Yes — hanpu.app has IPv6.

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

IPv6 readiness

Website, mail and DNS all work over IPv6.

Website over IPv6 hanpu.app has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3036::ac43:b9f0 answers · 443✓ 2606:4700:3036::6815:2437 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. galilea.ns.cloudflare.com ✓nile.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://hanpu.app/ via 2606:4700:3036::ac43:b9f0 → 302https://white-darkness-8e6d.cloudflareaccess.com/cdn-cgi/access/login/hanpu.app?kid=2cdfc98dcf9013c8fc2be41e08e80d4de010b854b0bbc5ada119aa25f7b7c500&meta=eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6Ijg2OGFmMjMzMzMwYTk2ZmFjNTUzMTBhMmQyN2E2MmQ1ZWM1YWY5Zjg3ZDBhOTg5OTNhMzk0MjZlMDg1NGI2NzcifQ.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.TOSeOPf7_6kOGSPFLslwoY9gG3ZViqH5fUpnxIuiLBIpaSkKBsn80j0GANNOakTBZIcsVA0U8nN6gSgNOFKwhWjNj2sorT5qJNw1cNhLPWsVv65ep_a2ngEouYHjk6ledxdgppKkL1W-OEfKl8hPQgzfuaGaY1xR53gKkuOKaL3vKswHXpZ2WqFj1Yqg0wnpT6CY71a5XyPCDyaMoK9aruCzX8HvRyLN15sAbrsYrhZXMPvLPljkHEg63IxszvSWcO2YxUTopX9ZEwh0haCte7GF-gZZJHnVJ-85qj84seepms-UGW3IqAPIpiqp84PCoUfLxZUgSAKCPVhpTezlOQ&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/hanpu.app.svg)](https://aaaa.bot/hanpu.app)

Check again

hanpu.app Has IPv6

A (IPv4)	172.67.185.240 104.21.36.55
AAAA (IPv6)	2606:4700:3036::ac43:b9f0 2606:4700:3036::6815:2437

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: hanpu.app
Measured 2026-11-09 13:14:41 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    172.67.185.240, 104.21.36.55
AAAA (IPv6): 2606:4700:3036::ac43:b9f0, 2606:4700:3036::6815:2437

Readiness grade A: Website, mail and DNS all work over IPv6.
- Website over IPv6: hanpu.app has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3036::ac43:b9f0: answers (TCP 443)
    2606:4700:3036::6815:2437: 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://hanpu.app/ via 2606:4700:3036::ac43:b9f0 -> HTTP 302, certificate: valid
    https://white-darkness-8e6d.cloudflareaccess.com/cdn-cgi/access/login/hanpu.app?kid=2cdfc98dcf9013c8fc2be41e08e80d4de010b854b0bbc5ada119aa25f7b7c500&meta=eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6Ijg2OGFmMjMzMzMwYTk2ZmFjNTUzMTBhMmQyN2E2MmQ1ZWM1YWY5Zjg3ZDBhOTg5OTNhMzk0MjZlMDg1NGI2NzcifQ.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.TOSeOPf7_6kOGSPFLslwoY9gG3ZViqH5fUpnxIuiLBIpaSkKBsn80j0GANNOakTBZIcsVA0U8nN6gSgNOFKwhWjNj2sorT5qJNw1cNhLPWsVv65ep_a2ngEouYHjk6ledxdgppKkL1W-OEfKl8hPQgzfuaGaY1xR53gKkuOKaL3vKswHXpZ2WqFj1Yqg0wnpT6CY71a5XyPCDyaMoK9aruCzX8HvRyLN15sAbrsYrhZXMPvLPljkHEg63IxszvSWcO2YxUTopX9ZEwh0haCte7GF-gZZJHnVJ-85qj84seepms-UGW3IqAPIpiqp84PCoUfLxZUgSAKCPVhpTezlOQ&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/_GjfyAOl1h

Permanent link: aaaa.bot/r/_GjfyAOl1h · How we measure

Checked 2026-11-09 13:14:41 UTC. Full DNS report: dns.pizza/domain/hanpu.app · Age, certificate and blocklists: how.is/hanpu.app · JSON: /api/v1/hanpu.app