Yes — liangruixi.dev has IPv6.

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

IPv6 readiness

Website, mail and DNS all work over IPv6.

Website over IPv6 liangruixi.dev has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3033::6815:4f1e answers · 443✓ 2606:4700:3034::ac43:a8ed answers · 443	yes
www over IPv6 www.liangruixi.dev has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3034::ac43:a8ed answers · 443✓ 2606:4700:3033::6815:4f1e 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. emely.ns.cloudflare.com ✓yichun.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://liangruixi.dev/ via 2606:4700:3033::6815:4f1e → 302https://quiet-dawn-7a59.cloudflareaccess.com/cdn-cgi/access/login/liangruixi.dev?kid=9f0ad285ba3052e202cc5b48acac960c547b662b69713b926cd9d0dd191a25f6&meta=eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6Ijg2OGFmMjMzMzMwYTk2ZmFjNTUzMTBhMmQyN2E2MmQ1ZWM1YWY5Zjg3ZDBhOTg5OTNhMzk0MjZlMDg1NGI2NzcifQ.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.IKEt_NbJSi9K4CjFVsggxnl0xycTur7QwVQEFzao5epQC9AEO-TPIoFqWxqJWCpCtVNxysoOVEx03eoGp83mE5HBqNEK_6oNbflxbrlcjnSpVMTwPvHP5zt92kEIVk5DeDr4-IHVfOizbAkfLqRxmO7uGUc4zZrkuvS5j95bZywPWIlFcXUKTVf5kjCDD8qkNJ04BlGul6qREWTTziWLQXeywHf0bBtxEwovEXlffTlqLx0BJ82r-WIo0pVllmOGV_WX21RfUeQ2QXE2TT2mdx2qnhu9LP2LZa82goVdLw6k2KpIW3jwlHNmiWVfoOSxrzyqLGJwxVpWeKJdDmz2JQ&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/liangruixi.dev.svg)](https://aaaa.bot/liangruixi.dev)

Check again

liangruixi.dev Has IPv6

A (IPv4)	104.21.79.30 172.67.168.237
AAAA (IPv6)	2606:4700:3033::6815:4f1e 2606:4700:3034::ac43:a8ed

www.liangruixi.dev Has IPv6

A (IPv4)	104.21.79.30 172.67.168.237
AAAA (IPv6)	2606:4700:3034::ac43:a8ed 2606:4700:3033::6815:4f1e

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: liangruixi.dev
Measured 2026-11-12 03:07:48 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    104.21.79.30, 172.67.168.237
AAAA (IPv6): 2606:4700:3033::6815:4f1e, 2606:4700:3034::ac43:a8ed
www AAAA:    2606:4700:3034::ac43:a8ed, 2606:4700:3033::6815:4f1e

Readiness grade A: Website, mail and DNS all work over IPv6.
- Website over IPv6: liangruixi.dev has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3033::6815:4f1e: answers (TCP 443)
    2606:4700:3034::ac43:a8ed: answers (TCP 443)
- www over IPv6: www.liangruixi.dev has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3034::ac43:a8ed: answers (TCP 443)
    2606:4700:3033::6815:4f1e: 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://liangruixi.dev/ via 2606:4700:3033::6815:4f1e -> HTTP 302, certificate: valid
    https://quiet-dawn-7a59.cloudflareaccess.com/cdn-cgi/access/login/liangruixi.dev?kid=9f0ad285ba3052e202cc5b48acac960c547b662b69713b926cd9d0dd191a25f6&meta=eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6Ijg2OGFmMjMzMzMwYTk2ZmFjNTUzMTBhMmQyN2E2MmQ1ZWM1YWY5Zjg3ZDBhOTg5OTNhMzk0MjZlMDg1NGI2NzcifQ.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.IKEt_NbJSi9K4CjFVsggxnl0xycTur7QwVQEFzao5epQC9AEO-TPIoFqWxqJWCpCtVNxysoOVEx03eoGp83mE5HBqNEK_6oNbflxbrlcjnSpVMTwPvHP5zt92kEIVk5DeDr4-IHVfOizbAkfLqRxmO7uGUc4zZrkuvS5j95bZywPWIlFcXUKTVf5kjCDD8qkNJ04BlGul6qREWTTziWLQXeywHf0bBtxEwovEXlffTlqLx0BJ82r-WIo0pVllmOGV_WX21RfUeQ2QXE2TT2mdx2qnhu9LP2LZa82goVdLw6k2KpIW3jwlHNmiWVfoOSxrzyqLGJwxVpWeKJdDmz2JQ&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/JmZyAD1aMA

Permanent link: aaaa.bot/r/JmZyAD1aMA · How we measure

Checked 2026-11-12 03:07:48 UTC. Full DNS report: dns.pizza/domain/liangruixi.dev · Age, certificate and blocklists: how.is/liangruixi.dev · JSON: /api/v1/liangruixi.dev