Yes — tranquangthien.online has IPv6.

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

This is a saved measurement from 2026-11-10 10:50 UTC. Check tranquangthien.online live now

IPv6 readiness

Website, mail and DNS all work over IPv6.

Website over IPv6 tranquangthien.online has 2 IPv6 addresses and answers on every one we tested. ✓ 2a02:4780:84:f7ee:a3c6:30d3:21d8:9d2c answers · 443✓ 2a02:4780:84:cd08:fdac:f4cf:4f56:1293 answers · 443	yes
www over IPv6 www.tranquangthien.online has 2 IPv6 addresses and answers on every one we tested. ✓ 2a02:4780:4c:640e:f3fe:2d86:64e8:2c07 answers · 443✓ 2a02:4780:4d:1232:4163:27d:36f5:313e 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. athena.dns-parking.com ✓apollo.dns-parking.com ✓	yes

HTTPS over IPv6 · not part of the grade yet
Loads over IPv6 with a valid certificate: HTTP 200.

https://tranquangthien.online/ via 2a02:4780:84:f7ee:a3c6:30d3:21d8:9d2c → 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/tranquangthien.online.svg)](https://aaaa.bot/tranquangthien.online)

Check again

tranquangthien.online Has IPv6

A (IPv4)	88.222.222.134 84.32.84.167
AAAA (IPv6)	2a02:4780:84:f7ee:a3c6:30d3:21d8:9d2c 2a02:4780:84:cd08:fdac:f4cf:4f56:1293

www.tranquangthien.online Has IPv6

Alias of	www.tranquangthien.online.cdn.hstgr.net
A (IPv4)	88.223.87.243 145.223.124.126
AAAA (IPv6)	2a02:4780:4c:640e:f3fe:2d86:64e8:2c07 2a02:4780:4d:1232:4163:27d:36f5:313e

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: tranquangthien.online
Measured 2026-11-10 10:50:27 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    88.222.222.134, 84.32.84.167
AAAA (IPv6): 2a02:4780:84:f7ee:a3c6:30d3:21d8:9d2c, 2a02:4780:84:cd08:fdac:f4cf:4f56:1293
www AAAA:    2a02:4780:4c:640e:f3fe:2d86:64e8:2c07, 2a02:4780:4d:1232:4163:27d:36f5:313e

Readiness grade A: Website, mail and DNS all work over IPv6.
- Website over IPv6: tranquangthien.online has 2 IPv6 addresses and answers on every one we tested.
    2a02:4780:84:f7ee:a3c6:30d3:21d8:9d2c: answers (TCP 443)
    2a02:4780:84:cd08:fdac:f4cf:4f56:1293: answers (TCP 443)
- www over IPv6: www.tranquangthien.online has 2 IPv6 addresses and answers on every one we tested.
    2a02:4780:4c:640e:f3fe:2d86:64e8:2c07: answers (TCP 443)
    2a02:4780:4d:1232:4163:27d:36f5:313e: 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: HTTP 200.
    https://tranquangthien.online/ via 2a02:4780:84:f7ee:a3c6:30d3:21d8:9d2c -> HTTP 200, certificate: valid
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/StxPXCinf1

Permanent link: aaaa.bot/r/StxPXCinf1 · How we measure

Checked 2026-11-10 10:50:27 UTC. Full DNS report: dns.pizza/domain/tranquangthien.online · Age, certificate and blocklists: how.is/tranquangthien.online · JSON: /api/v1/tranquangthien.online