Yes — fdmsandbox.online has IPv6.

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

A
IPv6 readiness
Website, mail and DNS all work over IPv6.
Website over IPv6
fdmsandbox.online has 2 IPv6 addresses and answers on every one we tested.
✓ 2606:4700:3035::6815:403c answers · 443✓ 2606:4700:3032::ac43:b0a9 answers · 443
yes
Mail servers (MX) have IPv6
No MX records, so mail goes to the domain's own address (implicit MX). It has an AAAA record.		yes
Nameservers have IPv6
2 of 2 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.
elias.ns.cloudflare.com ✓ines.ns.cloudflare.com ✓
yes
HTTPS over IPv6 · not part of the grade yet
Answered over IPv6 with a server error (HTTP 530) — can't tell whether that's specific to IPv6.
https://fdmsandbox.online/ via 2606:4700:3035::6815:403c → 530
?
 Which outside scripts, fonts, payments or chat fdmsandbox.online loads from have no IPv6.
 Load fdmsandbox.online over IPv6 from up to six other places — a second opinion.

Nothing keeping you from an A

  1. Nothing to fix
    Show it off: add the badge to your README.
    [![IPv6](https://aaaa.bot/badge/fdmsandbox.online.svg)](https://aaaa.bot/fdmsandbox.online)

Check again

fdmsandbox.online  Has IPv6

A (IPv4)172.67.176.169
104.21.64.60
AAAA (IPv6)2606:4700:3035::6815:403c
2606:4700:3032::ac43:b0a9

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/sglzeKb5YO · How we measure

Checked 2026-11-08 06:20:18 UTC. Full DNS report: dns.pizza/domain/fdmsandbox.online · Age, certificate and blocklists: how.is/fdmsandbox.online · JSON: /api/v1/fdmsandbox.online