Yes — macstack.tech has IPv6.

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

This is a saved measurement from 2026-11-02 09:07 UTC. Check macstack.tech live now

IPv6 readiness

Website, mail and DNS all work over IPv6.

Website over IPv6 macstack.tech has 2 IPv6 addresses and answers on every one we tested. ✓ 2a02:4780:84:7bc1:76cc:6400:921f:b3c0 answers · 443✓ 2a02:4780:84:fb99:5d6e:e038:dcbc:548 answers · 443	yes
www over IPv6 www.macstack.tech has 2 IPv6 addresses and answers on every one we tested. ✓ 2a02:4780:84:2b30:6935:539a:4994:53f9 answers · 443✓ 2a02:4780:84:d67f:772d:5a78:562a:54a8 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. atlas.dns-parking.com ✓hyperion.dns-parking.com ✓	yes

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

https://macstack.tech/ via 2a02:4780:84:7bc1:76cc:6400:921f:b3c0 → 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/macstack.tech.svg)](https://aaaa.bot/macstack.tech)

Check again

macstack.tech Has IPv6

A (IPv4)	88.222.222.17 84.32.84.175
AAAA (IPv6)	2a02:4780:84:7bc1:76cc:6400:921f:b3c0 2a02:4780:84:fb99:5d6e:e038:dcbc:548

www.macstack.tech Has IPv6

Alias of	www.macstack.tech.cdn.hstgr.net
A (IPv4)	212.1.212.83 191.101.104.14
AAAA (IPv6)	2a02:4780:84:2b30:6935:539a:4994:53f9 2a02:4780:84:d67f:772d:5a78:562a:54a8

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: macstack.tech
Measured 2026-11-02 09:07:35 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    88.222.222.17, 84.32.84.175
AAAA (IPv6): 2a02:4780:84:7bc1:76cc:6400:921f:b3c0, 2a02:4780:84:fb99:5d6e:e038:dcbc:548
www AAAA:    2a02:4780:84:2b30:6935:539a:4994:53f9, 2a02:4780:84:d67f:772d:5a78:562a:54a8

Readiness grade A: Website, mail and DNS all work over IPv6.
- Website over IPv6: macstack.tech has 2 IPv6 addresses and answers on every one we tested.
    2a02:4780:84:7bc1:76cc:6400:921f:b3c0: answers (TCP 443)
    2a02:4780:84:fb99:5d6e:e038:dcbc:548: answers (TCP 443)
- www over IPv6: www.macstack.tech has 2 IPv6 addresses and answers on every one we tested.
    2a02:4780:84:2b30:6935:539a:4994:53f9: answers (TCP 443)
    2a02:4780:84:d67f:772d:5a78:562a:54a8: 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://macstack.tech/ via 2a02:4780:84:7bc1:76cc:6400:921f:b3c0 -> HTTP 200, certificate: valid
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/0bfgBVB3fT

Permanent link: aaaa.bot/r/0bfgBVB3fT · How we measure

Checked 2026-11-02 09:07:35 UTC. Full DNS report: dns.pizza/domain/macstack.tech · JSON: /api/v1/macstack.tech