Yes — nullinstance.studio has IPv6.

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

IPv6 readiness

Website, mail and DNS all work over IPv6.

Website over IPv6 nullinstance.studio has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3030::6815:3388 answers · 443✓ 2606:4700:3031::ac43:b525 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. indie.ns.cloudflare.com ✓ridge.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://nullinstance.studio/ via 2606:4700:3030::6815:3388 → 302https://raspy-violet-5917.cloudflareaccess.com/cdn-cgi/access/login/nullinstance.studio?kid=75a28b53a877d228013b58b997911748e6cf725a6e9b36fc66de5ec8655a1db3&meta=eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6Ijg2OGFmMjMzMzMwYTk2ZmFjNTUzMTBhMmQyN2E2MmQ1ZWM1YWY5Zjg3ZDBhOTg5OTNhMzk0MjZlMDg1NGI2NzcifQ.eyJ0eXBlIjoibWV0YSIsImF1ZCI6Ijc1YTI4YjUzYTg3N2QyMjgwMTNiNThiOTk3OTExNzQ4ZTZjZjcyNWE2ZTliMzZmYzY2ZGU1ZWM4NjU1YTFkYjMiLCJob3N0bmFtZSI6Im51bGxpbnN0YW5jZS5zdHVkaW8iLCJyZWRpcmVjdF91cmwiOiIvIiwic2VydmljZV90b2tlbl9zdGF0dXMiOmZhbHNlLCJpc193YXJwIjpmYWxzZSwiaXNfZ2F0ZXdheSI6ZmFsc2UsImV4cCI6MTc5NDQ1MzY1NywibmJmIjoxNzk0NDUzMzU3LCJpYXQiOjE3OTQ0NTMzNTcsImF1dGhfc3RhdHVzIjoiTk9ORSIsIm10bHNfYXV0aCI6eyJjZXJ0X2lzc3Vlcl9kbiI6IiIsImNlcnRfc2VyaWFsIjoiIiwiY2VydF9pc3N1ZXJfc2tpIjoiIiwiY2VydF9wcmVzZW50ZWQiOmZhbHNlLCJjb21tb25fbmFtZSI6IiIsImF1dGhfc3RhdHVzIjoiTk9ORSJ9LCJyZWFsX2NvdW50cnkiOiJVUyIsImFwcF9zZXNzaW9uX2hhc2giOiI0YTQ4N2NiYWIyZmUxMTFjOTAyMTdhNDUzMThjMTcxYzIwN2QwNWZkNTE4ZWM0YTQ5ZGEwYmFlY2IyZGY5ZjhhIn0.Q3to_MdvaJnHnrfZwZo6h1rg9yG8a4DqWAq9LLbdwu6tyMJoOWWfw4TNsuV8UBEnDyjsIb9_UHpVUsAHybNTWW1VIIrYQFZIXBypICNcGHfl9t1yL3mwcvAiHAovAWyum1VAU2adRtg1C1FziiM8muNGGZoSCDiZbzRAaOkks7sF7REmNMoWveyThvFkij4Twx0ALEBc9QWT26Vx68C14LbZTqN1H9VbpEDD4rCvPCCZzFNJwaJK1wmGehdS_rkwXHityIXJlYH_MJDs-UN7D7ddtcAi1gJqzS9CweC9q1rlFyxgebqXSd0PTKfqkNVGFbhWAk1DVxPsL78ZjPvXdA&redirect_url=%2F via 2606:4700:300a::6813:c31d → 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/nullinstance.studio.svg)](https://aaaa.bot/nullinstance.studio)

Check again

nullinstance.studio Has IPv6

A (IPv4)	172.67.181.37 104.21.51.136
AAAA (IPv6)	2606:4700:3030::6815:3388 2606:4700:3031::ac43:b525

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: nullinstance.studio
Measured 2026-11-12 03:15:57 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    172.67.181.37, 104.21.51.136
AAAA (IPv6): 2606:4700:3030::6815:3388, 2606:4700:3031::ac43:b525

Readiness grade A: Website, mail and DNS all work over IPv6.
- Website over IPv6: nullinstance.studio has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3030::6815:3388: answers (TCP 443)
    2606:4700:3031::ac43:b525: 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 after 1 redirect: HTTP 200.
    https://nullinstance.studio/ via 2606:4700:3030::6815:3388 -> HTTP 302, certificate: valid
    https://raspy-violet-5917.cloudflareaccess.com/cdn-cgi/access/login/nullinstance.studio?kid=75a28b53a877d228013b58b997911748e6cf725a6e9b36fc66de5ec8655a1db3&meta=eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6Ijg2OGFmMjMzMzMwYTk2ZmFjNTUzMTBhMmQyN2E2MmQ1ZWM1YWY5Zjg3ZDBhOTg5OTNhMzk0MjZlMDg1NGI2NzcifQ.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.Q3to_MdvaJnHnrfZwZo6h1rg9yG8a4DqWAq9LLbdwu6tyMJoOWWfw4TNsuV8UBEnDyjsIb9_UHpVUsAHybNTWW1VIIrYQFZIXBypICNcGHfl9t1yL3mwcvAiHAovAWyum1VAU2adRtg1C1FziiM8muNGGZoSCDiZbzRAaOkks7sF7REmNMoWveyThvFkij4Twx0ALEBc9QWT26Vx68C14LbZTqN1H9VbpEDD4rCvPCCZzFNJwaJK1wmGehdS_rkwXHityIXJlYH_MJDs-UN7D7ddtcAi1gJqzS9CweC9q1rlFyxgebqXSd0PTKfqkNVGFbhWAk1DVxPsL78ZjPvXdA&redirect_url=%2F via 2606:4700:300a::6813:c31d -> HTTP 200, certificate: valid
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/yBQuiTiDjL

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

Checked 2026-11-12 03:15:57 UTC. Full DNS report: dns.pizza/domain/nullinstance.studio · Age, certificate and blocklists: how.is/nullinstance.studio · JSON: /api/v1/nullinstance.studio