Yes — rowsmith.app has IPv6.

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

IPv6 readiness

Website, mail and DNS all work over IPv6.

Website over IPv6 rowsmith.app has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3032::6815:2c7a answers · 443✓ 2606:4700:3036::ac43:c796 answers · 443	yes
www over IPv6 www.rowsmith.app has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3036::ac43:c796 answers · 443✓ 2606:4700:3032::6815:2c7a answers · 443	yes
Mail servers (MX) have IPv6 Every mail server has an AAAA record. route3.mx.cloudflare.net ✓route2.mx.cloudflare.net ✓route1.mx.cloudflare.net ✓	yes
Nameservers have IPv6 2 of 2 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up. brodie.ns.cloudflare.com ✓fiona.ns.cloudflare.com ✓	yes

HTTPS over IPv6 · not part of the grade yet
Loads over IPv6 with a valid certificate: HTTP 200.

https://rowsmith.app/ via 2606:4700:3032::6815:2c7a → 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/rowsmith.app.svg)](https://aaaa.bot/rowsmith.app)

Check again

rowsmith.app Has IPv6

A (IPv4)	172.67.199.150 104.21.44.122
AAAA (IPv6)	2606:4700:3032::6815:2c7a 2606:4700:3036::ac43:c796

www.rowsmith.app Has IPv6

A (IPv4)	104.21.44.122 172.67.199.150
AAAA (IPv6)	2606:4700:3036::ac43:c796 2606:4700:3032::6815:2c7a

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: rowsmith.app
Measured 2026-11-04 19:40:44 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    172.67.199.150, 104.21.44.122
AAAA (IPv6): 2606:4700:3032::6815:2c7a, 2606:4700:3036::ac43:c796
www AAAA:    2606:4700:3036::ac43:c796, 2606:4700:3032::6815:2c7a

Readiness grade A: Website, mail and DNS all work over IPv6.
- Website over IPv6: rowsmith.app has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3032::6815:2c7a: answers (TCP 443)
    2606:4700:3036::ac43:c796: answers (TCP 443)
- www over IPv6: www.rowsmith.app has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3036::ac43:c796: answers (TCP 443)
    2606:4700:3032::6815:2c7a: 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): Loads over IPv6 with a valid certificate: HTTP 200.
    https://rowsmith.app/ via 2606:4700:3032::6815:2c7a -> HTTP 200, certificate: valid
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/QMY-zACn_2

Permanent link: aaaa.bot/r/QMY-zACn_2 · How we measure

Checked 2026-11-04 19:40:44 UTC. Full DNS report: dns.pizza/domain/rowsmith.app · Age, certificate and blocklists: how.is/rowsmith.app · JSON: /api/v1/rowsmith.app