Yes — memecoin.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 memecoin.cool has an AAAA record and answers on it. ✓ 2604:5940:0:335::3d answers · 443	yes
www over IPv6 www.memecoin.cool has an AAAA record and answers on it. ✓ 2604:5940:0:335::3d 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. dns1.registrar-servers.com ✓dns2.registrar-servers.com ✓	yes

HTTPS over IPv6 · not part of the grade yet
Answered over IPv6 with a server error (HTTP 502) — can't tell whether that's specific to IPv6.

https://memecoin.cool/ via 2604:5940:0:335::3d → 502

What's keeping memecoin.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

memecoin.cool Has IPv6

A (IPv4)	38.91.104.60
AAAA (IPv6)	2604:5940:0:335::3d

www.memecoin.cool Has IPv6

A (IPv4)	38.91.104.60
AAAA (IPv6)	2604:5940:0:335::3d

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: memecoin.cool
Measured 2026-11-10 02:04:40 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    38.91.104.60
AAAA (IPv6): 2604:5940:0:335::3d
www AAAA:    2604:5940:0:335::3d

Readiness grade B: Works over IPv6, with one gap: its mail servers lack IPv6.
- Website over IPv6: memecoin.cool has an AAAA record and answers on it.
    2604:5940:0:335::3d: answers (TCP 443)
- www over IPv6: www.memecoin.cool has an AAAA record and answers on it.
    2604:5940:0:335::3d: 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): Answered over IPv6 with a server error (HTTP 502) — can't tell whether that's specific to IPv6.
    https://memecoin.cool/ via 2604:5940:0:335::3d -> HTTP 502, certificate: valid
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/-pMgBZJYoq

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

Checked 2026-11-10 02:04:40 UTC. Full DNS report: dns.pizza/domain/memecoin.cool · Age, certificate and blocklists: how.is/memecoin.cool · JSON: /api/v1/memecoin.cool