IPv6
Measured 2026-11-15 15:52 UTC · aaaa.botThe website has no IPv6.
cdu.de has no IPv6 address published.
- ✗ cdu.de: no IPv6 address
- ✗ www.cdu.de: no IPv6 address
- ✗ Mail: 0 of 1 servers have IPv6
- ✓ Nameservers: 3 of 4 have IPv6
Details: published addresses and what answered
| Name | Published address (AAAA) | Answers when we connect |
|---|---|---|
| cdu.de | Publishedno IPv6 address published | Answers when we connectnothing to test |
| www.cdu.de | Publishedno IPv6 address published | Answers when we connectnothing to test |
Publishedmail48.cdu.de | Answers when we connect✗ no IPv6 | |
| Nameservers | Publishedns1.cdu.dens1.arcor-ip.dens2.arcor-ip.dens3.arcor-ip.de | Answers when we connect✗ no IPv6✓ has IPv6✓ has IPv6✓ has IPv6 |
See where it lives on the IPv4 map →
Lineage
Our records: Jan 5, 2009 → Nov 15, 2026These dates are when our records begin, not when the domain was registered.
DNS provider
- arcor-ip.de + cdu.deJan – Feb 2009
IPv6
- IPv6no IPv6 publishedFirst measured Nov 2026
What changed
- IPv6 first measured: no IPv6 published on Nov 15, 2026cdu.de: no IPv6 published. Grade D. Measured by aaaa.bot, 2026-11-15 15:52 UTC. No earlier IPv6 record is held, so this is not a "gained" date.
Solid bar: the stretch we observed that name. Dot: a single sighting. Dotted line: no record between sightings of the same name. Nothing is drawn between different names.
DNS provider, WHOIS snapshots: 4 WHOIS/RDAP snapshots that listed nameservers, 2009-01-05 to 2009-02-15 (who.is archive). Both sources feed one row per provider (hover a bar to see which); a change is placed between the nearest observations on either side, and where the two sources disagree, both are listed under What changed.
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