Yes — simplyprint.dev has IPv6.

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

IPv6 readiness

Website, mail and DNS all work over IPv6.

Website over IPv6 simplyprint.dev has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3030::ac43:b2a1 answers · 443✓ 2606:4700:3033::6815:11e3 answers · 443	yes
www over IPv6 www.simplyprint.dev has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3030::ac43:b2a1 answers · 443✓ 2606:4700:3033::6815:11e3 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. chris.ns.cloudflare.com ✓selah.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://simplyprint.dev/ via 2606:4700:3030::ac43:b2a1 → 302https://simplyprint.cloudflareaccess.com/cdn-cgi/access/login/simplyprint.dev?kid=3318b59743b8659597be0e555400e7532ad18b6f2525c72e04183f553b5097f7&meta=eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6IjQwYjMzNmRkNDRlMTE5MmNkMDM1NGFiZTE2NWUzOWU2NGFlMzczYWVhNzE0ZDNkNzUzMDJjM2MzOGU1MzMyOTIifQ.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.pnJ15lyxJq2yzgmtM68ljMwIsMRAa4i7tZqH942Z0UEea93OLUvnCXH9e8w05vXNkxxWy50f_1KJ8D_nExjXET1lohNVAIvIM-KCSqlwy1kWMHx3L5Jcnb22yptiaD9o6GnAaGmEfPeuP4tfC3dqtOazIDeP4v7KyrpcUGiM5a9FkH4UwH-8DoCVhU62JK7ks5BtFoinf7d0-xD9QrNtauMvvnQnYaGMnvTp0NzRvX5RXzZco2hodY6SzTAqMc89zF1Cbf0NzQ4mGdEkSLZKP59uzk0mFSnKPuTmfLslItKec-KWiqN04wTYYh3rSn5-bO1YSVtm7y7WVw4fkDw1iQ&redirect_url=%2F via 2606:4700:300a::6813:c21d → 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/simplyprint.dev.svg)](https://aaaa.bot/simplyprint.dev)

Check again

simplyprint.dev Has IPv6

A (IPv4)	104.21.17.227 172.67.178.161
AAAA (IPv6)	2606:4700:3030::ac43:b2a1 2606:4700:3033::6815:11e3

www.simplyprint.dev Has IPv6

A (IPv4)	172.67.178.161 104.21.17.227
AAAA (IPv6)	2606:4700:3030::ac43:b2a1 2606:4700:3033::6815:11e3

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: simplyprint.dev
Measured 2026-11-06 03:04:48 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    104.21.17.227, 172.67.178.161
AAAA (IPv6): 2606:4700:3030::ac43:b2a1, 2606:4700:3033::6815:11e3
www AAAA:    2606:4700:3030::ac43:b2a1, 2606:4700:3033::6815:11e3

Readiness grade A: Website, mail and DNS all work over IPv6.
- Website over IPv6: simplyprint.dev has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3030::ac43:b2a1: answers (TCP 443)
    2606:4700:3033::6815:11e3: answers (TCP 443)
- www over IPv6: www.simplyprint.dev has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3030::ac43:b2a1: answers (TCP 443)
    2606:4700:3033::6815:11e3: 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://simplyprint.dev/ via 2606:4700:3030::ac43:b2a1 -> HTTP 302, certificate: valid
    https://simplyprint.cloudflareaccess.com/cdn-cgi/access/login/simplyprint.dev?kid=3318b59743b8659597be0e555400e7532ad18b6f2525c72e04183f553b5097f7&meta=eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6IjQwYjMzNmRkNDRlMTE5MmNkMDM1NGFiZTE2NWUzOWU2NGFlMzczYWVhNzE0ZDNkNzUzMDJjM2MzOGU1MzMyOTIifQ.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.pnJ15lyxJq2yzgmtM68ljMwIsMRAa4i7tZqH942Z0UEea93OLUvnCXH9e8w05vXNkxxWy50f_1KJ8D_nExjXET1lohNVAIvIM-KCSqlwy1kWMHx3L5Jcnb22yptiaD9o6GnAaGmEfPeuP4tfC3dqtOazIDeP4v7KyrpcUGiM5a9FkH4UwH-8DoCVhU62JK7ks5BtFoinf7d0-xD9QrNtauMvvnQnYaGMnvTp0NzRvX5RXzZco2hodY6SzTAqMc89zF1Cbf0NzQ4mGdEkSLZKP59uzk0mFSnKPuTmfLslItKec-KWiqN04wTYYh3rSn5-bO1YSVtm7y7WVw4fkDw1iQ&redirect_url=%2F via 2606:4700:300a::6813:c21d -> HTTP 200, certificate: valid
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/zgVcQFFu3O

Permanent link: aaaa.bot/r/zgVcQFFu3O · How we measure

Checked 2026-11-06 03:04:48 UTC. Full DNS report: dns.pizza/domain/simplyprint.dev · Age, certificate and blocklists: how.is/simplyprint.dev · JSON: /api/v1/simplyprint.dev