Yes — marathonbet.dk has IPv6.

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

IPv6 readiness

Website, mail and DNS all work over IPv6.

Website over IPv6 marathonbet.dk has 2 IPv6 addresses and answers on every one we tested. ✓ 2a06:98c1:310c::ac40:9102 answers · 443✓ 2a06:98c1:3106::6812:2afe answers · 443	yes
www over IPv6 www.marathonbet.dk has 2 IPv6 addresses and answers on every one we tested. ✓ 2a06:98c1:310c::ac40:9102 answers · 443✓ 2a06:98c1:3106::6812:2afe answers · 443	yes
Mail servers (MX) have IPv6 Every mail server has an AAAA record. marathonbet-dk.mail.protection.outlook.com ✓	yes
Nameservers have IPv6 2 of 2 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up. daisy.ns.cloudflare.com ✓justin.ns.cloudflare.com ✓	yes

HTTPS over IPv6 · not part of the grade yet
Loads over IPv6 with a valid certificate after 2 redirects: HTTP 200.

https://marathonbet.dk/ via 2a06:98c1:310c::ac40:9102 → 301https://www.marathonbet.dk/ via 2a06:98c1:310c::ac40:9102 → 302https://www.marathonbet.dk/da/ via 2a06:98c1:310c::ac40:9102 → 200

works

Nothing keeping you from an A

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

Check again

marathonbet.dk Has IPv6

A (IPv4)	172.64.145.2 104.18.42.254
AAAA (IPv6)	2a06:98c1:310c::ac40:9102 2a06:98c1:3106::6812:2afe

www.marathonbet.dk Has IPv6

A (IPv4)	104.18.42.254 172.64.145.2
AAAA (IPv6)	2a06:98c1:310c::ac40:9102 2a06:98c1:3106::6812:2afe

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: marathonbet.dk
Measured 2026-11-15 15:48:19 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    172.64.145.2, 104.18.42.254
AAAA (IPv6): 2a06:98c1:310c::ac40:9102, 2a06:98c1:3106::6812:2afe
www AAAA:    2a06:98c1:310c::ac40:9102, 2a06:98c1:3106::6812:2afe

Readiness grade A: Website, mail and DNS all work over IPv6.
- Website over IPv6: marathonbet.dk has 2 IPv6 addresses and answers on every one we tested.
    2a06:98c1:310c::ac40:9102: answers (TCP 443)
    2a06:98c1:3106::6812:2afe: answers (TCP 443)
- www over IPv6: www.marathonbet.dk has 2 IPv6 addresses and answers on every one we tested.
    2a06:98c1:310c::ac40:9102: answers (TCP 443)
    2a06:98c1:3106::6812:2afe: answers (TCP 443)
- Mail servers (MX) have IPv6: Every mail server 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 after 2 redirects: HTTP 200.
    https://marathonbet.dk/ via 2a06:98c1:310c::ac40:9102 -> HTTP 301, certificate: valid
    https://www.marathonbet.dk/ via 2a06:98c1:310c::ac40:9102 -> HTTP 302, certificate: valid
    https://www.marathonbet.dk/da/ via 2a06:98c1:310c::ac40:9102 -> HTTP 200, certificate: valid
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/2D71Zy9OY2

Permanent link: aaaa.bot/r/2D71Zy9OY2 · How we measure

Checked 2026-11-15 15:48:19 UTC. Full DNS report: dns.pizza/domain/marathonbet.dk · Age, certificate and blocklists: how.is/marathonbet.dk · JSON: /api/v1/marathonbet.dk