Yes — uscapital.biz has IPv6.

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

A
IPv6 readiness
Website, mail and DNS all work over IPv6.
Website over IPv6
uscapital.biz has an AAAA record and answers on it.
✓ 2600:4c00:400:d::270 answers · 443
yes
www over IPv6
www.uscapital.biz has an AAAA record and answers on it.
✓ 2600:4c00:400:d::270 answers · 443
yes
Mail servers (MX) have IPv6
Every mail server has an AAAA record.
uscapital.biz ✓
yes
Nameservers have IPv6
4 of 4 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.
cp1.privatesystems.net ✓cp4.privatesystems.net ✓cp3.privatesystems.net ✓cp2.privatesystems.net ✓
yes
HTTPS over IPv6 · not part of the grade yet
Loads over IPv6 with a valid certificate: HTTP 200.
https://uscapital.biz/ via 2600:4c00:400:d::270 → 200
works
 Which outside scripts, fonts, payments or chat uscapital.biz loads from have no IPv6.
 Load uscapital.biz over IPv6 from up to six other places — a second opinion.

Nothing keeping you from an A

  1. Nothing to fix
    Show it off: add the badge to your README.
    [![IPv6](https://aaaa.bot/badge/uscapital.biz.svg)](https://aaaa.bot/uscapital.biz)

Check again

uscapital.biz  Has IPv6

A (IPv4)67.222.31.196
AAAA (IPv6)2600:4c00:400:d::270

www.uscapital.biz  Has IPv6

Alias ofuscapital.biz
A (IPv4)67.222.31.196
AAAA (IPv6)2600:4c00:400:d::270

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/ON2xWC9vN_ · How we measure

Checked 2026-11-12 06:39:54 UTC. Full DNS report: dns.pizza/domain/uscapital.biz · Age, certificate and blocklists: how.is/uscapital.biz · JSON: /api/v1/uscapital.biz