Yes — sharkpulse.dev has IPv6.

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

IPv6 readiness

Website, mail and DNS all work over IPv6.

Website over IPv6 sharkpulse.dev has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3032::6815:393 answers · 443✓ 2606:4700:3035::ac43:82d4 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. abdullah.ns.cloudflare.com ✓chan.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://sharkpulse.dev/ via 2606:4700:3032::6815:393 → 302https://jeffandsons.cloudflareaccess.com/cdn-cgi/access/login/sharkpulse.dev?kid=ffa24d8cd7d42648beb42733824913034eb8f73433af5b9001a9fc6007994a6c&meta=eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6IjkxNDE1MDU3ZTU5MWQ1NjczODU0ZTQwZDkxODhkMWIwOGUyM2FkNWMzYjQwNTc2OGM2OWRjNmI0Y2RkYjY3ZWUifQ.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.ug_CpUD9GZa-qAytvC59c5CNC8CstmMXNZpuxPU6I1CXXcOdfG9xzsSiwHJECvulGTvy73kkQSFSAR9z445Baqv5PadoS1HXV_NfPoosiFYNeS5zTRf9nk3jJc2vpSidxUcViU_u29IBoHVnBwCNHBAsb_jxQkc9a86gD_d5k3tBSICt9n2bkxzj7s3mWhLvxgHOOx-FkzFTr92q1Vyb79wKtaDG1M8W6AnhPaHQiSKeqYyW7lTxdjDZx-IdlkrplcS-tOaHIHTN5hHRRbCPoQyyUvMGbxD3RLtOdlQWRmkZvFcdCgAUUZ0cXgIguucioE02sM-3BRHDh_bQ2yW-CA&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/sharkpulse.dev.svg)](https://aaaa.bot/sharkpulse.dev)

Check again

sharkpulse.dev Has IPv6

A (IPv4)	104.21.3.147 172.67.130.212
AAAA (IPv6)	2606:4700:3032::6815:393 2606:4700:3035::ac43:82d4

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: sharkpulse.dev
Measured 2026-11-04 09:45:04 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    104.21.3.147, 172.67.130.212
AAAA (IPv6): 2606:4700:3032::6815:393, 2606:4700:3035::ac43:82d4

Readiness grade A: Website, mail and DNS all work over IPv6.
- Website over IPv6: sharkpulse.dev has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3032::6815:393: answers (TCP 443)
    2606:4700:3035::ac43:82d4: 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://sharkpulse.dev/ via 2606:4700:3032::6815:393 -> HTTP 302, certificate: valid
    https://jeffandsons.cloudflareaccess.com/cdn-cgi/access/login/sharkpulse.dev?kid=ffa24d8cd7d42648beb42733824913034eb8f73433af5b9001a9fc6007994a6c&meta=eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6IjkxNDE1MDU3ZTU5MWQ1NjczODU0ZTQwZDkxODhkMWIwOGUyM2FkNWMzYjQwNTc2OGM2OWRjNmI0Y2RkYjY3ZWUifQ.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.ug_CpUD9GZa-qAytvC59c5CNC8CstmMXNZpuxPU6I1CXXcOdfG9xzsSiwHJECvulGTvy73kkQSFSAR9z445Baqv5PadoS1HXV_NfPoosiFYNeS5zTRf9nk3jJc2vpSidxUcViU_u29IBoHVnBwCNHBAsb_jxQkc9a86gD_d5k3tBSICt9n2bkxzj7s3mWhLvxgHOOx-FkzFTr92q1Vyb79wKtaDG1M8W6AnhPaHQiSKeqYyW7lTxdjDZx-IdlkrplcS-tOaHIHTN5hHRRbCPoQyyUvMGbxD3RLtOdlQWRmkZvFcdCgAUUZ0cXgIguucioE02sM-3BRHDh_bQ2yW-CA&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/jq7GgC61vl

Permanent link: aaaa.bot/r/jq7GgC61vl · How we measure

Checked 2026-11-04 09:45:04 UTC. Full DNS report: dns.pizza/domain/sharkpulse.dev · Age, certificate and blocklists: how.is/sharkpulse.dev · JSON: /api/v1/sharkpulse.dev