Yes — supervecco.cool has IPv6.

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

IPv6 readiness

Works over IPv6, with one gap: its mail servers lack IPv6.

Website over IPv6 supervecco.cool has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3035::ac43:bad2 answers · 443✓ 2606:4700:3032::6815:58cb answers · 443	yes
Mail servers (MX) have IPv6 None of the mail servers has an AAAA record. eforward1.registrar-servers.com ✗eforward2.registrar-servers.com ✗eforward3.registrar-servers.com ✗eforward4.registrar-servers.com ✗eforward5.registrar-servers.com ✗	no
Nameservers have IPv6 2 of 2 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up. khloe.ns.cloudflare.com ✓sonny.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://supervecco.cool/ via 2606:4700:3035::ac43:bad2 → 302https://assay-nexus.cloudflareaccess.com/cdn-cgi/access/login/supervecco.cool?kid=a7e12ff1e72c0e190be2f251ef88ca9bb495e27cb41b35b3f471f2fc55459528&meta=eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6IjNmNjFjNTQ0M2RhYjk5ZmE2OTU1N2VhNGE0YTI3NjhiNWI0NWY1ZmMyM2YwN2EwOWQzNTNhMGRhOTdjNTlhMTcifQ.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.Rg_wbDIK4OxyUvyCLTX3k3H-7nUBqwIX_3QNVxa2rGC-kRDp5hk5UwskPb_9KOW2iLVcgcVN1szbtf_i7hqqSd91l4sjRUIrKBGtUzVlOaynrooeG-IENvdds0jvLpOpYgzBctI7yPlK3XRNNj6xoU5meMSHmugwT2tLXolZUaT6AvOczQK8n7vyccYO_7heMBjOh24m-JCIQckST75laEIrdylmYb04YYMWf8d66-Cz592OwlQcjg69CGUbODNr_9XaSArhT-4QSg6rDB1hTXNjRqcQq8gULu_dIg6yzxRVjL81dEL2GVA90BKb7AKuZN2IMjkoHtj2X1Y-vLl28g&redirect_url=%2F via 2606:4700:300a::6813:c31d → 200

works

What's keeping supervecco.cool from an A

Mail servers without IPv6
eforward1.registrar-servers.com, eforward2.registrar-servers.com, eforward3.registrar-servers.com, eforward4.registrar-servers.com, eforward5.registrar-servers.com have no AAAA record, so mail from IPv6-only servers can't reach them directly. If a provider runs your mail, that's their setting; if you run it, add AAAA records for these hosts.

Check again

supervecco.cool Has IPv6

A (IPv4)	104.21.88.203 172.67.186.210
AAAA (IPv6)	2606:4700:3035::ac43:bad2 2606:4700:3032::6815:58cb

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: supervecco.cool
Measured 2026-11-10 11:18:04 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    104.21.88.203, 172.67.186.210
AAAA (IPv6): 2606:4700:3035::ac43:bad2, 2606:4700:3032::6815:58cb

Readiness grade B: Works over IPv6, with one gap: its mail servers lack IPv6.
- Website over IPv6: supervecco.cool has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3035::ac43:bad2: answers (TCP 443)
    2606:4700:3032::6815:58cb: answers (TCP 443)
- Mail servers (MX) have IPv6: None of the mail servers 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://supervecco.cool/ via 2606:4700:3035::ac43:bad2 -> HTTP 302, certificate: valid
    https://assay-nexus.cloudflareaccess.com/cdn-cgi/access/login/supervecco.cool?kid=a7e12ff1e72c0e190be2f251ef88ca9bb495e27cb41b35b3f471f2fc55459528&meta=eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6IjNmNjFjNTQ0M2RhYjk5ZmE2OTU1N2VhNGE0YTI3NjhiNWI0NWY1ZmMyM2YwN2EwOWQzNTNhMGRhOTdjNTlhMTcifQ.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.Rg_wbDIK4OxyUvyCLTX3k3H-7nUBqwIX_3QNVxa2rGC-kRDp5hk5UwskPb_9KOW2iLVcgcVN1szbtf_i7hqqSd91l4sjRUIrKBGtUzVlOaynrooeG-IENvdds0jvLpOpYgzBctI7yPlK3XRNNj6xoU5meMSHmugwT2tLXolZUaT6AvOczQK8n7vyccYO_7heMBjOh24m-JCIQckST75laEIrdylmYb04YYMWf8d66-Cz592OwlQcjg69CGUbODNr_9XaSArhT-4QSg6rDB1hTXNjRqcQq8gULu_dIg6yzxRVjL81dEL2GVA90BKb7AKuZN2IMjkoHtj2X1Y-vLl28g&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/uvCq6f-6Yc

Permanent link: aaaa.bot/r/uvCq6f-6Yc · How we measure

Checked 2026-11-10 11:18:04 UTC. Full DNS report: dns.pizza/domain/supervecco.cool · Age, certificate and blocklists: how.is/supervecco.cool · JSON: /api/v1/supervecco.cool