DigiCert Secure Site Pro EV is number one in the World. It has many features that make it so special. SGC feature increases minimal 40-bit encryption in old browsers to strong 256-bit. Extended validation brings another outstanding option - the Green address bar, it boosts sales and increases visitors trust level. SAN items may secure up to 250 different domains or sub-domains at once. Moreover, it comes with 1,750,000$ warranty level; that is highest in the industry and yes, it supports ECC hash algorithm.