Yes — k111.dev has IPv6.

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

IPv6 readiness

Website, mail and DNS all work over IPv6.

Website over IPv6 k111.dev has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3033::6815:4889 answers · 443✓ 2606:4700:3035::ac43:9725 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. rustam.ns.cloudflare.com ✓summer.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://k111.dev/ via 2606:4700:3033::6815:4889 → 302https://broad-dust-8f90.cloudflareaccess.com/cdn-cgi/access/login/k111.dev?kid=ca5618d9c91fc2d8662e871dec7b967ae783127adce325f809904e2f67cab13c&meta=eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6IjBiNzFjZjg4NTk0YWJmNzEzNGQzMWNiNmJlNmU0ODNiMDE2YWEyYTU2NWQ5ODQ1NTQ4YTQzMzM1MDE3OWY2NzEifQ.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.Z0_P93X93jb0hXGPTl7wy0nmqDD7tunrZ40iak6apY017SyZ5Em5xd_IyQHKoZdS4XoQoWWOlUmzCF5wQJGifKUKgQ-gpyPkUo43lbvErU-enDzTalDsISE2OYb_iK5q2R5IXmg385A3GztKS251DacZ3OlEIgRV81qWZLsyfUEUwW6cfrv9ZyFay87LBYFfnKCmuWc-L_nibOYmBcVugRJxSRTO_3qvJJth6OoG0YHj9eVocsOQnlUFEyugbYR5NLeAmuO-jkGj9Nzr08odPGk5Uc7TmtuTCs6E_E0dhM81sueJbR_cdC1rap95VkUDdQNNDd7g2j52yRTEnVUUiQ&redirect_url=%2F via 2606:4700:300a::6813:c21d → 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/k111.dev.svg)](https://aaaa.bot/k111.dev)

Check again

k111.dev Has IPv6

A (IPv4)	172.67.151.37 104.21.72.137
AAAA (IPv6)	2606:4700:3033::6815:4889 2606:4700:3035::ac43:9725

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: k111.dev
Measured 2026-11-08 10:11:34 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    172.67.151.37, 104.21.72.137
AAAA (IPv6): 2606:4700:3033::6815:4889, 2606:4700:3035::ac43:9725

Readiness grade A: Website, mail and DNS all work over IPv6.
- Website over IPv6: k111.dev has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3033::6815:4889: answers (TCP 443)
    2606:4700:3035::ac43:9725: 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://k111.dev/ via 2606:4700:3033::6815:4889 -> HTTP 302, certificate: valid
    https://broad-dust-8f90.cloudflareaccess.com/cdn-cgi/access/login/k111.dev?kid=ca5618d9c91fc2d8662e871dec7b967ae783127adce325f809904e2f67cab13c&meta=eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6IjBiNzFjZjg4NTk0YWJmNzEzNGQzMWNiNmJlNmU0ODNiMDE2YWEyYTU2NWQ5ODQ1NTQ4YTQzMzM1MDE3OWY2NzEifQ.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.Z0_P93X93jb0hXGPTl7wy0nmqDD7tunrZ40iak6apY017SyZ5Em5xd_IyQHKoZdS4XoQoWWOlUmzCF5wQJGifKUKgQ-gpyPkUo43lbvErU-enDzTalDsISE2OYb_iK5q2R5IXmg385A3GztKS251DacZ3OlEIgRV81qWZLsyfUEUwW6cfrv9ZyFay87LBYFfnKCmuWc-L_nibOYmBcVugRJxSRTO_3qvJJth6OoG0YHj9eVocsOQnlUFEyugbYR5NLeAmuO-jkGj9Nzr08odPGk5Uc7TmtuTCs6E_E0dhM81sueJbR_cdC1rap95VkUDdQNNDd7g2j52yRTEnVUUiQ&redirect_url=%2F via 2606:4700:300a::6813:c21d -> HTTP 200, certificate: valid
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/MCdIQNaiYs

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

Checked 2026-11-08 10:11:34 UTC. Full DNS report: dns.pizza/domain/k111.dev · Age, certificate and blocklists: how.is/k111.dev · JSON: /api/v1/k111.dev