Yes — plainseller.info has IPv6.

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

B
IPv6 readiness
Works over IPv6, with one gap: its mail servers lack IPv6.
Website over IPv6
plainseller.info has 2 IPv6 addresses and answers on every one we tested.
✓ 2606:4700:3037::6815:47e5 answers · 443✓ 2606:4700:3031::ac43:9667 answers · 443
yes
www over IPv6
www.plainseller.info has 2 IPv6 addresses and answers on every one we tested.
✓ 2606:4700:3037::6815:47e5 answers · 443✓ 2606:4700:3031::ac43:9667 answers · 443
yes
Mail servers (MX) have IPv6
None of the mail servers has an AAAA record.
mx1.onemail.vn ✗mx2.onemail.vn ✗mx3.onemail.vn ✗
no
Nameservers have IPv6
2 of 2 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.
achiel.ns.cloudflare.com ✓melina.ns.cloudflare.com ✓
yes
HTTPS over IPv6 · not part of the grade yet
Loads over IPv6 with a valid certificate: HTTP 200.
https://plainseller.info/ via 2606:4700:3037::6815:47e5 → 200
works
 Load plainseller.info over IPv6 from up to six other places — a second opinion.

What's keeping plainseller.info from an A

  1. Mail servers without IPv6
    mx1.onemail.vn, mx2.onemail.vn, mx3.onemail.vn 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

plainseller.info  Has IPv6

A (IPv4)172.67.150.103
104.21.71.229
AAAA (IPv6)2606:4700:3037::6815:47e5
2606:4700:3031::ac43:9667

www.plainseller.info  Has IPv6

A (IPv4)104.21.71.229
172.67.150.103
AAAA (IPv6)2606:4700:3037::6815:47e5
2606:4700:3031::ac43:9667

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

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

Checked 2026-11-01 21:13:58 UTC. Full DNS report: dns.pizza/domain/plainseller.info · JSON: /api/v1/plainseller.info