Yes — denflow.app has IPv6.

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

This is a saved measurement from 2026-11-14 12:30 UTC. Check denflow.app live now

B
IPv6 readiness
Works over IPv6, with one gap: its mail servers lack IPv6.
Website over IPv6
denflow.app has 2 IPv6 addresses and answers on every one we tested.
✓ 2606:4700:3037::6815:e39 answers · 443✓ 2606:4700:3033::ac43:9e18 answers · 443
yes
Mail servers (MX) have IPv6
None of the mail servers has an AAAA record.
mx01.dm.aliyun.com ✗
no
Nameservers have IPv6
2 of 2 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.
athena.ns.cloudflare.com ✓merlin.ns.cloudflare.com ✓
yes
HTTPS over IPv6 · not part of the grade yet
Loads over IPv6 with a valid certificate: HTTP 200.
https://denflow.app/ via 2606:4700:3037::6815:e39 → 200
works

What's keeping denflow.app from an A

  1. Mail servers without IPv6
    mx01.dm.aliyun.com has no AAAA record, so mail from IPv6-only servers can't reach it directly. If a provider runs your mail, that's their setting; if you run it, add AAAA records for these hosts.

Check again

denflow.app  Has IPv6

A (IPv4)104.21.14.57
172.67.158.24
AAAA (IPv6)2606:4700:3037::6815:e39
2606:4700:3033::ac43:9e18

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

 Permanent link: aaaa.bot/r/Cab6OdLKob · How we measure

Checked 2026-11-14 12:30:55 UTC. Full DNS report: dns.pizza/domain/denflow.app · Age, certificate and blocklists: how.is/denflow.app · JSON: /api/v1/denflow.app