Yes — fit-track.click has IPv6.

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

IPv6 readiness

Works over IPv6, with one gap: its mail servers lack IPv6.

Website over IPv6 fit-track.click has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3036::ac43:dda9 answers · 443✓ 2606:4700:3034::6815:3339 answers · 443	yes
www over IPv6 www.fit-track.click has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3036::ac43:dda9 answers · 443✓ 2606:4700:3034::6815:3339 answers · 443	yes
Mail servers (MX) have IPv6 None of the mail servers has an AAAA record. eforward1.registrar-servers.com ✗eforward2.registrar-servers.com ✗eforward3.registrar-servers.com ✗eforward4.registrar-servers.com ✗eforward5.registrar-servers.com ✗	no
Nameservers have IPv6 2 of 2 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up. savanna.ns.cloudflare.com ✓weston.ns.cloudflare.com ✓	yes

HTTPS over IPv6 · not part of the grade yet
Answered over IPv6 with a server error (HTTP 530) — can't tell whether that's specific to IPv6.

https://fit-track.click/ via 2606:4700:3036::ac43:dda9 → 530

What's keeping fit-track.click from an A

Mail servers without IPv6
eforward1.registrar-servers.com, eforward2.registrar-servers.com, eforward3.registrar-servers.com, eforward4.registrar-servers.com, eforward5.registrar-servers.com have no AAAA record, so mail from IPv6-only servers can't reach them directly. If a provider runs your mail, that's their setting; if you run it, add AAAA records for these hosts.

Check again

fit-track.click Has IPv6

A (IPv4)	172.67.221.169 104.21.51.57
AAAA (IPv6)	2606:4700:3036::ac43:dda9 2606:4700:3034::6815:3339

www.fit-track.click Has IPv6

A (IPv4)	104.21.51.57 172.67.221.169
AAAA (IPv6)	2606:4700:3036::ac43:dda9 2606:4700:3034::6815:3339

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: fit-track.click
Measured 2026-11-03 02:08:05 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    172.67.221.169, 104.21.51.57
AAAA (IPv6): 2606:4700:3036::ac43:dda9, 2606:4700:3034::6815:3339
www AAAA:    2606:4700:3036::ac43:dda9, 2606:4700:3034::6815:3339

Readiness grade B: Works over IPv6, with one gap: its mail servers lack IPv6.
- Website over IPv6: fit-track.click has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3036::ac43:dda9: answers (TCP 443)
    2606:4700:3034::6815:3339: answers (TCP 443)
- www over IPv6: www.fit-track.click has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3036::ac43:dda9: answers (TCP 443)
    2606:4700:3034::6815:3339: answers (TCP 443)
- Mail servers (MX) have IPv6: None of the mail servers 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): Answered over IPv6 with a server error (HTTP 530) — can't tell whether that's specific to IPv6.
    https://fit-track.click/ via 2606:4700:3036::ac43:dda9 -> HTTP 530, certificate: valid
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/sezG1OJ91h

Permanent link: aaaa.bot/r/sezG1OJ91h · How we measure

Checked 2026-11-03 02:08:05 UTC. Full DNS report: dns.pizza/domain/fit-track.click · Age, certificate and blocklists: how.is/fit-track.click · JSON: /api/v1/fit-track.click