Yes — wubbo.app has IPv6.

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

This is a saved measurement from 2026-11-08 19:37 UTC. Check wubbo.app live now

IPv6 readiness

Website, mail and DNS all work over IPv6.

Website over IPv6 wubbo.app has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3036::ac43:ca63 answers · 443✓ 2606:4700:3031::6815:2cb4 answers · 443	yes
www over IPv6 www.wubbo.app has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3031::6815:2cb4 answers · 443✓ 2606:4700:3036::ac43:ca63 answers · 443	yes
Mail servers (MX) have IPv6 Every mail server has an AAAA record. mx1.mijn.host ✓mx2.mijn.host ✓	yes
Nameservers have IPv6 2 of 2 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up. david.ns.cloudflare.com ✓zelda.ns.cloudflare.com ✓	yes

HTTPS over IPv6 · not part of the grade yet
Loads over IPv6 with a valid certificate after 2 redirects: HTTP 200.

https://wubbo.app/ via 2606:4700:3036::ac43:ca63 → 301https://www.wubbo.app/ via 2606:4700:3031::6815:2cb4 → 303https://www.wubbo.app/sign-in via 2606:4700:3031::6815:2cb4 → 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/wubbo.app.svg)](https://aaaa.bot/wubbo.app)

Check again

wubbo.app Has IPv6

A (IPv4)	172.67.202.99 104.21.44.180
AAAA (IPv6)	2606:4700:3036::ac43:ca63 2606:4700:3031::6815:2cb4

www.wubbo.app Has IPv6

A (IPv4)	104.21.44.180 172.67.202.99
AAAA (IPv6)	2606:4700:3031::6815:2cb4 2606:4700:3036::ac43:ca63

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: wubbo.app
Measured 2026-11-08 19:37:50 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    172.67.202.99, 104.21.44.180
AAAA (IPv6): 2606:4700:3036::ac43:ca63, 2606:4700:3031::6815:2cb4
www AAAA:    2606:4700:3031::6815:2cb4, 2606:4700:3036::ac43:ca63

Readiness grade A: Website, mail and DNS all work over IPv6.
- Website over IPv6: wubbo.app has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3036::ac43:ca63: answers (TCP 443)
    2606:4700:3031::6815:2cb4: answers (TCP 443)
- www over IPv6: www.wubbo.app has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3031::6815:2cb4: answers (TCP 443)
    2606:4700:3036::ac43:ca63: answers (TCP 443)
- Mail servers (MX) have IPv6: Every mail server 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 after 2 redirects: HTTP 200.
    https://wubbo.app/ via 2606:4700:3036::ac43:ca63 -> HTTP 301, certificate: valid
    https://www.wubbo.app/ via 2606:4700:3031::6815:2cb4 -> HTTP 303, certificate: valid
    https://www.wubbo.app/sign-in via 2606:4700:3031::6815:2cb4 -> HTTP 200, certificate: valid
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/8tkDJiiXUD

Permanent link: aaaa.bot/r/8tkDJiiXUD · How we measure

Checked 2026-11-08 19:37:50 UTC. Full DNS report: dns.pizza/domain/wubbo.app · Age, certificate and blocklists: how.is/wubbo.app · JSON: /api/v1/wubbo.app