Yes — stfmpp.com has IPv6.

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

IPv6 readiness

Website, mail and DNS all work over IPv6.

Website over IPv6 stfmpp.com has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3037::6815:54b2 answers · 443✓ 2606:4700:3033::ac43:c374 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. kimora.ns.cloudflare.com ✓kyrie.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://stfmpp.com/ via 2606:4700:3037::6815:54b2 → 302https://plain-darkness-2949.cloudflareaccess.com/cdn-cgi/access/login/stfmpp.com?kid=42932f7b13bc4ee7b575068cb78217c5cfbabc194e916e669c15f0d030f45b42&meta=eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6Ijg2OGFmMjMzMzMwYTk2ZmFjNTUzMTBhMmQyN2E2MmQ1ZWM1YWY5Zjg3ZDBhOTg5OTNhMzk0MjZlMDg1NGI2NzcifQ.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.HivQ0kmjEUq1eallN67x7vtB0k-sBY3h11rwX2VLlZU3ff1ukC-KA6LVbvF9311NktZZh25OEj-BdqT6_YOatmfJo6-FmkoZZzNBmwLc6RP44nkmA2z7NGZPNaGKNRHKsuGUAhQdYy-ewyxSngDFC2q25vqZQNDSvdBtv_yk47m9etuO8n9vApTKrQwzNV0HUbbmCgQUPkoWoTBcVkMfaGaIpLtjRqgnDATUMQlvx0b0Kt7UNjnxKKQ2GWDFElUJx4CMy9xBa7uoIeFgErIlzpWjo5rmnzz6q34bgw4cuxWHY_7V64YB40ve-fVIxnHexCPCiu-wQ9SXM7NS16zJzw&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/stfmpp.com.svg)](https://aaaa.bot/stfmpp.com)

Check again

stfmpp.com Has IPv6

A (IPv4)	104.21.84.178 172.67.195.116
AAAA (IPv6)	2606:4700:3037::6815:54b2 2606:4700:3033::ac43:c374

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: stfmpp.com
Measured 2026-11-04 19:40:39 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    104.21.84.178, 172.67.195.116
AAAA (IPv6): 2606:4700:3037::6815:54b2, 2606:4700:3033::ac43:c374

Readiness grade A: Website, mail and DNS all work over IPv6.
- Website over IPv6: stfmpp.com has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3037::6815:54b2: answers (TCP 443)
    2606:4700:3033::ac43:c374: 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://stfmpp.com/ via 2606:4700:3037::6815:54b2 -> HTTP 302, certificate: valid
    https://plain-darkness-2949.cloudflareaccess.com/cdn-cgi/access/login/stfmpp.com?kid=42932f7b13bc4ee7b575068cb78217c5cfbabc194e916e669c15f0d030f45b42&meta=eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6Ijg2OGFmMjMzMzMwYTk2ZmFjNTUzMTBhMmQyN2E2MmQ1ZWM1YWY5Zjg3ZDBhOTg5OTNhMzk0MjZlMDg1NGI2NzcifQ.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.HivQ0kmjEUq1eallN67x7vtB0k-sBY3h11rwX2VLlZU3ff1ukC-KA6LVbvF9311NktZZh25OEj-BdqT6_YOatmfJo6-FmkoZZzNBmwLc6RP44nkmA2z7NGZPNaGKNRHKsuGUAhQdYy-ewyxSngDFC2q25vqZQNDSvdBtv_yk47m9etuO8n9vApTKrQwzNV0HUbbmCgQUPkoWoTBcVkMfaGaIpLtjRqgnDATUMQlvx0b0Kt7UNjnxKKQ2GWDFElUJx4CMy9xBa7uoIeFgErIlzpWjo5rmnzz6q34bgw4cuxWHY_7V64YB40ve-fVIxnHexCPCiu-wQ9SXM7NS16zJzw&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/tR6GWoMujo

Permanent link: aaaa.bot/r/tR6GWoMujo · How we measure

Checked 2026-11-04 19:40:39 UTC. Full DNS report: dns.pizza/domain/stfmpp.com · Age, certificate and blocklists: how.is/stfmpp.com · JSON: /api/v1/stfmpp.com