Yes — ultahooooost.skin has IPv6.

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

Measured 2026-11-03 16:15 UTC. We reuse a result for up to a week, so we aren't testing the same site over and over. Check ultahooooost.skin now

IPv6 readiness

Website, mail and DNS all work over IPv6.

Website over IPv6 ultahooooost.skin has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3034::ac43:d09a answers · 443✓ 2606:4700:3033::6815:42e2 answers · 443	yes
www over IPv6 www.ultahooooost.skin has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3033::6815:42e2 answers · 443✓ 2606:4700:3034::ac43:d09a answers · 443	yes
Mail servers (MX) have IPv6 No MX records, so mail goes to the domain's own address (implicit MX). It has an AAAA record.	yes
Nameservers have IPv6 2 of 2 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up. olof.ns.cloudflare.com ✓piper.ns.cloudflare.com ✓	yes

First measured 2026-11-03; last confirmed 2026-11-03.

HTTPS over IPv6 · not part of the grade yet
Answered over IPv6 with a server error (HTTP 520) — can't tell whether that's specific to IPv6.

https://ultahooooost.skin/ via 2606:4700:3034::ac43:d09a → 520

Nothing keeping you from an A

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

Check again

ultahooooost.skin Has IPv6

A (IPv4)	104.21.66.226 172.67.208.154
AAAA (IPv6)	2606:4700:3034::ac43:d09a 2606:4700:3033::6815:42e2

www.ultahooooost.skin Has IPv6

A (IPv4)	172.67.208.154 104.21.66.226
AAAA (IPv6)	2606:4700:3033::6815:42e2 2606:4700:3034::ac43:d09a

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: ultahooooost.skin
Measured 2026-11-03 16:15:27 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    104.21.66.226, 172.67.208.154
AAAA (IPv6): 2606:4700:3034::ac43:d09a, 2606:4700:3033::6815:42e2
www AAAA:    2606:4700:3033::6815:42e2, 2606:4700:3034::ac43:d09a

Readiness grade A: Website, mail and DNS all work over IPv6.
- Website over IPv6: ultahooooost.skin has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3034::ac43:d09a: answers (TCP 443)
    2606:4700:3033::6815:42e2: answers (TCP 443)
- www over IPv6: www.ultahooooost.skin has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3033::6815:42e2: answers (TCP 443)
    2606:4700:3034::ac43:d09a: answers (TCP 443)
- Mail servers (MX) have IPv6: No MX records, so mail goes to the domain's own address (implicit MX). It 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): Answered over IPv6 with a server error (HTTP 520) — can't tell whether that's specific to IPv6.
    https://ultahooooost.skin/ via 2606:4700:3034::ac43:d09a -> HTTP 520, certificate: valid
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/rAQYv6EWlZ

Permanent link: aaaa.bot/r/rAQYv6EWlZ · How we measure

Checked 2026-11-03 16:15:27 UTC. Full DNS report: dns.pizza/domain/ultahooooost.skin · Age, certificate and blocklists: how.is/ultahooooost.skin · JSON: /api/v1/ultahooooost.skin