Yes — zthvacservices.com has IPv6.

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

Measured 2026-11-04 20:29 UTC. We reuse a result for up to a week, so we aren't testing the same site over and over. Check zthvacservices.com now

B
IPv6 readiness
Works over IPv6, with one gap: its mail servers lack IPv6.
Website over IPv6
zthvacservices.com has 4 IPv6 addresses and answers on every one we tested (4 more not tested).
✓ 2600:9000:26c1:b200:e:52a7:6b00:93a1 answers · 443✓ 2600:9000:26c1:6c00:e:52a7:6b00:93a1 answers · 443✓ 2600:9000:26c1:ea00:e:52a7:6b00:93a1 answers · 443✓ 2600:9000:26c1:8200:e:52a7:6b00:93a1 answers · 443– 2600:9000:26c1:c200:e:52a7:6b00:93a1 not tested– 2600:9000:26c1:3a00:e:52a7:6b00:93a1 not tested– 2600:9000:26c1:ce00:e:52a7:6b00:93a1 not tested– 2600:9000:26c1:9400:e:52a7:6b00:93a1 not tested
yes
www over IPv6
www.zthvacservices.com has 4 IPv6 addresses and answers on every one we tested (4 more not tested).
✓ 2600:9000:26c1:d800:e:52a7:6b00:93a1 answers · 443✓ 2600:9000:26c1:1a00:e:52a7:6b00:93a1 answers · 443✓ 2600:9000:26c1:4000:e:52a7:6b00:93a1 answers · 443✓ 2600:9000:26c1:f200:e:52a7:6b00:93a1 answers · 443– 2600:9000:26c1:8a00:e:52a7:6b00:93a1 not tested– 2600:9000:26c1:ae00:e:52a7:6b00:93a1 not tested– 2600:9000:26c1:e000:e:52a7:6b00:93a1 not tested– 2600:9000:26c1:9400:e:52a7:6b00:93a1 not tested
yes
Mail servers (MX) have IPv6
None of the mail servers has an AAAA record.
inbound-smtp.us-east-1.amazonaws.com ✗
no
Nameservers have IPv6
4 of 4 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.
ns1kpv.name.com ✓ns2kqz.name.com ✓ns3jkl.name.com ✓ns4kmw.name.com ✓
yes

First measured 2026-11-04; last confirmed 2026-11-04.

HTTPS over IPv6 · not part of the grade yet
Loads over IPv6 with a valid certificate: HTTP 200.
https://zthvacservices.com/ via 2600:9000:26c1:b200:e:52a7:6b00:93a1 → 200
works
 Which outside scripts, fonts, payments or chat zthvacservices.com loads from have no IPv6.
 Load zthvacservices.com over IPv6 from up to six other places — a second opinion.

What's keeping zthvacservices.com from an A

  1. Mail servers without IPv6
    inbound-smtp.us-east-1.amazonaws.com has no AAAA record, so mail from IPv6-only servers can't reach it directly. If a provider runs your mail, that's their setting; if you run it, add AAAA records for these hosts.

Check again

zthvacservices.com  Has IPv6

A (IPv4)3.162.103.17
3.162.103.82
3.162.103.125
3.162.103.12
AAAA (IPv6)2600:9000:26c1:b200:e:52a7:6b00:93a1
2600:9000:26c1:6c00:e:52a7:6b00:93a1
2600:9000:26c1:ea00:e:52a7:6b00:93a1
2600:9000:26c1:8200:e:52a7:6b00:93a1
2600:9000:26c1:c200:e:52a7:6b00:93a1
2600:9000:26c1:3a00:e:52a7:6b00:93a1
2600:9000:26c1:ce00:e:52a7:6b00:93a1
2600:9000:26c1:9400:e:52a7:6b00:93a1

www.zthvacservices.com  Has IPv6

Alias ofblaxel.app
A (IPv4)3.162.103.17
3.162.103.125
3.162.103.82
3.162.103.12
AAAA (IPv6)2600:9000:26c1:d800:e:52a7:6b00:93a1
2600:9000:26c1:1a00:e:52a7:6b00:93a1
2600:9000:26c1:4000:e:52a7:6b00:93a1
2600:9000:26c1:f200:e:52a7:6b00:93a1
2600:9000:26c1:8a00:e:52a7:6b00:93a1
2600:9000:26c1:ae00:e:52a7:6b00:93a1
2600:9000:26c1:e000:e:52a7:6b00:93a1
2600:9000:26c1:9400:e:52a7:6b00:93a1

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/zlIjGDFfXL · How we measure

Checked 2026-11-04 20:29:08 UTC. Full DNS report: dns.pizza/domain/zthvacservices.com · Age, certificate and blocklists: how.is/zthvacservices.com · JSON: /api/v1/zthvacservices.com