A free certificate will secure your site or server for 90 days with full 128/256 bit encryption. To establish trust in addition to providing security, you should obtain an Extended Validation SSL Certificate. Comodo offers the widest variety of SSL products, so you can always get a certificate to suit your business needs. All Comodo paid certificates come with a range of value-added features like our free dynamic TrustLogo, a relying party warranty and free daily web site vulnerability scanning.