AppTrana provides advanced, unmetered DDoS protection and secures your web apps and APIs from malicious traffic while ensuring application availability with a guaranteed uptime of 99.99%. Not just thwarting illegitimate traffic tries to enter the network, it monitors each traffic and protects from all types of DDoS attacks, including layer 3, 4, & 7 attacks, known and emerging threats. It also includes 24/7 expert support and coordination in mitigation.
SSL Alerts - Free service to send SSL certificate expiration alerts
Virusdie - All-in-One cloud-based, simple, powerful and gorgeous website security tools built for everyone.
Secure My Website - A pain-free service to add SSL to your site, for non-geeks
Checkbot - Checkbot will boost the SEO, speed and security of your site by checking you're following 50+ web best practices. Browser extension with free and paid plans.
NakedSSL - Hassle-free SSL clothes for your naked domains.
Chaos Toolkit - A chaos engineering toolkit to help you build confidence in your software system