Yes — htmb.site has IPv6.

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

IPv6 readiness

Website, mail and DNS all work over IPv6.

Website over IPv6 htmb.site has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3036::6815:5570 answers · 443✓ 2606:4700:3031::ac43:ccd3 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. aryanna.ns.cloudflare.com ✓everton.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://htmb.site/ via 2606:4700:3036::6815:5570 → 302https://htmb.cloudflareaccess.com/cdn-cgi/access/login/htmb.site?kid=cd961feef714f44c6aeaccc216b30151b744ef6828575a821b313fb77ecbba37&meta=eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6Ijg2OGFmMjMzMzMwYTk2ZmFjNTUzMTBhMmQyN2E2MmQ1ZWM1YWY5Zjg3ZDBhOTg5OTNhMzk0MjZlMDg1NGI2NzcifQ.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.qs2dTExfXAlZH9ZmuP-d9GJ6waDCjzsppxEgJK10Oyn5r9j9-sPxHJ5BmXmPJZ3ExCEA5Q9En2R0d-YcX4MkZ4ifH8xljzXkY08CfeYBpdLqA0BCmdy6bgDaeDpRJVOh75YdqmsTU1dJusFFLVjneGbvOmiZgq9N1CaARWfTNni_OxmAkXYkNaKgX_GCM8UJN0L8rXfqHzYHmqx9YOpM7ixeUkM1b_CXgJohGnr-xCOShbDhqjw2KSxz82CGmsldSJrbaGXzsku2nc7LdV3KMeCR7H9eSVpnMUwTs7vXqj94tSXAgwXu0I-Ed4Xw_jgu0bZxQIAnWqFxxO6ukPejQA&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/htmb.site.svg)](https://aaaa.bot/htmb.site)

Check again

htmb.site Has IPv6

A (IPv4)	172.67.204.211 104.21.85.112
AAAA (IPv6)	2606:4700:3036::6815:5570 2606:4700:3031::ac43:ccd3

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: htmb.site
Measured 2026-11-05 22:47:10 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    172.67.204.211, 104.21.85.112
AAAA (IPv6): 2606:4700:3036::6815:5570, 2606:4700:3031::ac43:ccd3

Readiness grade A: Website, mail and DNS all work over IPv6.
- Website over IPv6: htmb.site has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3036::6815:5570: answers (TCP 443)
    2606:4700:3031::ac43:ccd3: 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://htmb.site/ via 2606:4700:3036::6815:5570 -> HTTP 302, certificate: valid
    https://htmb.cloudflareaccess.com/cdn-cgi/access/login/htmb.site?kid=cd961feef714f44c6aeaccc216b30151b744ef6828575a821b313fb77ecbba37&meta=eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6Ijg2OGFmMjMzMzMwYTk2ZmFjNTUzMTBhMmQyN2E2MmQ1ZWM1YWY5Zjg3ZDBhOTg5OTNhMzk0MjZlMDg1NGI2NzcifQ.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.qs2dTExfXAlZH9ZmuP-d9GJ6waDCjzsppxEgJK10Oyn5r9j9-sPxHJ5BmXmPJZ3ExCEA5Q9En2R0d-YcX4MkZ4ifH8xljzXkY08CfeYBpdLqA0BCmdy6bgDaeDpRJVOh75YdqmsTU1dJusFFLVjneGbvOmiZgq9N1CaARWfTNni_OxmAkXYkNaKgX_GCM8UJN0L8rXfqHzYHmqx9YOpM7ixeUkM1b_CXgJohGnr-xCOShbDhqjw2KSxz82CGmsldSJrbaGXzsku2nc7LdV3KMeCR7H9eSVpnMUwTs7vXqj94tSXAgwXu0I-Ed4Xw_jgu0bZxQIAnWqFxxO6ukPejQA&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/D2WPTSKPCz

Permanent link: aaaa.bot/r/D2WPTSKPCz · How we measure

Checked 2026-11-05 22:47:10 UTC. Full DNS report: dns.pizza/domain/htmb.site · Age, certificate and blocklists: how.is/htmb.site · JSON: /api/v1/htmb.site