General
- Extension
- .koeln
- Type
- Regional extension
- Meaning
- Cologne
- Registry
- domainworx Service & Management GmbH
- Registry website
- www.nic.koeln
- Registered since
- 20 February 2014
- ICANN agreement
- since 9 January 2014
Properties
- DNSSEC signed
- yes
- Name servers
- 3 (3 with IPv6)
- WHOIS server
- whois.ryce-rsp.com
- RDAP server
- rdap.ryce-rsp.com/rdap
- At 1blu
- available to order directly
Registration conditions
- Who may register?
- Any person or organisation with full legal capacity; residence in Cologne is not required.
- Length
- 1 to 63 characters.
- Characters
- a–z, 0–9, hyphen and ß, ä, ö and ü.
- Allocation
- First come, first served.
- Term
- 1 to 10 years, then automatic renewal for one year at a time.
- Transfer
- With an auth code, not within the first 60 days.
- After expiry
- 35-day restore period after deletion.
- Registrant data
- Report changes within 7 days.
- Use
- No criminal content, nothing that impersonates authorities or harms Cologne's reputation.
- Disputes
- ICANN Uniform Domain-Name Dispute-Resolution Policy (UDRP).
The registry's current rules are binding: www.nic.koeln.
Sources: NetCologne: Registration conditions .koeln/.cologne (Dec. 2023) · ICANN Transfer Policy · ICANN UDRP · IANA Root Zone Database: .koeln · As of 25 October 2026