Yes — thesquirrel.app has IPv6.

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

IPv6 readiness

Website, mail and DNS all work over IPv6.

Website over IPv6 thesquirrel.app has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3036::6815:5fa9 answers · 443✓ 2606:4700:3035::ac43:9238 answers · 443	yes
www over IPv6 www.thesquirrel.app has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3035::ac43:9238 answers · 443✓ 2606:4700:3036::6815:5fa9 answers · 443	yes
Mail servers (MX) have IPv6 Every mail server has an AAAA record. mx2.hostinger.com ✓mx1.hostinger.com ✓	yes
Nameservers have IPv6 2 of 2 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up. buck.ns.cloudflare.com ✓riya.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://thesquirrel.app/ via 2606:4700:3036::6815:5fa9 → 302https://green-butterfly-159d.cloudflareaccess.com/cdn-cgi/access/login/thesquirrel.app?kid=24cee4ad7a7527322d902f9294a01ec61fbc7874e10b5d8db2024b698cd17673&meta=eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6ImM3YWRjOWE4ZTc3MWMyMTM5OGFkM2M0NWNjMzVhNjNlY2YxODZkNDJmMDE0YjQyODEwOTdlMTA3NWNmMDZjZWQifQ.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.aVh_C-l1-5HbvIUfnMElQwPIx7fMtVDCQS7bUJcxt4ozWOpm8Ds5SCiB_LW9eFJKYqjdE4AiVLLRLcxLvaVJ0livPMBdw2tgQaOagvcc4FrbOrGBfkx3vjc_liSS_QDmfoVc8JVqF2ImHMSXflQmobD_2ZlOT53K00xXxUV0HgAmbfXzH-oy_qdT2q3ryDZ7YM0VZhV8zKaS7eeWl7RDUgpa9TgilpeEr6YvXkwIZuP5CgvLcZXJlZnk4dKwzpf8EZ9aqO2VJ7B0zesAePVnvK0yzVJxtTRfkTwNZK5yrgTgfDm9ncfylXD718iDlk95rIUXKBJ1auruJJappwjzqQ&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/thesquirrel.app.svg)](https://aaaa.bot/thesquirrel.app)

Check again

thesquirrel.app Has IPv6

A (IPv4)	104.21.95.169 172.67.146.56
AAAA (IPv6)	2606:4700:3036::6815:5fa9 2606:4700:3035::ac43:9238

www.thesquirrel.app Has IPv6

A (IPv4)	172.67.146.56 104.21.95.169
AAAA (IPv6)	2606:4700:3035::ac43:9238 2606:4700:3036::6815:5fa9

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: thesquirrel.app
Measured 2026-11-05 23:28:07 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    104.21.95.169, 172.67.146.56
AAAA (IPv6): 2606:4700:3036::6815:5fa9, 2606:4700:3035::ac43:9238
www AAAA:    2606:4700:3035::ac43:9238, 2606:4700:3036::6815:5fa9

Readiness grade A: Website, mail and DNS all work over IPv6.
- Website over IPv6: thesquirrel.app has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3036::6815:5fa9: answers (TCP 443)
    2606:4700:3035::ac43:9238: answers (TCP 443)
- www over IPv6: www.thesquirrel.app has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3035::ac43:9238: answers (TCP 443)
    2606:4700:3036::6815:5fa9: 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://thesquirrel.app/ via 2606:4700:3036::6815:5fa9 -> HTTP 302, certificate: valid
    https://green-butterfly-159d.cloudflareaccess.com/cdn-cgi/access/login/thesquirrel.app?kid=24cee4ad7a7527322d902f9294a01ec61fbc7874e10b5d8db2024b698cd17673&meta=eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6ImM3YWRjOWE4ZTc3MWMyMTM5OGFkM2M0NWNjMzVhNjNlY2YxODZkNDJmMDE0YjQyODEwOTdlMTA3NWNmMDZjZWQifQ.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.aVh_C-l1-5HbvIUfnMElQwPIx7fMtVDCQS7bUJcxt4ozWOpm8Ds5SCiB_LW9eFJKYqjdE4AiVLLRLcxLvaVJ0livPMBdw2tgQaOagvcc4FrbOrGBfkx3vjc_liSS_QDmfoVc8JVqF2ImHMSXflQmobD_2ZlOT53K00xXxUV0HgAmbfXzH-oy_qdT2q3ryDZ7YM0VZhV8zKaS7eeWl7RDUgpa9TgilpeEr6YvXkwIZuP5CgvLcZXJlZnk4dKwzpf8EZ9aqO2VJ7B0zesAePVnvK0yzVJxtTRfkTwNZK5yrgTgfDm9ncfylXD718iDlk95rIUXKBJ1auruJJappwjzqQ&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/dSD3lh-GZ-

Permanent link: aaaa.bot/r/dSD3lh-GZ- · How we measure

Checked 2026-11-05 23:28:07 UTC. Full DNS report: dns.pizza/domain/thesquirrel.app · Age, certificate and blocklists: how.is/thesquirrel.app · JSON: /api/v1/thesquirrel.app