Yes — zfca.tech has IPv6.

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

A
IPv6 readiness
Website, mail and DNS all work over IPv6.
Website over IPv6
zfca.tech has an AAAA record and answers on it.
✓ 2a02:4780:c6:3c74::1 answers · 443
yes
www over IPv6
www.zfca.tech has an AAAA record and answers on it.
✓ 2a02:4780:c6:3c74::1 answers · 443
yes
Mail servers (MX) have IPv6
Every mail server has an AAAA record.
mx1.hostinger.com ✓mx2.hostinger.com ✓
yes
Nameservers have IPv6
2 of 2 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.
lunar.dns-parking.com ✓solar.dns-parking.com ✓
yes
HTTPS over IPv6 · not part of the grade yet
The certificate served over IPv6 at 2a02:4780:c6:3c74::1 isn't valid for zfca.tech: ERR_TLS_CERT_ALTNAME_INVALID.
https://zfca.tech/ via 2a02:4780:c6:3c74::1 · ERR_TLS_CERT_ALTNAME_INVALID
problem
 Which outside scripts, fonts, payments or chat zfca.tech loads from have no IPv6.
 Load zfca.tech 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 2a02:4780:c6:3c74::1 isn't valid for zfca.tech: ERR_TLS_CERT_ALTNAME_INVALID. Often the IPv6 address points at a different server (or an old one) than IPv4 does. Make sure 2a02:4780:c6:3c74::1 serves the same certificate as your IPv4 address.

Check again

zfca.tech  Has IPv6

A (IPv4)187.53.103.52
AAAA (IPv6)2a02:4780:c6:3c74::1

www.zfca.tech  Has IPv6

Alias ofzfca.tech
A (IPv4)187.53.103.52
AAAA (IPv6)2a02:4780:c6:3c74::1

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/GiKftKAyDW · How we measure

Checked 2026-11-12 15:53:50 UTC. Full DNS report: dns.pizza/domain/zfca.tech · Age, certificate and blocklists: how.is/zfca.tech · JSON: /api/v1/zfca.tech