Sweden effectively fell off the internet last night when maintenance to Domain Name Systems damaged every single .se web address.

The problem happened at quarter to ten last night and took just less than an hour to fix.

But some problems remained because the address data is cached externally by ISPs - these servers had to be flushed - some ISPs outside Sweden, unaware of the problem, may still be having problems finding addresses ending in .se.

An error in a script used to update the .se domain led to an error being introduced into every single domain name. The software failed to add the fullstop to .se addresses. This mean the system failed to understand that .se was the top level domain.

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