NakedSSL - Hassle-free SSL clothes for your naked domains.
HackerOne - HackerOne provides a platform designed to streamline vulnerability coordination and bug bounty program by enlisting hackers.
SSL Alerts - Free service to send SSL certificate expiration alerts
Forcepoint Web Security Suite - Internet Security
BrandSSL - On demand SSL for SaaS
Acunetix - Audit your website security and web applications for SQL injection, Cross site scripting and other...