Yes — supportmetamaskverification.com 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 supportmetamaskverification.com has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3035::6815:1e73 answers · 443✓ 2606:4700:3036::ac43:ace0 answers · 443	yes
www over IPv6 www.supportmetamaskverification.com has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3035::6815:1e73 answers · 443✓ 2606:4700:3036::ac43:ace0 answers · 443	yes
Mail servers (MX) have IPv6 None of the mail servers has an AAAA record. _dc-mx.33e38de525d1.supportmetamaskverification.com ✗	no
Nameservers have IPv6 2 of 2 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up. amanda.ns.cloudflare.com ✓marvin.ns.cloudflare.com ✓	yes

HTTPS over IPv6 · not part of the grade yet
Loads over IPv6 with a valid certificate: HTTP 403.

https://supportmetamaskverification.com/ via 2606:4700:3035::6815:1e73 → 403

works

What's keeping supportmetamaskverification.com from an A

Mail servers without IPv6
_dc-mx.33e38de525d1.supportmetamaskverification.com has no AAAA record, so mail from IPv6-only servers can't reach it directly. If a provider runs your mail, that's their setting; if you run it, add AAAA records for these hosts.

Check again

supportmetamaskverification.com Has IPv6

A (IPv4)	104.21.30.115 172.67.172.224
AAAA (IPv6)	2606:4700:3035::6815:1e73 2606:4700:3036::ac43:ace0

www.supportmetamaskverification.com Has IPv6

A (IPv4)	104.21.30.115 172.67.172.224
AAAA (IPv6)	2606:4700:3035::6815:1e73 2606:4700:3036::ac43:ace0

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: supportmetamaskverification.com
Measured 2026-11-11 01:23:34 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    104.21.30.115, 172.67.172.224
AAAA (IPv6): 2606:4700:3035::6815:1e73, 2606:4700:3036::ac43:ace0
www AAAA:    2606:4700:3035::6815:1e73, 2606:4700:3036::ac43:ace0

Readiness grade B: Works over IPv6, with one gap: its mail servers lack IPv6.
- Website over IPv6: supportmetamaskverification.com has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3035::6815:1e73: answers (TCP 443)
    2606:4700:3036::ac43:ace0: answers (TCP 443)
- www over IPv6: www.supportmetamaskverification.com has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3035::6815:1e73: answers (TCP 443)
    2606:4700:3036::ac43:ace0: 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: HTTP 403.
    https://supportmetamaskverification.com/ via 2606:4700:3035::6815:1e73 -> HTTP 403, certificate: valid
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/DoEa2_QTD0

Permanent link: aaaa.bot/r/DoEa2_QTD0 · How we measure

Checked 2026-11-11 01:23:34 UTC. Full DNS report: dns.pizza/domain/supportmetamaskverification.com · Age, certificate and blocklists: how.is/supportmetamaskverification.com · JSON: /api/v1/supportmetamaskverification.com