Yes — sergiopereda.com 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
sergiopereda.com has an AAAA record and answers on it.
✓ 2a12:d280:100:77:: answers · 443
yes
www over IPv6
www.sergiopereda.com has an AAAA record and answers on it.
✓ 2a12:d280:100:77:: answers · 443
yes
Mail servers (MX) have IPv6
Every mail server has an AAAA record.
mail.sergiopereda.com ✓
yes
Nameservers have IPv6
No nameserver has an AAAA record — an IPv6-only resolver can't reach this domain's DNS.
dns3.raiolanetworks.es ✗dns2.raiolanetworks.es ✗dns1.raiolanetworks.es ✗
no
HTTPS over IPv6 · not part of the grade yet
Loads over IPv6 with a valid certificate: HTTP 200.
https://sergiopereda.com/ via 2a12:d280:100:77:: → 200
works
 Which outside scripts, fonts, payments or chat sergiopereda.com loads from have no IPv6.
 Load sergiopereda.com over IPv6 from up to six other places — a second opinion.

What's keeping sergiopereda.com from an A

  1. Nameservers without IPv6
    dns3.raiolanetworks.es, dns2.raiolanetworks.es, dns1.raiolanetworks.es 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

sergiopereda.com  Has IPv6

A (IPv4)178.211.133.77
AAAA (IPv6)2a12:d280:100:77::

www.sergiopereda.com  Has IPv6

Alias ofsergiopereda.com
A (IPv4)178.211.133.77
AAAA (IPv6)2a12:d280:100:77::

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/XoutsuC48X · How we measure

Checked 2026-11-06 08:52:12 UTC. Full DNS report: dns.pizza/domain/sergiopereda.com · Age, certificate and blocklists: how.is/sergiopereda.com · JSON: /api/v1/sergiopereda.com