Domain guides
Why some countries register names at .co.uk or .com.pl
In the United Kingdom, Poland, Australia and Japan a name can be registered at two different levels. These are not two spellings of one domain — they are two separate registrations that can belong to two different companies.
Levels read from right to left
In shop.example.co.uk, .uk is the country extension, .co.uk is a namespace defined by the registry, and example.co.uk is the registered domain. The shop part is a subdomain the holder creates for free.
Poland works the same way. Alongside names directly under .pl, the registry operates functional namespaces such as com.pl and org.pl, plus dozens of regional ones like waw.pl for Warsaw.
A namespace can signal a purpose
Spaces such as .co.uk, .org.uk or .ac.uk were designed for different audiences. Some of these signals are loose conventions, others come with strict eligibility rules — an academic namespace is usually restricted to accredited institutions.
Check the registry rules before assuming a namespace is open to you, especially for government and academic spaces.
The price difference is real but small
In the United Kingdom, .uk and .co.uk cost the same at a typical registrar, so price tells you nothing about which to choose. In Poland a functional name is cheaper to renew than a name directly under .pl — roughly a third less per year.
Over five years across a handful of protective registrations the difference becomes visible, which is exactly when it is worth doing the arithmetic instead of guessing.
Recognition favours the shorter form
Customers type the short version by habit. So a free example.com.pl next to a taken example.pl is not an opportunity — it is a warning that part of the traffic you consider yours will land on someone else.
If the name matters, take both and redirect one to the other. It is the cheapest insurance policy in this entire business.
Official sources
Reviewed: 28 August 2026 · DomainsNavigator Editorial Team