Yes — capacitytracking.info has IPv6.

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

IPv6 readiness

Website, mail and DNS all work over IPv6.

Website over IPv6 capacitytracking.info has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3037::6815:6aa answers · 443✓ 2606:4700:3032::ac43:870d answers · 443	yes
www over IPv6 www.capacitytracking.info has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3032::ac43:870d answers · 443✓ 2606:4700:3037::6815:6aa answers · 443	yes
Mail servers (MX) have IPv6 Every mail server has an AAAA record. smtp.google.com ✓	yes
Nameservers have IPv6 2 of 2 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up. lovisa.ns.cloudflare.com ✓sterling.ns.cloudflare.com ✓	yes

HTTPS over IPv6 · not part of the grade yet
capacitytracking.info didn't complete an HTTPS request over IPv6 (timed out).

https://capacitytracking.info/ via 2606:4700:3037::6815:6aa · timed out

Nothing keeping you from an A

Nothing to fix
Show it off: add the badge to your README.
[![IPv6](https://aaaa.bot/badge/capacitytracking.info.svg)](https://aaaa.bot/capacitytracking.info)

Check again

capacitytracking.info Has IPv6

A (IPv4)	104.21.6.170 172.67.135.13
AAAA (IPv6)	2606:4700:3037::6815:6aa 2606:4700:3032::ac43:870d

www.capacitytracking.info Has IPv6

A (IPv4)	172.67.135.13 104.21.6.170
AAAA (IPv6)	2606:4700:3032::ac43:870d 2606:4700:3037::6815:6aa

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: capacitytracking.info
Measured 2026-11-08 01:26:51 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    104.21.6.170, 172.67.135.13
AAAA (IPv6): 2606:4700:3037::6815:6aa, 2606:4700:3032::ac43:870d
www AAAA:    2606:4700:3032::ac43:870d, 2606:4700:3037::6815:6aa

Readiness grade A: Website, mail and DNS all work over IPv6.
- Website over IPv6: capacitytracking.info has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3037::6815:6aa: answers (TCP 443)
    2606:4700:3032::ac43:870d: answers (TCP 443)
- www over IPv6: www.capacitytracking.info has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3032::ac43:870d: answers (TCP 443)
    2606:4700:3037::6815:6aa: 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): capacitytracking.info didn't complete an HTTPS request over IPv6 (timed out).
    https://capacitytracking.info/ via 2606:4700:3037::6815:6aa, certificate: valid (timed out)
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/b0fQhxWx0i

Permanent link: aaaa.bot/r/b0fQhxWx0i · How we measure

Checked 2026-11-08 01:26:51 UTC. Full DNS report: dns.pizza/domain/capacitytracking.info · Age, certificate and blocklists: how.is/capacitytracking.info · JSON: /api/v1/capacitytracking.info