Danish to English Other Internet, e-Commerce

OK, here is an interesting term: can anyone help me with "trust mark". I am somewhat stumped. I was going to go with "tiltrosmærke" but was having second thoughts.

Ostensibly a "trust mark" is a mark/logo/graphic that is placed somewhere on a website, in order to assure e-commerce customers that they can "trust" the site. It doesn't seem to exist in Danish, and if it doesn't I'd be happy to accept an alternative.