Yes — hugedomains.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 hugedomains.com has 3 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:20::681a:725 answers · 443✓ 2606:4700:20::681a:625 answers · 443✓ 2606:4700:20::ac43:46bf answers · 443	yes
www over IPv6 www.hugedomains.com has 3 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:20::681a:625 answers · 443✓ 2606:4700:20::681a:725 answers · 443✓ 2606:4700:20::ac43:46bf answers · 443	yes
Mail servers (MX) have IPv6 None of the mail servers has an AAAA record. mx1.emailsrvr.com ✗mx2.emailsrvr.com ✗	no
Nameservers have IPv6 2 of 2 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up. chuck.ns.cloudflare.com ✓jasmine.ns.cloudflare.com ✓	yes

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

https://hugedomains.com/ via 2606:4700:20::681a:725 → 403

works

What's keeping hugedomains.com from an A

Mail servers without IPv6
mx1.emailsrvr.com, mx2.emailsrvr.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

hugedomains.com Has IPv6

A (IPv4)	104.26.6.37 104.26.7.37 172.67.70.191
AAAA (IPv6)	2606:4700:20::681a:725 2606:4700:20::681a:625 2606:4700:20::ac43:46bf

www.hugedomains.com Has IPv6

A (IPv4)	104.26.7.37 172.67.70.191 104.26.6.37
AAAA (IPv6)	2606:4700:20::681a:625 2606:4700:20::681a:725 2606:4700:20::ac43:46bf

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: hugedomains.com
Measured 2026-10-31 08:49:40 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    104.26.6.37, 104.26.7.37, 172.67.70.191
AAAA (IPv6): 2606:4700:20::681a:725, 2606:4700:20::681a:625, 2606:4700:20::ac43:46bf
www AAAA:    2606:4700:20::681a:625, 2606:4700:20::681a:725, 2606:4700:20::ac43:46bf

Readiness grade B: Works over IPv6, with one gap: its mail servers lack IPv6.
- Website over IPv6: hugedomains.com has 3 IPv6 addresses and answers on every one we tested.
    2606:4700:20::681a:725: answers (TCP 443)
    2606:4700:20::681a:625: answers (TCP 443)
    2606:4700:20::ac43:46bf: answers (TCP 443)
- www over IPv6: www.hugedomains.com has 3 IPv6 addresses and answers on every one we tested.
    2606:4700:20::681a:625: answers (TCP 443)
    2606:4700:20::681a:725: answers (TCP 443)
    2606:4700:20::ac43:46bf: 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://hugedomains.com/ via 2606:4700:20::681a:725 -> HTTP 403, certificate: valid
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/4aLT4UObUV

Permanent link: aaaa.bot/r/4aLT4UObUV · How we measure

Checked 2026-10-31 08:49:40 UTC. Full DNS report: dns.pizza/domain/hugedomains.com · JSON: /api/v1/hugedomains.com