Yes — 4gapp.net has IPv6.

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

IPv6 readiness

Website, mail and DNS all work over IPv6.

Website over IPv6 4gapp.net has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3033::ac43:8f3d answers · 443✓ 2606:4700:3030::6815:1ba0 answers · 443	yes
www over IPv6 www.4gapp.net has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3030::6815:1ba0 answers · 443✓ 2606:4700:3033::ac43:8f3d 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. bowen.ns.cloudflare.com ✓emma.ns.cloudflare.com ✓	yes

HTTPS over IPv6 · not part of the grade yet
Loads over IPv6 with a valid certificate: HTTP 403.

https://4gapp.net/ via 2606:4700:3033::ac43:8f3d → 403

works

Nothing keeping you from an A

Nothing to fix
Show it off: add the badge to your README.
[![IPv6](https://aaaa.bot/badge/4gapp.net.svg)](https://aaaa.bot/4gapp.net)

Check again

4gapp.net Has IPv6

A (IPv4)	172.67.143.61 104.21.27.160
AAAA (IPv6)	2606:4700:3033::ac43:8f3d 2606:4700:3030::6815:1ba0

www.4gapp.net Has IPv6

A (IPv4)	104.21.27.160 172.67.143.61
AAAA (IPv6)	2606:4700:3030::6815:1ba0 2606:4700:3033::ac43:8f3d

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: 4gapp.net
Measured 2026-11-03 01:05:50 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    172.67.143.61, 104.21.27.160
AAAA (IPv6): 2606:4700:3033::ac43:8f3d, 2606:4700:3030::6815:1ba0
www AAAA:    2606:4700:3030::6815:1ba0, 2606:4700:3033::ac43:8f3d

Readiness grade A: Website, mail and DNS all work over IPv6.
- Website over IPv6: 4gapp.net has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3033::ac43:8f3d: answers (TCP 443)
    2606:4700:3030::6815:1ba0: answers (TCP 443)
- www over IPv6: www.4gapp.net has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3030::6815:1ba0: answers (TCP 443)
    2606:4700:3033::ac43:8f3d: 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 403.
    https://4gapp.net/ via 2606:4700:3033::ac43:8f3d -> HTTP 403, certificate: valid
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/g14OrqLcIj

Permanent link: aaaa.bot/r/g14OrqLcIj · How we measure

Checked 2026-11-03 01:05:50 UTC. Full DNS report: dns.pizza/domain/4gapp.net · Age, certificate and blocklists: how.is/4gapp.net · JSON: /api/v1/4gapp.net