Yes — ourcustomers.app has IPv6.

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

This is a saved measurement from 2026-11-05 00:30 UTC. Check ourcustomers.app live now

IPv6 readiness

Website, mail and DNS all work over IPv6.

Website over IPv6 ourcustomers.app has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3036::ac43:aba5 answers · 443✓ 2606:4700:3030::6815:379c 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. greg.ns.cloudflare.com ✓june.ns.cloudflare.com ✓	yes

HTTPS over IPv6 · not part of the grade yet
Answered over IPv6 with a server error (HTTP 503) — can't tell whether that's specific to IPv6.

https://ourcustomers.app/ via 2606:4700:3036::ac43:aba5 → 503

Nothing keeping you from an A

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

Check again

ourcustomers.app Has IPv6

A (IPv4)	104.21.55.156 172.67.171.165
AAAA (IPv6)	2606:4700:3036::ac43:aba5 2606:4700:3030::6815:379c

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: ourcustomers.app
Measured 2026-11-05 00:30:24 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    104.21.55.156, 172.67.171.165
AAAA (IPv6): 2606:4700:3036::ac43:aba5, 2606:4700:3030::6815:379c

Readiness grade A: Website, mail and DNS all work over IPv6.
- Website over IPv6: ourcustomers.app has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3036::ac43:aba5: answers (TCP 443)
    2606:4700:3030::6815:379c: 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): Answered over IPv6 with a server error (HTTP 503) — can't tell whether that's specific to IPv6.
    https://ourcustomers.app/ via 2606:4700:3036::ac43:aba5 -> HTTP 503, certificate: valid
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/lcwNJKsDAz

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

Checked 2026-11-05 00:30:24 UTC. Full DNS report: dns.pizza/domain/ourcustomers.app · Age, certificate and blocklists: how.is/ourcustomers.app · JSON: /api/v1/ourcustomers.app