Yes — fothergillbros.dev has IPv6.

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

IPv6 readiness

Website, mail and DNS all work over IPv6.

Website over IPv6 fothergillbros.dev has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3037::ac43:abb1 answers · 443✓ 2606:4700:3031::6815:2fac 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. sofia.ns.cloudflare.com ✓zahir.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://fothergillbros.dev/ via 2606:4700:3037::ac43:abb1 → 302https://fothergill-bros.cloudflareaccess.com/cdn-cgi/access/login/fothergillbros.dev?kid=b26d202c92a815a1ca2ce66667e145ea6c5fd0da7f035e3f7f665acca6f529cc&meta=eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6Ijg2OGFmMjMzMzMwYTk2ZmFjNTUzMTBhMmQyN2E2MmQ1ZWM1YWY5Zjg3ZDBhOTg5OTNhMzk0MjZlMDg1NGI2NzcifQ.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.cBshzjpgYQP2g_nF4ceI5QuMD8qWHT4w3l3evU3itsQb4ZCHi-5E03CMAToWZpW5A1z9L2sMjWZqQHbjF3hBlUWNBnnQ9YtqX5vrpvEmwsZsJnUP_CPDASJH3nOSFyutQVKVxcxBUecqNLeah1GlRhL3_7uEOxm8805gk4qgXMgsv42r42FUMsaNkWiwzigxNr7Nz-S5-ciDpWfkBMytkJ3RhWPGdU5XEujnx6TrZwwyfcg_QHFm9zjRYu-TXoTdJJKi2uwvvRCk8ywsqEch0Ag4XZpsnhv0Nog0LaBnhWyu0elnSn5H7q__TeVqg-D_HpUhiyK6SlE4xPtfhGm46g&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/fothergillbros.dev.svg)](https://aaaa.bot/fothergillbros.dev)

Check again

fothergillbros.dev Has IPv6

A (IPv4)	172.67.171.177 104.21.47.172
AAAA (IPv6)	2606:4700:3037::ac43:abb1 2606:4700:3031::6815:2fac

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: fothergillbros.dev
Measured 2026-11-10 09:10:26 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    172.67.171.177, 104.21.47.172
AAAA (IPv6): 2606:4700:3037::ac43:abb1, 2606:4700:3031::6815:2fac

Readiness grade A: Website, mail and DNS all work over IPv6.
- Website over IPv6: fothergillbros.dev has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3037::ac43:abb1: answers (TCP 443)
    2606:4700:3031::6815:2fac: 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://fothergillbros.dev/ via 2606:4700:3037::ac43:abb1 -> HTTP 302, certificate: valid
    https://fothergill-bros.cloudflareaccess.com/cdn-cgi/access/login/fothergillbros.dev?kid=b26d202c92a815a1ca2ce66667e145ea6c5fd0da7f035e3f7f665acca6f529cc&meta=eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6Ijg2OGFmMjMzMzMwYTk2ZmFjNTUzMTBhMmQyN2E2MmQ1ZWM1YWY5Zjg3ZDBhOTg5OTNhMzk0MjZlMDg1NGI2NzcifQ.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.cBshzjpgYQP2g_nF4ceI5QuMD8qWHT4w3l3evU3itsQb4ZCHi-5E03CMAToWZpW5A1z9L2sMjWZqQHbjF3hBlUWNBnnQ9YtqX5vrpvEmwsZsJnUP_CPDASJH3nOSFyutQVKVxcxBUecqNLeah1GlRhL3_7uEOxm8805gk4qgXMgsv42r42FUMsaNkWiwzigxNr7Nz-S5-ciDpWfkBMytkJ3RhWPGdU5XEujnx6TrZwwyfcg_QHFm9zjRYu-TXoTdJJKi2uwvvRCk8ywsqEch0Ag4XZpsnhv0Nog0LaBnhWyu0elnSn5H7q__TeVqg-D_HpUhiyK6SlE4xPtfhGm46g&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/k75B2uJAFO

Permanent link: aaaa.bot/r/k75B2uJAFO · How we measure

Checked 2026-11-10 09:10:26 UTC. Full DNS report: dns.pizza/domain/fothergillbros.dev · Age, certificate and blocklists: how.is/fothergillbros.dev · JSON: /api/v1/fothergillbros.dev