I am looking into buying a SSL certificate for one of my domains. However, last time when I bought a standard SSL certificate from godaddy, every time my site was visited for the first time, the browser certificate pop-up showed up. I am wondering how come that is not the case with chase.com, or bank of america's website. They directly go to https without the need to verify their certificates. What kind of a certificate do I need to buy ? Where should i buy certificates that the browsers are automatically familiar with ?