SSL Labs is Qualys’s research effort to understand SSL/TLS and PKI as well as to provide tools and documentation to assist with assessment and configuration. Since 2009, when SSL Labs was launched, hundreds of thousands of assessments have been performed using the free online assessment tool. Other projects run by SSL Labs include periodic Internet-wide surveys of TLS configuration and SSL Pulse, a monthly scan of about 150,000 most popular TLS-enabled web sites in the world.