If you're asking about knifeshop.com, with the address 9500 Villach, Austria, that is the vendor site owned and operated by the Campolin family, as in AGA Campolin. That is a legit site. I have never ordered from them, but I know of many who have, and they received what they paid for.
There is a phone number on their site, but it's a European number, so it's not written out the same as a US number.
Something else to bear in mind, the Italians, particularly the old-school Italian knifemakers/vendors have their own way of doing things. They don't operate like US vendors with tracking numbers and email notifications. They aren't really big on customer service and good communication.