Yes — iamprincipal.com has IPv6.

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

IPv6 readiness

Website, mail and DNS all work over IPv6.

Website over IPv6 iamprincipal.com has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3035::6815:4418 answers · 443✓ 2606:4700:3032::ac43:b976 answers · 443	yes
www over IPv6 www.iamprincipal.com has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3032::ac43:b976 answers · 443✓ 2606:4700:3035::6815:4418 answers · 443	yes
Mail servers (MX) have IPv6 Every mail server has an AAAA record. spool.mail.gandi.net ✓fb.mail.gandi.net ✓	yes
Nameservers have IPv6 2 of 2 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up. aron.ns.cloudflare.com ✓rayden.ns.cloudflare.com ✓	yes

HTTPS over IPv6 · not part of the grade yet
Loads over IPv6 with a valid certificate after 1 redirect: HTTP 200.

https://iamprincipal.com/ via 2606:4700:3035::6815:4418 → 301https://iamprincipal.io/ via 2606:4700:3033::ac43:c60e → 200

works

Nothing keeping you from an A

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

Check again

iamprincipal.com Has IPv6

A (IPv4)	172.67.185.118 104.21.68.24
AAAA (IPv6)	2606:4700:3035::6815:4418 2606:4700:3032::ac43:b976

www.iamprincipal.com Has IPv6

A (IPv4)	172.67.185.118 104.21.68.24
AAAA (IPv6)	2606:4700:3032::ac43:b976 2606:4700:3035::6815:4418

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

IPv6 measurement: iamprincipal.com
Measured 2026-11-05 07:09:43 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    172.67.185.118, 104.21.68.24
AAAA (IPv6): 2606:4700:3035::6815:4418, 2606:4700:3032::ac43:b976
www AAAA:    2606:4700:3032::ac43:b976, 2606:4700:3035::6815:4418

Readiness grade A: Website, mail and DNS all work over IPv6.
- Website over IPv6: iamprincipal.com has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3035::6815:4418: answers (TCP 443)
    2606:4700:3032::ac43:b976: answers (TCP 443)
- www over IPv6: www.iamprincipal.com has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3032::ac43:b976: answers (TCP 443)
    2606:4700:3035::6815:4418: answers (TCP 443)
- Mail servers (MX) have IPv6: Every mail server has an AAAA record.
- Nameservers have IPv6: 2 of 2 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.

Reachability = a TCP connection opened on port 443 (or 80).

HTTPS over IPv6 (not graded): Loads over IPv6 with a valid certificate after 1 redirect: HTTP 200.
    https://iamprincipal.com/ via 2606:4700:3035::6815:4418 -> HTTP 301, certificate: valid
    https://iamprincipal.io/ via 2606:4700:3033::ac43:c60e -> HTTP 200, certificate: valid
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/tWTKRSIMru

Permanent link: aaaa.bot/r/tWTKRSIMru · How we measure

Checked 2026-11-05 07:09:43 UTC. Full DNS report: dns.pizza/domain/iamprincipal.com · Age, certificate and blocklists: how.is/iamprincipal.com · JSON: /api/v1/iamprincipal.com