Yes — joinvenu.app has IPv6.

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

IPv6 readiness

Website, mail and DNS all work over IPv6.

Website over IPv6 joinvenu.app has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3035::6815:1bb2 answers · 443✓ 2606:4700:3035::ac43:8f6b answers · 443	yes
Mail servers (MX) have IPv6 Every mail server has an AAAA record. route1.mx.cloudflare.net ✓route2.mx.cloudflare.net ✓route3.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. clarissa.ns.cloudflare.com ✓elliott.ns.cloudflare.com ✓	yes

HTTPS over IPv6 · not part of the grade yet
Loads over IPv6 with a valid certificate after 1 redirect: HTTP 200.

https://joinvenu.app/ via 2606:4700:3035::6815:1bb2 → 302https://twilight-band-35d2.cloudflareaccess.com/cdn-cgi/access/login/joinvenu.app?kid=07d150f8194a80454996dc9aaaf2622e4051fa0ce7e40a1c809370b9e213c8b0&meta=eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6Ijg2OGFmMjMzMzMwYTk2ZmFjNTUzMTBhMmQyN2E2MmQ1ZWM1YWY5Zjg3ZDBhOTg5OTNhMzk0MjZlMDg1NGI2NzcifQ.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.GAjFwGsxXqCUl3uZXRoo1HZQ6DS2sWIBbSSBBFrjS3k4w1nwWYomXs16kEa61vPcdelo9x-WVArO0w3-C3givq5r8E0Egz-QE0J-QU1nKwpAmuR5p99bab4Uoml6cEicCIjn75N5bGzH6MMdachxsKS6vtndrFvEookk8RaKqaB16A8i59clgpMEE4kpBJx4IcROhPCw32LkDzZhXdWguZFxXKTTULyFT6vZJOwttGZofQB3d11PCpnkqoqRhYoXsXVyNdgSf2mBtoNMGKhaOeAb7lUtLRa4z_i0a8lXvPLRTgrmvjUnlZePev24VmaBvLndYh26Fti4uN-pI1xizQ&redirect_url=%2F via 2606:4700:300a::6813:c31d → 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/joinvenu.app.svg)](https://aaaa.bot/joinvenu.app)

Check again

joinvenu.app Has IPv6

A (IPv4)	104.21.27.178 172.67.143.107
AAAA (IPv6)	2606:4700:3035::6815:1bb2 2606:4700:3035::ac43:8f6b

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: joinvenu.app
Measured 2026-11-01 04:25:09 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    104.21.27.178, 172.67.143.107
AAAA (IPv6): 2606:4700:3035::6815:1bb2, 2606:4700:3035::ac43:8f6b

Readiness grade A: Website, mail and DNS all work over IPv6.
- Website over IPv6: joinvenu.app has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3035::6815:1bb2: answers (TCP 443)
    2606:4700:3035::ac43:8f6b: 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 1 redirect: HTTP 200.
    https://joinvenu.app/ via 2606:4700:3035::6815:1bb2 -> HTTP 302, certificate: valid
    https://twilight-band-35d2.cloudflareaccess.com/cdn-cgi/access/login/joinvenu.app?kid=07d150f8194a80454996dc9aaaf2622e4051fa0ce7e40a1c809370b9e213c8b0&meta=eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6Ijg2OGFmMjMzMzMwYTk2ZmFjNTUzMTBhMmQyN2E2MmQ1ZWM1YWY5Zjg3ZDBhOTg5OTNhMzk0MjZlMDg1NGI2NzcifQ.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.GAjFwGsxXqCUl3uZXRoo1HZQ6DS2sWIBbSSBBFrjS3k4w1nwWYomXs16kEa61vPcdelo9x-WVArO0w3-C3givq5r8E0Egz-QE0J-QU1nKwpAmuR5p99bab4Uoml6cEicCIjn75N5bGzH6MMdachxsKS6vtndrFvEookk8RaKqaB16A8i59clgpMEE4kpBJx4IcROhPCw32LkDzZhXdWguZFxXKTTULyFT6vZJOwttGZofQB3d11PCpnkqoqRhYoXsXVyNdgSf2mBtoNMGKhaOeAb7lUtLRa4z_i0a8lXvPLRTgrmvjUnlZePev24VmaBvLndYh26Fti4uN-pI1xizQ&redirect_url=%2F via 2606:4700:300a::6813:c31d -> HTTP 200, certificate: valid
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/8oTzEDAeNt

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

Checked 2026-11-01 04:25:09 UTC. Full DNS report: dns.pizza/domain/joinvenu.app · JSON: /api/v1/joinvenu.app