Yes — businessdunes.cloud has IPv6.

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

IPv6 readiness

Website, mail and DNS all work over IPv6.

Website over IPv6 businessdunes.cloud has 4 IPv6 addresses and answers on every one we tested. ✓ 2001:4860:4802:38::15 answers · 443✓ 2001:4860:4802:36::15 answers · 443✓ 2001:4860:4802:34::15 answers · 443✓ 2001:4860:4802:32::15 answers · 443	yes
www over IPv6 www.businessdunes.cloud has 4 IPv6 addresses and answers on every one we tested. ✓ 2001:4860:4802:38::15 answers · 443✓ 2001:4860:4802:36::15 answers · 443✓ 2001:4860:4802:34::15 answers · 443✓ 2001:4860:4802:32::15 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. cosmos.dns-parking.com ✓nova.dns-parking.com ✓	yes

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

https://businessdunes.cloud/ via 2001:4860:4802:38::15 → 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/businessdunes.cloud.svg)](https://aaaa.bot/businessdunes.cloud)

Check again

businessdunes.cloud Has IPv6

A (IPv4)	216.239.36.21 216.239.32.21 216.239.38.21 2.57.91.91 216.239.34.21
AAAA (IPv6)	2001:4860:4802:38::15 2001:4860:4802:36::15 2001:4860:4802:34::15 2001:4860:4802:32::15

www.businessdunes.cloud Has IPv6

Alias of	businessdunes.cloud
A (IPv4)	216.239.36.21 2.57.91.91 216.239.32.21 216.239.38.21 216.239.34.21
AAAA (IPv6)	2001:4860:4802:38::15 2001:4860:4802:36::15 2001:4860:4802:34::15 2001:4860:4802:32::15

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: businessdunes.cloud
Measured 2026-11-13 16:44:34 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    216.239.36.21, 216.239.32.21, 216.239.38.21, 2.57.91.91, 216.239.34.21
AAAA (IPv6): 2001:4860:4802:38::15, 2001:4860:4802:36::15, 2001:4860:4802:34::15, 2001:4860:4802:32::15
www AAAA:    2001:4860:4802:38::15, 2001:4860:4802:36::15, 2001:4860:4802:34::15, 2001:4860:4802:32::15

Readiness grade A: Website, mail and DNS all work over IPv6.
- Website over IPv6: businessdunes.cloud has 4 IPv6 addresses and answers on every one we tested.
    2001:4860:4802:38::15: answers (TCP 443)
    2001:4860:4802:36::15: answers (TCP 443)
    2001:4860:4802:34::15: answers (TCP 443)
    2001:4860:4802:32::15: answers (TCP 443)
- www over IPv6: www.businessdunes.cloud has 4 IPv6 addresses and answers on every one we tested.
    2001:4860:4802:38::15: answers (TCP 443)
    2001:4860:4802:36::15: answers (TCP 443)
    2001:4860:4802:34::15: answers (TCP 443)
    2001:4860:4802:32::15: 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://businessdunes.cloud/ via 2001:4860:4802:38::15 -> HTTP 200, certificate: valid
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/Iy6MG3NULY

Permanent link: aaaa.bot/r/Iy6MG3NULY · How we measure

Checked 2026-11-13 16:44:34 UTC. Full DNS report: dns.pizza/domain/businessdunes.cloud · Age, certificate and blocklists: how.is/businessdunes.cloud · JSON: /api/v1/businessdunes.cloud