd5
2406:da1e:214:c901:c60a:256b:638a:4cbe
2a05:d014:179b:c402:3302:43a2:bbe5:97df
2a05:d014:179b:c402:c95b:aed8:1599:61b7
2a05:d018:1d22:801:dd18:12cc:6703:534e
2a05:d014:179b:c402:3063:f9b1:8ae1:7e0
2a05:d014:179b:c403:be07:2458:2ba6:b1f9
2a05:d014:179b:c403:7bbe:7c66:5010:3a9f

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/pLEXMzLcfl · How we measure

Checked 2026-11-09 03:19:38 UTC. Full DNS report: dns.pizza/domain/changingcourses11.bio · Age, certificate and blocklists: how.is/changingcourses11.bio · JSON: /api/v1/changingcourses11.bio