Yes — 16bits.studio has IPv6.

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

IPv6 readiness

Website, mail and DNS all work over IPv6.

Website over IPv6 16bits.studio has 2 IPv6 addresses and answers on every one we tested. ✓ 2a02:4780:84:7a47:aa4b:9863:fa4d:b56a answers · 443✓ 2a02:4780:84:c8cc:56e7:1c9c:6f0f:9b4e answers · 443	yes
www over IPv6 www.16bits.studio has 2 IPv6 addresses and answers on every one we tested. ✓ 2a02:4780:1e:72fb:1125:9e24:a37f:3bc4 answers · 443✓ 2a02:4780:21:8bdd:c040:a830:2643:d49f 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. nebula.dns-parking.com ✓aurora.dns-parking.com ✓	yes

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

https://16bits.studio/ via 2a02:4780:84:7a47:aa4b:9863:fa4d:b56a → 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/16bits.studio.svg)](https://aaaa.bot/16bits.studio)

Check again

16bits.studio Has IPv6

A (IPv4)	88.222.222.133 2.57.91.36
AAAA (IPv6)	2a02:4780:84:7a47:aa4b:9863:fa4d:b56a 2a02:4780:84:c8cc:56e7:1c9c:6f0f:9b4e

www.16bits.studio Has IPv6

Alias of	www.16bits.studio.cdn.hstgr.net
A (IPv4)	191.101.104.60 212.1.212.171
AAAA (IPv6)	2a02:4780:1e:72fb:1125:9e24:a37f:3bc4 2a02:4780:21:8bdd:c040:a830:2643:d49f

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: 16bits.studio
Measured 2026-11-03 22:13:49 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    88.222.222.133, 2.57.91.36
AAAA (IPv6): 2a02:4780:84:7a47:aa4b:9863:fa4d:b56a, 2a02:4780:84:c8cc:56e7:1c9c:6f0f:9b4e
www AAAA:    2a02:4780:1e:72fb:1125:9e24:a37f:3bc4, 2a02:4780:21:8bdd:c040:a830:2643:d49f

Readiness grade A: Website, mail and DNS all work over IPv6.
- Website over IPv6: 16bits.studio has 2 IPv6 addresses and answers on every one we tested.
    2a02:4780:84:7a47:aa4b:9863:fa4d:b56a: answers (TCP 443)
    2a02:4780:84:c8cc:56e7:1c9c:6f0f:9b4e: answers (TCP 443)
- www over IPv6: www.16bits.studio has 2 IPv6 addresses and answers on every one we tested.
    2a02:4780:1e:72fb:1125:9e24:a37f:3bc4: answers (TCP 443)
    2a02:4780:21:8bdd:c040:a830:2643:d49f: 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): Loads over IPv6 with a valid certificate: HTTP 200.
    https://16bits.studio/ via 2a02:4780:84:7a47:aa4b:9863:fa4d:b56a -> HTTP 200, certificate: valid
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/0ekZDE2wZZ

Permanent link: aaaa.bot/r/0ekZDE2wZZ · How we measure

Checked 2026-11-03 22:13:49 UTC. Full DNS report: dns.pizza/domain/16bits.studio · Age, certificate and blocklists: how.is/16bits.studio · JSON: /api/v1/16bits.studio