Yes — redline.click has IPv6.

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

A
IPv6 readiness
Website, mail and DNS all work over IPv6.
Website over IPv6
redline.click has an AAAA record and answers on it.
✓ 2a01:4f8:1061:2301::2 answers · 443
yes
www over IPv6
www.redline.click has an AAAA record and answers on it.
✓ 2a01:4f8:1061:2301::2 answers · 443
yes
Mail servers (MX) have IPv6
Every mail server has an AAAA record.
www810.your-server.de ✓
yes
Nameservers have IPv6
3 of 3 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.
ns.second-ns.com ✓ns1.your-server.de ✓ns3.second-ns.de ✓
yes
HTTPS over IPv6 · not part of the grade yet
Loads over IPv6 with a valid certificate: HTTP 403.
https://redline.click/ via 2a01:4f8:1061:2301::2 → 403
works
 Load redline.click 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/redline.click.svg)](https://aaaa.bot/redline.click)

Check again

redline.click  Has IPv6

A (IPv4)167.235.125.216
AAAA (IPv6)2a01:4f8:1061:2301::2

www.redline.click  Has IPv6

A (IPv4)167.235.125.216
AAAA (IPv6)2a01:4f8:1061:2301::2

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/txRkahQjw_ · How we measure

Checked 2026-10-31 21:12:09 UTC. Full DNS report: dns.pizza/domain/redline.click · JSON: /api/v1/redline.click