Yes — kaff.quest has IPv6.

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

IPv6 readiness

Website, mail and DNS all work over IPv6.

Website over IPv6 kaff.quest has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3033::ac43:af79 answers · 443✓ 2606:4700:3037::6815:116b answers · 443	yes
Mail servers (MX) have IPv6 No MX records, so mail goes to the domain's own address (implicit MX). It has an AAAA record.	yes
Nameservers have IPv6 2 of 2 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up. cass.ns.cloudflare.com ✓nick.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://kaff.quest/ via 2606:4700:3033::ac43:af79 → 302https://lukashoch132535.cloudflareaccess.com/cdn-cgi/access/login/kaff.quest?kid=258aef8f48deda028a328fdcd0ca2955aae5467e1c65f822c712ef1a45c44d6f&meta=eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6Ijg2OGFmMjMzMzMwYTk2ZmFjNTUzMTBhMmQyN2E2MmQ1ZWM1YWY5Zjg3ZDBhOTg5OTNhMzk0MjZlMDg1NGI2NzcifQ.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.lk5lgW5HN1VS3cbnHQUTSNQwHCJsz_sMNBn1HNHngDwEihx-Lh5XtpwVQmXgABmcu1clr6aUoH_vR4T1wlOXG-pbvBss4h2vzbPl_zkSk3Y8g_-3PR_rGi_tb3jRQ12IRINjubQTSJkXSPTGF4SqILSmGQwOYgcVxgPIwB6q-1j9rGybEOSggW9M2K2GUrM0atVCiGXpGK4OIaXoelqDMnE41GZW7MUOjskikLysLxlpgdK1czUuudbD15DP1cIgTU9yADh7cbOMXakobKeDtxodBOIxfrLk813mDufoh1XFL84oNTmr28saarcrrOHn7tkvfjeZL1j_08a5TmvLgA&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/kaff.quest.svg)](https://aaaa.bot/kaff.quest)

Check again

kaff.quest Has IPv6

A (IPv4)	172.67.175.121 104.21.17.107
AAAA (IPv6)	2606:4700:3033::ac43:af79 2606:4700:3037::6815:116b

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: kaff.quest
Measured 2026-11-02 02:57:16 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    172.67.175.121, 104.21.17.107
AAAA (IPv6): 2606:4700:3033::ac43:af79, 2606:4700:3037::6815:116b

Readiness grade A: Website, mail and DNS all work over IPv6.
- Website over IPv6: kaff.quest has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3033::ac43:af79: answers (TCP 443)
    2606:4700:3037::6815:116b: answers (TCP 443)
- Mail servers (MX) have IPv6: No MX records, so mail goes to the domain's own address (implicit MX). It 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://kaff.quest/ via 2606:4700:3033::ac43:af79 -> HTTP 302, certificate: valid
    https://lukashoch132535.cloudflareaccess.com/cdn-cgi/access/login/kaff.quest?kid=258aef8f48deda028a328fdcd0ca2955aae5467e1c65f822c712ef1a45c44d6f&meta=eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6Ijg2OGFmMjMzMzMwYTk2ZmFjNTUzMTBhMmQyN2E2MmQ1ZWM1YWY5Zjg3ZDBhOTg5OTNhMzk0MjZlMDg1NGI2NzcifQ.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.lk5lgW5HN1VS3cbnHQUTSNQwHCJsz_sMNBn1HNHngDwEihx-Lh5XtpwVQmXgABmcu1clr6aUoH_vR4T1wlOXG-pbvBss4h2vzbPl_zkSk3Y8g_-3PR_rGi_tb3jRQ12IRINjubQTSJkXSPTGF4SqILSmGQwOYgcVxgPIwB6q-1j9rGybEOSggW9M2K2GUrM0atVCiGXpGK4OIaXoelqDMnE41GZW7MUOjskikLysLxlpgdK1czUuudbD15DP1cIgTU9yADh7cbOMXakobKeDtxodBOIxfrLk813mDufoh1XFL84oNTmr28saarcrrOHn7tkvfjeZL1j_08a5TmvLgA&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/I4z18UHJTl

Permanent link: aaaa.bot/r/I4z18UHJTl · How we measure

Checked 2026-11-02 02:57:16 UTC. Full DNS report: dns.pizza/domain/kaff.quest · JSON: /api/v1/kaff.quest