It was bound to happen at some point in time and for the erstwhile Nokia Global site, it is already time to rest in peace. The site doesn’t exist as a Nokia site anymore and all the pages redirect to new Microsoft address.
If you check for Nokia.com/global it takes you to http://www.microsoft.com/en/mobile/, which looks like a replica of the Nokia Global site. You still have all the product, support pages, but with the new Microsoft address prefixed.
The country specific Nokia sites still exist but expect them to move soon to Microsoft addresses.
Check the new site here.