Yes — eventferry.app has IPv6.

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

IPv6 readiness

Website, mail and DNS all work over IPv6.

Website over IPv6 eventferry.app has 4 IPv6 addresses and answers on every one we tested (4 more not tested). ✓ 2600:9000:201d:2200:1c:366a:4c00:93a1 answers · 443✓ 2600:9000:201d:7a00:1c:366a:4c00:93a1 answers · 443✓ 2600:9000:201d:8200:1c:366a:4c00:93a1 answers · 443✓ 2600:9000:201d:b400:1c:366a:4c00:93a1 answers · 443– 2600:9000:201d:a600:1c:366a:4c00:93a1 not tested– 2600:9000:201d:8e00:1c:366a:4c00:93a1 not tested– 2600:9000:201d:e200:1c:366a:4c00:93a1 not tested– 2600:9000:201d:8000:1c:366a:4c00:93a1 not tested	yes
www over IPv6 www.eventferry.app has 4 IPv6 addresses and answers on every one we tested (4 more not tested). ✓ 2600:9000:201d:8e00:1c:366a:4c00:93a1 answers · 443✓ 2600:9000:201d:5a00:1c:366a:4c00:93a1 answers · 443✓ 2600:9000:201d:8c00:1c:366a:4c00:93a1 answers · 443✓ 2600:9000:201d:7e00:1c:366a:4c00:93a1 answers · 443– 2600:9000:201d:8000:1c:366a:4c00:93a1 not tested– 2600:9000:201d:4c00:1c:366a:4c00:93a1 not tested– 2600:9000:201d:de00:1c:366a:4c00:93a1 not tested– 2600:9000:201d:d800:1c:366a:4c00:93a1 not tested	yes
Mail servers (MX) have IPv6 Every mail server has an AAAA record. route2.mx.cloudflare.net ✓route3.mx.cloudflare.net ✓route1.mx.cloudflare.net ✓	yes
Nameservers have IPv6 2 of 2 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up. kiki.ns.cloudflare.com ✓marek.ns.cloudflare.com ✓	yes

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

https://eventferry.app/ via 2600:9000:201d:2200:1c:366a:4c00:93a1 → 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/eventferry.app.svg)](https://aaaa.bot/eventferry.app)

Check again

eventferry.app Has IPv6

A (IPv4)	13.226.209.101 13.226.209.25 13.226.209.113 13.226.209.59
AAAA (IPv6)	2600:9000:201d:2200:1c:366a:4c00:93a1 2600:9000:201d:7a00:1c:366a:4c00:93a1 2600:9000:201d:8200:1c:366a:4c00:93a1 2600:9000:201d:b400:1c:366a:4c00:93a1 2600:9000:201d:a600:1c:366a:4c00:93a1 2600:9000:201d:8e00:1c:366a:4c00:93a1 2600:9000:201d:e200:1c:366a:4c00:93a1 2600:9000:201d:8000:1c:366a:4c00:93a1

www.eventferry.app Has IPv6

Alias of	d3cuswlr0z9fe8.cloudfront.net
A (IPv4)	13.226.209.113 13.226.209.101 13.226.209.59 13.226.209.25
AAAA (IPv6)	2600:9000:201d:8e00:1c:366a:4c00:93a1 2600:9000:201d:5a00:1c:366a:4c00:93a1 2600:9000:201d:8c00:1c:366a:4c00:93a1 2600:9000:201d:7e00:1c:366a:4c00:93a1 2600:9000:201d:8000:1c:366a:4c00:93a1 2600:9000:201d:4c00:1c:366a:4c00:93a1 2600:9000:201d:de00:1c:366a:4c00:93a1 2600:9000:201d:d800:1c:366a:4c00:93a1

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: eventferry.app
Measured 2026-10-31 14:45:19 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    13.226.209.101, 13.226.209.25, 13.226.209.113, 13.226.209.59
AAAA (IPv6): 2600:9000:201d:2200:1c:366a:4c00:93a1, 2600:9000:201d:7a00:1c:366a:4c00:93a1, 2600:9000:201d:8200:1c:366a:4c00:93a1, 2600:9000:201d:b400:1c:366a:4c00:93a1, 2600:9000:201d:a600:1c:366a:4c00:93a1, 2600:9000:201d:8e00:1c:366a:4c00:93a1, 2600:9000:201d:e200:1c:366a:4c00:93a1, 2600:9000:201d:8000:1c:366a:4c00:93a1
www AAAA:    2600:9000:201d:8e00:1c:366a:4c00:93a1, 2600:9000:201d:5a00:1c:366a:4c00:93a1, 2600:9000:201d:8c00:1c:366a:4c00:93a1, 2600:9000:201d:7e00:1c:366a:4c00:93a1, 2600:9000:201d:8000:1c:366a:4c00:93a1, 2600:9000:201d:4c00:1c:366a:4c00:93a1, 2600:9000:201d:de00:1c:366a:4c00:93a1, 2600:9000:201d:d800:1c:366a:4c00:93a1

Readiness grade A: Website, mail and DNS all work over IPv6.
- Website over IPv6: eventferry.app has 4 IPv6 addresses and answers on every one we tested (4 more not tested).
    2600:9000:201d:2200:1c:366a:4c00:93a1: answers (TCP 443)
    2600:9000:201d:7a00:1c:366a:4c00:93a1: answers (TCP 443)
    2600:9000:201d:8200:1c:366a:4c00:93a1: answers (TCP 443)
    2600:9000:201d:b400:1c:366a:4c00:93a1: answers (TCP 443)
    2600:9000:201d:a600:1c:366a:4c00:93a1: not tested
    2600:9000:201d:8e00:1c:366a:4c00:93a1: not tested
    2600:9000:201d:e200:1c:366a:4c00:93a1: not tested
    2600:9000:201d:8000:1c:366a:4c00:93a1: not tested
- www over IPv6: www.eventferry.app has 4 IPv6 addresses and answers on every one we tested (4 more not tested).
    2600:9000:201d:8e00:1c:366a:4c00:93a1: answers (TCP 443)
    2600:9000:201d:5a00:1c:366a:4c00:93a1: answers (TCP 443)
    2600:9000:201d:8c00:1c:366a:4c00:93a1: answers (TCP 443)
    2600:9000:201d:7e00:1c:366a:4c00:93a1: answers (TCP 443)
    2600:9000:201d:8000:1c:366a:4c00:93a1: not tested
    2600:9000:201d:4c00:1c:366a:4c00:93a1: not tested
    2600:9000:201d:de00:1c:366a:4c00:93a1: not tested
    2600:9000:201d:d800:1c:366a:4c00:93a1: not tested
- 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: HTTP 200.
    https://eventferry.app/ via 2600:9000:201d:2200:1c:366a:4c00:93a1 -> HTTP 200, certificate: valid
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/chDj1GtjH0

Permanent link: aaaa.bot/r/chDj1GtjH0 · How we measure

Checked 2026-10-31 14:45:19 UTC. Full DNS report: dns.pizza/domain/eventferry.app · JSON: /api/v1/eventferry.app