Yes — nexuscyberdefense.org has IPv6.

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

?
IPv6 readiness
Publishes IPv6, but we couldn't test whether it answers right now.
Website over IPv6
nexuscyberdefense.org has an AAAA record, but we couldn't test whether it answers right now.		record only
www over IPv6
www.nexuscyberdefense.org has an AAAA record, but we couldn't test whether it answers right now.		record only
Mail servers (MX) have IPv6
None of the mail servers has an AAAA record.
mx00.ionos.es ✗mx01.ionos.es ✗
no
Nameservers have IPv6
2 of 2 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.
clara.ns.cloudflare.com ✓sage.ns.cloudflare.com ✓
yes

We couldn't test whether the addresses answer right now, so this grade is based on DNS alone.

 Which outside scripts, fonts, payments or chat nexuscyberdefense.org loads from have no IPv6.
 Load nexuscyberdefense.org over IPv6 from up to six other places — a second opinion.

What's keeping nexuscyberdefense.org from an A

  1. Mail servers without IPv6
    mx00.ionos.es, mx01.ionos.es have no AAAA record, so mail from IPv6-only servers can't reach them directly. If a provider runs your mail, that's their setting; if you run it, add AAAA records for these hosts.

Check again

nexuscyberdefense.org  Has IPv6

A (IPv4)104.21.59.207
172.67.183.169
AAAA (IPv6)2606:4700:3037::ac43:b7a9
2606:4700:3033::6815:3bcf

www.nexuscyberdefense.org  Has IPv6

A (IPv4)172.67.183.169
104.21.59.207
AAAA (IPv6)2606:4700:3037::ac43:b7a9
2606:4700:3033::6815:3bcf

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/KoZshMbNT9 · How we measure

Checked 2026-11-06 09:48:48 UTC. Full DNS report: dns.pizza/domain/nexuscyberdefense.org · Age, certificate and blocklists: how.is/nexuscyberdefense.org · JSON: /api/v1/nexuscyberdefense.org