I have 2 domains for my website: mydomain.eu and mydomain.de. When I search for a product, both .eu and .de show in results, but I just want .de to show in the results. The actual website sits under .eu, but because my hosting provider doesnt support .de domains, I had to register the .de domain with 123Reg and point the domain to my hosting space.
How can I have just .de showing in the search results? Would a canonical tag do this? Or is there something in Google Webmaster Tools?