Comprehensive information about all top-level domains (TLDs) including generic, country code, and brand-specific domains.
Showing 12 of 2000 TLDs ( 2000 total)
.koeln is a geographic top-level domain designed to represent the city of Cologne, Germany. It is intended for use by businesses, organizations, and residents connected to Cologne to build local identity online. The domain supports community branding, local marketing, and digital presence for institutions tied to the city.
Open for registration by anyone; no geographic or residency restrictions
The .koeln extension is a geographic top-level domain in the Domain Name System (DNS). It is managed by dotKoeln GmbH. .koeln was introduced in 2014. There are currently 17,629 domains registered under this extension. Registration prices start from USD 28.39. DNSSEC adoption stands at 1.6%.
Price range based on 1 registrar. Actual prices may vary.
Compare .koeln domain registration and renewal prices across 1 registrar. Prices are in USD and updated daily.
| Registrar | Registration | Renewal | Transfer |
|---|---|---|---|
| dynadot | $28.39 | $28.39 | $25.32 |
Prices checked April 12, 2026. Prices exclude ICANN fees where applicable and may vary by registrar promotions or contract terms.
The .koeln domain was applied for by NetCologne Gesellschaft für Telekommunikation mbH and delegated to the DNS root zone on March 5, 2014. The registry operator changed in January 2018 when dotKoeln GmbH acquired the operation. The city of Cologne continues to use the domain in its public communications and marketing campaigns, with NetCologne providing operational support.
The .koeln TLD serves a specific purpose in the domain ecosystem, providing users with clear context about the websites using this extension.
The .koeln TLD is commonly used for the following purposes:
17,629
1.6%
If .koeln doesn't meet your needs, consider these alternatives:
| Metric | Value |
|---|---|
| Extension | .koeln |
| Type | Generic TLD (gTLD) |
| Total Registrations | 17,629 |
| DNSSEC Adoption | 1.6% |
| Registration Price | USD 28.39 |
| Renewal Price | USD 28.39 |
| Registry Operator | dotKoeln GmbH |
| Introduced | 2014-03-05 |
| Restrictions | Open for registration by anyone; no geographic or residency restrictions |
Registration density analysis for .koeln domains by character length. Currently 11,360 domains are registered across all lengths.
Total Registered
11.4K
Peak Saturation
10.4%
2-char names
DNSSEC Adoption
1.9%
Top Provider
GoDaddy
| Length | Registered | % Full | Density |
|---|---|---|---|
| 2 chars | 70 | 10.4% | |
| 3 chars | 793 | 4.5% | |
| 4 chars | 738 | 0.16% | |
| 5 chars | 1,239 | 0.01% | |
| 6 chars | 1,236 | <0.01% | |
| 7 chars | 1,222 | <0.01% | |
| 8 chars | 1,276 | <0.01% | |
| 9 chars | 1,237 | <0.01% | |
| 10 chars | 1,271 | <0.01% | |
| 11 chars | 1,115 | <0.01% | |
| 12 chars | 1,163 | <0.01% |
Updated daily from zone file analysis. Alpha density = registered / 26^length.
Compare across all TLDs →No geographic or organizational restrictions; open to public registration
The .koeln TLD is available for registration through accredited domain registrars.
How does .koeln compare to similar top-level domains? This comparison covers pricing, type, and availability to help choose the right domain extension.
View the full TLD Directory to browse all 1,900+ top-level domains with pricing, registration density analysis, and DNSSEC adoption rates.
DNSChkr maintains a comprehensive TLD directory covering all 1,900+ active top-level domains. The data on this page combines multiple authoritative sources to provide information not found in standard TLD listings.
Domain registration counts and density analysis are computed daily from TLD zone files, providing accurate registration statistics rather than estimates.
DNSSEC deployment percentages are measured by scanning actual DNS records across all registered domains in each TLD zone.
Registration, renewal, and transfer prices are checked hourly across multiple accredited registrars and compared automatically.
DNS provider distribution is calculated from nameserver records, showing which hosting providers serve the most domains in each TLD.
Use DNSChkr tools to inspect any .koeln domain: run a full DNS health check, check DNS propagation, look up WHOIS records, or verify email authentication.
Disclaimer: The information on this page is sourced from IANA, ICANN, and respective registry operator publications, then structured and formatted with the assistance of AI. While accuracy is a priority, details such as pricing, registration requirements, and policies may change. Always verify with the official registry or an accredited registrar before making registration decisions.