Yes — ultahooooost.icu has IPv6.

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

Measured 2026-10-31 11:43 UTC. We reuse a result for up to a week, so we aren't testing the same site over and over. Check ultahooooost.icu now

IPv6 readiness

Website, mail and DNS all work over IPv6.

Website over IPv6 ultahooooost.icu has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3036::ac43:c7f3 answers · 443✓ 2606:4700:3030::6815:321f answers · 443	yes
www over IPv6 www.ultahooooost.icu has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3030::6815:321f answers · 443✓ 2606:4700:3036::ac43:c7f3 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 2026-10-31; last confirmed 2026-10-31.

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.icu/ via 2606:4700:3036::ac43:c7f3 → 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.icu.svg)](https://aaaa.bot/ultahooooost.icu)

Check again

ultahooooost.icu Has IPv6

A (IPv4)	172.67.199.243 104.21.50.31
AAAA (IPv6)	2606:4700:3036::ac43:c7f3 2606:4700:3030::6815:321f

www.ultahooooost.icu Has IPv6

A (IPv4)	172.67.199.243 104.21.50.31
AAAA (IPv6)	2606:4700:3030::6815:321f 2606:4700:3036::ac43:c7f3

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.icu
Measured 2026-10-31 11:43:57 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    172.67.199.243, 104.21.50.31
AAAA (IPv6): 2606:4700:3036::ac43:c7f3, 2606:4700:3030::6815:321f
www AAAA:    2606:4700:3030::6815:321f, 2606:4700:3036::ac43:c7f3

Readiness grade A: Website, mail and DNS all work over IPv6.
- Website over IPv6: ultahooooost.icu has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3036::ac43:c7f3: answers (TCP 443)
    2606:4700:3030::6815:321f: answers (TCP 443)
- www over IPv6: www.ultahooooost.icu has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3030::6815:321f: answers (TCP 443)
    2606:4700:3036::ac43:c7f3: 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.icu/ via 2606:4700:3036::ac43:c7f3 -> HTTP 520, certificate: valid
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/ZmWYTRTnCB

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

Checked 2026-10-31 11:43:57 UTC. Full DNS report: dns.pizza/domain/ultahooooost.icu · Age, certificate and blocklists: how.is/ultahooooost.icu · JSON: /api/v1/ultahooooost.icu