Yes — explorecoding.dev has IPv6.

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

IPv6 readiness

Website, mail and DNS all work over IPv6.

Website over IPv6 explorecoding.dev has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3032::ac43:b067 answers · 443✓ 2606:4700:3031::6815:3821 answers · 443	yes
www over IPv6 www.explorecoding.dev has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3032::ac43:b067 answers · 443✓ 2606:4700:3031::6815:3821 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. dave.ns.cloudflare.com ✓love.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://explorecoding.dev/ via 2606:4700:3032::ac43:b067 → 302https://explorecoding.cloudflareaccess.com/cdn-cgi/access/login/explorecoding.dev?kid=765c03d54453398fac1be8bc4508be6fde35d4cc960b1c2ce70da0c0ba3c2519&meta=eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6IjRlZDIwN2E5ZWE3ZjI2ODUxMzY3MmExMjIzNjFmYjM4NWQ5NzlkYWFlOGRlYzFlZWU4NTVmYzJmMzUzNTdjZDUifQ.eyJ0eXBlIjoibWV0YSIsImF1ZCI6Ijc2NWMwM2Q1NDQ1MzM5OGZhYzFiZThiYzQ1MDhiZTZmZGUzNWQ0Y2M5NjBiMWMyY2U3MGRhMGMwYmEzYzI1MTkiLCJob3N0bmFtZSI6ImV4cGxvcmVjb2RpbmcuZGV2IiwicmVkaXJlY3RfdXJsIjoiLyIsInNlcnZpY2VfdG9rZW5fc3RhdHVzIjpmYWxzZSwiaXNfd2FycCI6ZmFsc2UsImlzX2dhdGV3YXkiOmZhbHNlLCJleHAiOjE3OTM4MjE1MDksIm5iZiI6MTc5MzgyMTIwOSwiaWF0IjoxNzkzODIxMjA5LCJhdXRoX3N0YXR1cyI6Ik5PTkUiLCJtdGxzX2F1dGgiOnsiY2VydF9pc3N1ZXJfZG4iOiIiLCJjZXJ0X3NlcmlhbCI6IiIsImNlcnRfaXNzdWVyX3NraSI6IiIsImNlcnRfcHJlc2VudGVkIjpmYWxzZSwiY29tbW9uX25hbWUiOiIiLCJhdXRoX3N0YXR1cyI6Ik5PTkUifSwicmVhbF9jb3VudHJ5IjoiVVMiLCJhcHBfc2Vzc2lvbl9oYXNoIjoiOTA5YjEyZDg3Zjg4NzliYTc5ODc3MGJlMGNjYzAzY2VmNzZlOWFkM2VjYTIxNGZmNTU2MmUzYzNjMjkxYjlmNSJ9.vRpdaqklqYLIfJFy2_VgNcuC6n413iF_W5hO5VQoIczuSFSjad4ieD34DcNd1qIXfW-_kzpXzfqVjiuEguGYd2C-IV36Wbd6820Hj6pBNbz83fP6i4fJ9GVPRvWQNctxM-2Vn38JHN6RgWJN1pr1fyB_uKcccTaoqbjUIGPQQ3LeKIc4rPlzpPbFVRP-mT-c7Pn4huavXk1VmoNCWJpzfJtSAYyJGEies4-o0-vEDs9FCi6z4xYlRvpWYNysB5nKkqcRGQOp29jxWekorZN6UwPSptqu11fO8QKvGTPEznUnUQD-od-w57qZ-caDAdF_CSbZhM4iq8hN-Dd0un4i8A&redirect_url=%2F via 2606:4700:300a::6813:c31d → 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/explorecoding.dev.svg)](https://aaaa.bot/explorecoding.dev)

Check again

explorecoding.dev Has IPv6

A (IPv4)	172.67.176.103 104.21.56.33
AAAA (IPv6)	2606:4700:3032::ac43:b067 2606:4700:3031::6815:3821

www.explorecoding.dev Has IPv6

A (IPv4)	172.67.176.103 104.21.56.33
AAAA (IPv6)	2606:4700:3032::ac43:b067 2606:4700:3031::6815:3821

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: explorecoding.dev
Measured 2026-11-04 19:40:09 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    172.67.176.103, 104.21.56.33
AAAA (IPv6): 2606:4700:3032::ac43:b067, 2606:4700:3031::6815:3821
www AAAA:    2606:4700:3032::ac43:b067, 2606:4700:3031::6815:3821

Readiness grade A: Website, mail and DNS all work over IPv6.
- Website over IPv6: explorecoding.dev has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3032::ac43:b067: answers (TCP 443)
    2606:4700:3031::6815:3821: answers (TCP 443)
- www over IPv6: www.explorecoding.dev has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3032::ac43:b067: answers (TCP 443)
    2606:4700:3031::6815:3821: 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://explorecoding.dev/ via 2606:4700:3032::ac43:b067 -> HTTP 302, certificate: valid
    https://explorecoding.cloudflareaccess.com/cdn-cgi/access/login/explorecoding.dev?kid=765c03d54453398fac1be8bc4508be6fde35d4cc960b1c2ce70da0c0ba3c2519&meta=eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6IjRlZDIwN2E5ZWE3ZjI2ODUxMzY3MmExMjIzNjFmYjM4NWQ5NzlkYWFlOGRlYzFlZWU4NTVmYzJmMzUzNTdjZDUifQ.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.vRpdaqklqYLIfJFy2_VgNcuC6n413iF_W5hO5VQoIczuSFSjad4ieD34DcNd1qIXfW-_kzpXzfqVjiuEguGYd2C-IV36Wbd6820Hj6pBNbz83fP6i4fJ9GVPRvWQNctxM-2Vn38JHN6RgWJN1pr1fyB_uKcccTaoqbjUIGPQQ3LeKIc4rPlzpPbFVRP-mT-c7Pn4huavXk1VmoNCWJpzfJtSAYyJGEies4-o0-vEDs9FCi6z4xYlRvpWYNysB5nKkqcRGQOp29jxWekorZN6UwPSptqu11fO8QKvGTPEznUnUQD-od-w57qZ-caDAdF_CSbZhM4iq8hN-Dd0un4i8A&redirect_url=%2F via 2606:4700:300a::6813:c31d -> HTTP 200, certificate: valid
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/JLOc5prEOO

Permanent link: aaaa.bot/r/JLOc5prEOO · How we measure

Checked 2026-11-04 19:40:09 UTC. Full DNS report: dns.pizza/domain/explorecoding.dev · Age, certificate and blocklists: how.is/explorecoding.dev · JSON: /api/v1/explorecoding.dev