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  1. NAV
  2. Co.uk Domain

.CO.UK domain

The first official domain extension for the United Kingdom.

This domain is listed in the following categories: United Kingdom, Europe, ccTLD.

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New registration (annual)
Annual renewal
Transfer (including renewal for 1 year)
Modification of property rights
Quarantine service



General information about .co.uk domain extension

Domain transfer
.co.uk domain transfer is possible
Transfer with authorization code
An auth-code/EPP is not required for .co.uk domains
Domain security
An accidental transfer block cannot be set for the .co.uk domain
Modification of property rights
Changing ownership is possible for .co.uk domains
Domain names with diacritics (IDN)
The .co.uk domain cannot contain special characters
A .co.uk domain can only contain numbers
Nominet ( Website | Rules )

Special provisions for .co.uk domain

The length of the domain
A .co.uk domain can be between 3 and 63 characters long. Dashes can be used, but not at the beginning or end of the domain and not two (2) consecutive ones (for example, aa--bb.co.uk).
Owner and administrative contact must reside in:.
United Kingdom - UK.


Registration in ~ one day

New registration
1 - 10 years
1 - 9 years
Duration of registration
It usually takes a few seconds to register a .co.uk domain, but there is also the possibility to last a business day.
Notice period
The notification period for expiration is with 6 days before the domain expires.

After a prior notification of renewal or expiration of a .co.uk domain, it will be automatically returned to the Registry for registration according to the rule first come, first served.

Trends and general information

The .co.uk domain is the top-level domain of the UK and Northern Ireland Internet Country Code. You can register .co.uk domains as personal or as a third level domain: This could be the .co.uk domain mentioned above, especially interesting for companies. The .me.uk domain, for general or personal use and org.uk for public institutions and organizations. Registering a .co.uk domain is very easy and comfortable: only the personal data is requested by NAV to register the desired domain in real time.

The .co.uk domain clearly demonstrates a business orientation: particular British companies or those companies that are culturally, ethnically or economically connected with the United Kingdom and Northern Ireland buy and register their personal .co.uk domain. Most .co.uk domains are registered in the UK because this type of domain offers great potential in search engine optimization (SEO): International search engines rate the .co.uk domain really high because it is one of the most popular top-leaven-domains around the world. Visitors immediately recognize an orientation in English, with business focus on the requested page.

British companies and individuals could choose some alternative ways to buy and register a domain that fits: Besides .co.uk domain, in many cases, top-level generics .com și .org they are an excellent choice.


In February 2020, a study was published showing the huge spread and popularity of the .co.uk domain: Nearly 10 million .co.uk domains registered make the British extension the fourth most popular domain extension worldwide.

The top-level domain of the United Kingdom was already introduced in 1985. The British company Nominet is responsible for managing .uk domains. Additional information and services are available on the register's website, which you can access - www.nic.uk

For Domain Registration please access the page

Domain Registrations
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