Yes — kroop.fun has IPv6.

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

IPv6 readiness

Website, mail and DNS all work over IPv6.

Website over IPv6 kroop.fun has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3033::6815:598 answers · 443✓ 2606:4700:3030::ac43:9abb answers · 443	yes
www over IPv6 www.kroop.fun has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3033::6815:598 answers · 443✓ 2606:4700:3030::ac43:9abb answers · 443	yes
Mail servers (MX) have IPv6 Every mail server has an AAAA record. route3.mx.cloudflare.net ✓route2.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. archer.ns.cloudflare.com ✓sonia.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://kroop.fun/ via 2606:4700:3033::6815:598 → 302https://raspy-hall-e3fe.cloudflareaccess.com/cdn-cgi/access/login/kroop.fun?kid=d1336f838344b455a0658ff1a70cd5220e11a9604e9634b87e5ffac71b8e1e1d&meta=eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6Ijg2OGFmMjMzMzMwYTk2ZmFjNTUzMTBhMmQyN2E2MmQ1ZWM1YWY5Zjg3ZDBhOTg5OTNhMzk0MjZlMDg1NGI2NzcifQ.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.DCpTr_33a4FwszhGfSipTDK9z5v3MJvKBo3E2zHhWK_TpmSmZBBSFC9Zqlli_c4tGIbQ4xErOcuCxIJyTq19Y2KXsoo13ohPCBmeF3iISQBAP3dOi0mG_ingGn4TXvZXBy-FKhJsWDRKGu1SDiNW7-OzVYVVw-0mxhfy0o8feo-gFATNOPakuOic5oguQnnJnQ-6f7GiJ1yfF5OmG6IxPpNGlKn5SA2TKQezPmCDp_vk9z6SS3cWP6RNJW-7MK7ZpnPBUPkhVTDyShtIgt2OWqY8_Zd_THeua48PTOTDnK4GEwBWPNIfwLtJlPPymW5dpO9uqii-xJeYr78zQ1NdSg&redirect_url=%2F via 2606:4700:300a::6813:c21d → 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/kroop.fun.svg)](https://aaaa.bot/kroop.fun)

Check again

kroop.fun Has IPv6

A (IPv4)	104.21.5.152 172.67.154.187
AAAA (IPv6)	2606:4700:3033::6815:598 2606:4700:3030::ac43:9abb

www.kroop.fun Has IPv6

A (IPv4)	172.67.154.187 104.21.5.152
AAAA (IPv6)	2606:4700:3033::6815:598 2606:4700:3030::ac43:9abb

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: kroop.fun
Measured 2026-11-11 03:57:03 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    104.21.5.152, 172.67.154.187
AAAA (IPv6): 2606:4700:3033::6815:598, 2606:4700:3030::ac43:9abb
www AAAA:    2606:4700:3033::6815:598, 2606:4700:3030::ac43:9abb

Readiness grade A: Website, mail and DNS all work over IPv6.
- Website over IPv6: kroop.fun has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3033::6815:598: answers (TCP 443)
    2606:4700:3030::ac43:9abb: answers (TCP 443)
- www over IPv6: www.kroop.fun has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3033::6815:598: answers (TCP 443)
    2606:4700:3030::ac43:9abb: 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://kroop.fun/ via 2606:4700:3033::6815:598 -> HTTP 302, certificate: valid
    https://raspy-hall-e3fe.cloudflareaccess.com/cdn-cgi/access/login/kroop.fun?kid=d1336f838344b455a0658ff1a70cd5220e11a9604e9634b87e5ffac71b8e1e1d&meta=eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6Ijg2OGFmMjMzMzMwYTk2ZmFjNTUzMTBhMmQyN2E2MmQ1ZWM1YWY5Zjg3ZDBhOTg5OTNhMzk0MjZlMDg1NGI2NzcifQ.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.DCpTr_33a4FwszhGfSipTDK9z5v3MJvKBo3E2zHhWK_TpmSmZBBSFC9Zqlli_c4tGIbQ4xErOcuCxIJyTq19Y2KXsoo13ohPCBmeF3iISQBAP3dOi0mG_ingGn4TXvZXBy-FKhJsWDRKGu1SDiNW7-OzVYVVw-0mxhfy0o8feo-gFATNOPakuOic5oguQnnJnQ-6f7GiJ1yfF5OmG6IxPpNGlKn5SA2TKQezPmCDp_vk9z6SS3cWP6RNJW-7MK7ZpnPBUPkhVTDyShtIgt2OWqY8_Zd_THeua48PTOTDnK4GEwBWPNIfwLtJlPPymW5dpO9uqii-xJeYr78zQ1NdSg&redirect_url=%2F via 2606:4700:300a::6813:c21d -> HTTP 200, certificate: valid
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/BCQZ27uV_1

Permanent link: aaaa.bot/r/BCQZ27uV_1 · How we measure

Checked 2026-11-11 03:57:03 UTC. Full DNS report: dns.pizza/domain/kroop.fun · Age, certificate and blocklists: how.is/kroop.fun · JSON: /api/v1/kroop.fun