Warning about counterfeit parts

I just looked up both domain registration records and they are different.
Speedmaster79.com is registered out of Tempe Arizona.

Speedmaster.com is registered out of Germany.
And yet speedmaster is in Southern california., or at least their warehouse is.
And Speedmaster79 is who I've bought my speedmaster stuff from, Directly. (Victor rocker arms, yeah, I know a gamble, and a topend kit for a bbc for ridiculously little money)