.cologne domain statistics
3,876 domains were registered under .cologne at its latest check (Aug 8, 2026), placing it #392 of 1,079. Since its first check on Feb 24, 2026 it has shrunk by 2.1% (−83 domains).
Download .cologne history (CSV)
About the .cologne extension
The registry behind .cologne is domainworx Service & Management GmbH. The extension was delegated to the root zone on Mar 19, 2014, 12.6 years ago. Its ICANN registry agreement was signed on Feb 5, 2014, 42 days before launch.
Registry details from ICANN's gTLD list.
Other extensions run by domainworx Service & Management GmbH
domainworx Service & Management GmbH operates 3 of the TLDs RootFetch tracks, holding 35,616 domains in total. .cologne is #3 of them by size, with 10.9% of the group's domains.
How .cologne compares
In domain count, .cologne outranks 64% of the extensions RootFetch follows. Among the 10 TLDs closest to it in size, .cologne grew faster than 5; the fastest of that group was .dad at +12.2%.
Biggest moves
Of 8 changes between checks, 1 was a gain, 7 were losses and 0 showed no change. The biggest gain was +1 domains (+0.0%) between Mar 1, 2026 and Mar 2, 2026. The biggest drop was −71 (−1.8%) between Mar 7, 2026 and May 30, 2026.
.cologne growth trend
.cologne accounts for 0.00% of all 89M domains RootFetch counts. Over the 165 days from Feb 24 to Aug 8 it averaged −0.09% a week, or −1 domains a day. Its strongest month on record was August 2026 (−1); its weakest was May 2026 (−71).
.cologne domains by month
| Month | Domains | Change |
|---|---|---|
| August 2026 | 3,876 | −1 |
| May 2026 | 3,877 | −71 |
| March 2026 | 3,948 | −9 |
| February 2026 | 3,957 | – |
Every check
| Date | Domains | Change | Growth | Window | Severity |
|---|---|---|---|---|---|
| Aug 8, 2026 | 3,876 | −1 | −0.0% | 70 days | |
| May 30, 2026 | 3,877 | −71 | −1.8% | 84 days | |
| Mar 7, 2026 | 3,948 | −6 | −0.2% | 4 days | |
| Mar 3, 2026 | 3,954 | −2 | −0.1% | 1 day | |
| Mar 2, 2026 | 3,956 | +1 | +0.0% | 1 day | |
| Mar 1, 2026 | 3,955 | −2 | −0.1% | 3 days | |
| Feb 26, 2026 | 3,957 | −1 | −0.0% | 1 day | |
| Feb 25, 2026 | 3,958 | −1 | −0.0% | 1 day | |
| Feb 24, 2026 | 3,959 | – | – | first check |
Questions about .cologne
How many .cologne domains are there?
3,876, according to the .cologne zone file on Aug 8, 2026.
Can anyone register a .cologne domain?
Yes, unless domainworx Service & Management GmbH sets its own limits. .cologne is a generic extension, not a company-only brand TLD.
Who runs the .cologne domain extension?
The registry operator is domainworx Service & Management GmbH.
When was .cologne created?
It was delegated on Mar 19, 2014.
Is .cologne growing?
.cologne went from 3,959 domains on Feb 24, 2026 to 3,876 on Aug 8, 2026, a change of −2.1%.
How big is the .cologne domain extension compared to others?
.cologne is number 392 in size among tracked extensions. Its nearest neighbours are .okinawa, .recipes, .archi.