All TLDs / .koeln

What is .koeln?

.koeln is a generic top-level domain, operated by dotKoeln GmbH. It's live in the official IANA DNS root zone and open for public registration through accredited registrars — anyone can register a .koeln domain if the name is available.
Type
Generic
Registration
Open to public
In DNS root
Yes

Registry operator: dotKoeln GmbH — per the IANA root database.

Source: IANA root zone database, checked August 23, 2026.

Is .koeln a real domain extension?

Yes — .koeln is a real top-level domain. It's present in the official IANA DNS root zone, which is the authoritative list of every live TLD on the internet.

Who runs .koeln?

.koeln is operated by dotKoeln GmbH, per the IANA root database.

What is .koeln used for?

As an open generic extension, .koeln can be registered by anyone for any kind of website — there are no topic restrictions unless the registry sets a specific policy.

Can anyone register a .koeln domain?

Yes — .koeln is open for public registration through accredited registrars. Whether a specific name is available depends on whether someone already owns it.

Check if you can register a .koeln domain

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