Yes — j-ff.lol has IPv6.

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

A
IPv6 readiness
Website, mail and DNS all work over IPv6.
Website over IPv6
j-ff.lol has an AAAA record and answers on it.
✓ 2605:52c0:2:1c6f:4497:f3ff:fe35:3d90 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
3 of 3 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.
ns1.dnsowl.com ✓ns2.dnsowl.com ✓ns3.dnsowl.com ✓
yes
HTTPS over IPv6 · not part of the grade yet
The certificate served over IPv6 at 2605:52c0:2:1c6f:4497:f3ff:fe35:3d90 isn't valid for j-ff.lol: ERR_TLS_CERT_ALTNAME_INVALID.
https://j-ff.lol/ via 2605:52c0:2:1c6f:4497:f3ff:fe35:3d90 · ERR_TLS_CERT_ALTNAME_INVALID
problem
 Which outside scripts, fonts, payments or chat j-ff.lol loads from have no IPv6.
 Load j-ff.lol over IPv6 from up to six other places — a second opinion.

Nothing keeping you from an A

  1. The certificate served over IPv6 is wrong
    The certificate served over IPv6 at 2605:52c0:2:1c6f:4497:f3ff:fe35:3d90 isn't valid for j-ff.lol: ERR_TLS_CERT_ALTNAME_INVALID. Often the IPv6 address points at a different server (or an old one) than IPv4 does. Make sure 2605:52c0:2:1c6f:4497:f3ff:fe35:3d90 serves the same certificate as your IPv4 address.

Check again

j-ff.lol  Has IPv6

A (IPv4)154.21.90.51
AAAA (IPv6)2605:52c0:2:1c6f:4497:f3ff:fe35:3d90

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/dVvinxjMB2 · How we measure

Checked 2026-11-10 17:05:41 UTC. Full DNS report: dns.pizza/domain/j-ff.lol · Age, certificate and blocklists: how.is/j-ff.lol · JSON: /api/v1/j-ff.lol