SSL certificates are great, but they are not the most advanced type of encryption used on the Internet. In fact, CA uses TLS certification. The TLS certificate is the next step in the HTPPS lifecycle, which was replaced in 2008 and addresses some of the minor vulnerabilities in the SSL certificate. Until recently, however, it was used on sites that required payment. PayPal is perhaps one of the most notable examples of payment sites that use TLS. In fact, many encryption services implement TLS instead of SSL certificates. As long as your URL contains the phrase HTTPS, the content of your site will get more visitors.