Yes — jiangxiatech.icu has IPv6.

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

IPv6 readiness

Works over IPv6, with one gap: its mail servers lack IPv6.

Website over IPv6 jiangxiatech.icu has 2 IPv6 addresses and answers on every one we tested. ✓ 2a02:4780:84:a4c6:246a:5b69:5752:9b29 answers · 443✓ 2a02:4780:84:fc4e:b92a:6f35:2459:537a answers · 443	yes
www over IPv6 www.jiangxiatech.icu has 2 IPv6 addresses and answers on every one we tested. ✓ 2a02:4780:21:76df:7766:f816:6db0:f13f answers · 443✓ 2a02:4780:1e:606e:e46b:a997:a05c:7c60 answers · 443	yes
Mail servers (MX) have IPv6 None of the mail servers has an AAAA record. mail.jiangxiatech.icu ✗	no
Nameservers have IPv6 2 of 2 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up. dns12.hichina.com ✓dns11.hichina.com ✓	yes

HTTPS over IPv6 · not part of the grade yet
jiangxiatech.icu didn't complete an HTTPS request over IPv6 (ERR_SSL_TLSV1_ALERT_INTERNAL_ERROR).

https://jiangxiatech.icu/ via 2a02:4780:84:a4c6:246a:5b69:5752:9b29 · ERR_SSL_TLSV1_ALERT_INTERNAL_ERROR

What's keeping jiangxiatech.icu from an A

Mail servers without IPv6
mail.jiangxiatech.icu has no AAAA record, so mail from IPv6-only servers can't reach it directly. If a provider runs your mail, that's their setting; if you run it, add AAAA records for these hosts.

Check again

jiangxiatech.icu Has IPv6

Alias of	connect.hostinger.com → connect.hstgr.net
A (IPv4)	212.1.212.194 191.96.144.213
AAAA (IPv6)	2a02:4780:84:a4c6:246a:5b69:5752:9b29 2a02:4780:84:fc4e:b92a:6f35:2459:537a

www.jiangxiatech.icu Has IPv6

Alias of	connect.hostinger.com → connect.hstgr.net
A (IPv4)	212.1.212.147 191.101.104.86
AAAA (IPv6)	2a02:4780:21:76df:7766:f816:6db0:f13f 2a02:4780:1e:606e:e46b:a997:a05c:7c60

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: jiangxiatech.icu
Measured 2026-11-07 20:34:52 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    212.1.212.194, 191.96.144.213
AAAA (IPv6): 2a02:4780:84:a4c6:246a:5b69:5752:9b29, 2a02:4780:84:fc4e:b92a:6f35:2459:537a
www AAAA:    2a02:4780:21:76df:7766:f816:6db0:f13f, 2a02:4780:1e:606e:e46b:a997:a05c:7c60

Readiness grade B: Works over IPv6, with one gap: its mail servers lack IPv6.
- Website over IPv6: jiangxiatech.icu has 2 IPv6 addresses and answers on every one we tested.
    2a02:4780:84:a4c6:246a:5b69:5752:9b29: answers (TCP 443)
    2a02:4780:84:fc4e:b92a:6f35:2459:537a: answers (TCP 443)
- www over IPv6: www.jiangxiatech.icu has 2 IPv6 addresses and answers on every one we tested.
    2a02:4780:21:76df:7766:f816:6db0:f13f: answers (TCP 443)
    2a02:4780:1e:606e:e46b:a997:a05c:7c60: answers (TCP 443)
- Mail servers (MX) have IPv6: None of the mail servers 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): jiangxiatech.icu didn't complete an HTTPS request over IPv6 (ERR_SSL_TLSV1_ALERT_INTERNAL_ERROR).
    https://jiangxiatech.icu/ via 2a02:4780:84:a4c6:246a:5b69:5752:9b29 (ERR_SSL_TLSV1_ALERT_INTERNAL_ERROR)
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/K8uxmPQqKe

Permanent link: aaaa.bot/r/K8uxmPQqKe · How we measure

Checked 2026-11-07 20:34:52 UTC. Full DNS report: dns.pizza/domain/jiangxiatech.icu · Age, certificate and blocklists: how.is/jiangxiatech.icu · JSON: /api/v1/jiangxiatech.icu