Yes — dropboxenergy.com has IPv6.

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

A
IPv6 readiness
Website, mail and DNS all work over IPv6.
Website over IPv6
dropboxenergy.com has an AAAA record and answers on it.
✓ 2a00:d70:0:a::166 answers · 443
yes
www over IPv6
www.dropboxenergy.com has an AAAA record and answers on it.
✓ 2a00:d70:0:a::166 answers · 443
yes
Mail servers (MX) have IPv6
Every mail server has an AAAA record.
mx1.mail.hostpoint.ch ✓mx2.mail.hostpoint.ch ✓
yes
Nameservers have IPv6
3 of 3 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.
ns3.hostpoint.ch ✓ns2.hostpoint.ch ✓ns.hostpoint.ch ✓
yes
HTTPS over IPv6 · not part of the grade yet
The certificate served over IPv6 at 2a00:d70:0:a::166 isn't valid for dropboxenergy.com: ERR_TLS_CERT_ALTNAME_INVALID.
https://dropboxenergy.com/ via 2a00:d70:0:a::166 · ERR_TLS_CERT_ALTNAME_INVALID
problem
 Load dropboxenergy.com over IPv6 from up to six other places — a second opinion.

Nothing keeping you from an A

  1. The certificate served over IPv6 is wrong
    The certificate served over IPv6 at 2a00:d70:0:a::166 isn't valid for dropboxenergy.com: ERR_TLS_CERT_ALTNAME_INVALID. Often the IPv6 address points at a different server (or an old one) than IPv4 does. Make sure 2a00:d70:0:a::166 serves the same certificate as your IPv4 address.

Check again

dropboxenergy.com  Has IPv6

A (IPv4)217.26.48.101
AAAA (IPv6)2a00:d70:0:a::166

www.dropboxenergy.com  Has IPv6

A (IPv4)217.26.48.101
AAAA (IPv6)2a00:d70:0:a::166

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/r_Z9RNg4xB · How we measure

Checked 2026-10-31 22:56:04 UTC. Full DNS report: dns.pizza/domain/dropboxenergy.com · JSON: /api/v1/dropboxenergy.com