Yes — landira.app has IPv6.

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

IPv6 readiness

Website, mail and DNS all work over IPv6.

Website over IPv6 landira.app has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3030::ac43:a27d answers · 443✓ 2606:4700:3030::6815:294e answers · 443	yes
www over IPv6 www.landira.app has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3030::ac43:a27d answers · 443✓ 2606:4700:3030::6815:294e 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. carlos.ns.cloudflare.com ✓laura.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://landira.app/ via 2606:4700:3030::ac43:a27d → 302https://royal-dust-a911.cloudflareaccess.com/cdn-cgi/access/login/landira.app?kid=5633b47b850c7d20f6970d9fb70bd486c5a697bc50923d9e53cdbbfac8c718f3&meta=eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6Ijg2OGFmMjMzMzMwYTk2ZmFjNTUzMTBhMmQyN2E2MmQ1ZWM1YWY5Zjg3ZDBhOTg5OTNhMzk0MjZlMDg1NGI2NzcifQ.eyJ0eXBlIjoibWV0YSIsImF1ZCI6IjU2MzNiNDdiODUwYzdkMjBmNjk3MGQ5ZmI3MGJkNDg2YzVhNjk3YmM1MDkyM2Q5ZTUzY2RiYmZhYzhjNzE4ZjMiLCJob3N0bmFtZSI6ImxhbmRpcmEuYXBwIiwicmVkaXJlY3RfdXJsIjoiLyIsInNlcnZpY2VfdG9rZW5fc3RhdHVzIjpmYWxzZSwiaXNfd2FycCI6ZmFsc2UsImlzX2dhdGV3YXkiOmZhbHNlLCJleHAiOjE3OTQzOTA5NDEsIm5iZiI6MTc5NDM5MDY0MSwiaWF0IjoxNzk0MzkwNjQxLCJhdXRoX3N0YXR1cyI6Ik5PTkUiLCJtdGxzX2F1dGgiOnsiY2VydF9pc3N1ZXJfZG4iOiIiLCJjZXJ0X3NlcmlhbCI6IiIsImNlcnRfaXNzdWVyX3NraSI6IiIsImNlcnRfcHJlc2VudGVkIjpmYWxzZSwiY29tbW9uX25hbWUiOiIiLCJhdXRoX3N0YXR1cyI6Ik5PTkUifSwicmVhbF9jb3VudHJ5IjoiVVMiLCJhcHBfc2Vzc2lvbl9oYXNoIjoiMDExMzRhZDI3NTIyNmFkOWNkZDg2NzY2NDVhYzMwZGQzNGM3NGQzNDFkNWYwY2EzZjVlODAwZTUyZDYzMWE1MyJ9.CSJsfBehohX2ecKYVuq_CFQbd9McOh2HyR7sZUFIlJ6nasBCuHBp843Z2eH0GKllGLFtdfwinR6KhmMW4xCNfa26wbmvLMRqH6MVmOYvV9CeKmvz2mkSqjiJWtXEuqxRtUMaeAeoVxO2We6PLcprz8WvawBmJNEoGTSSafYUZQds1eLt32sl6s2fXIcSk154XER-lbz7ah--M_VloiRgNngKB6Ip2-zpPRLxwkoABC8FbLIsM7nLOJfXtAUvdfOEDnFnCgm_4LLavoaVOrkZXSbbL83YFbRzx6fxSs9RxYY29kVOkiJbNBt4nwWDblAJBgpYxa5wim5BMf7YBWk6ag&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/landira.app.svg)](https://aaaa.bot/landira.app)

Check again

landira.app Has IPv6

A (IPv4)	172.67.162.125 104.21.41.78
AAAA (IPv6)	2606:4700:3030::ac43:a27d 2606:4700:3030::6815:294e

www.landira.app Has IPv6

A (IPv4)	104.21.41.78 172.67.162.125
AAAA (IPv6)	2606:4700:3030::ac43:a27d 2606:4700:3030::6815:294e

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: landira.app
Measured 2026-11-11 09:50:41 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    172.67.162.125, 104.21.41.78
AAAA (IPv6): 2606:4700:3030::ac43:a27d, 2606:4700:3030::6815:294e
www AAAA:    2606:4700:3030::ac43:a27d, 2606:4700:3030::6815:294e

Readiness grade A: Website, mail and DNS all work over IPv6.
- Website over IPv6: landira.app has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3030::ac43:a27d: answers (TCP 443)
    2606:4700:3030::6815:294e: answers (TCP 443)
- www over IPv6: www.landira.app has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3030::ac43:a27d: answers (TCP 443)
    2606:4700:3030::6815:294e: 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 after 1 redirect: HTTP 200.
    https://landira.app/ via 2606:4700:3030::ac43:a27d -> HTTP 302, certificate: valid
    https://royal-dust-a911.cloudflareaccess.com/cdn-cgi/access/login/landira.app?kid=5633b47b850c7d20f6970d9fb70bd486c5a697bc50923d9e53cdbbfac8c718f3&meta=eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6Ijg2OGFmMjMzMzMwYTk2ZmFjNTUzMTBhMmQyN2E2MmQ1ZWM1YWY5Zjg3ZDBhOTg5OTNhMzk0MjZlMDg1NGI2NzcifQ.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.CSJsfBehohX2ecKYVuq_CFQbd9McOh2HyR7sZUFIlJ6nasBCuHBp843Z2eH0GKllGLFtdfwinR6KhmMW4xCNfa26wbmvLMRqH6MVmOYvV9CeKmvz2mkSqjiJWtXEuqxRtUMaeAeoVxO2We6PLcprz8WvawBmJNEoGTSSafYUZQds1eLt32sl6s2fXIcSk154XER-lbz7ah--M_VloiRgNngKB6Ip2-zpPRLxwkoABC8FbLIsM7nLOJfXtAUvdfOEDnFnCgm_4LLavoaVOrkZXSbbL83YFbRzx6fxSs9RxYY29kVOkiJbNBt4nwWDblAJBgpYxa5wim5BMf7YBWk6ag&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/K0G3vUZ6qC

Permanent link: aaaa.bot/r/K0G3vUZ6qC · How we measure

Checked 2026-11-11 09:50:41 UTC. Full DNS report: dns.pizza/domain/landira.app · Age, certificate and blocklists: how.is/landira.app · JSON: /api/v1/landira.app