Secure My Website - A pain-free service to add SSL to your site, for non-geeks
Pingdom - With website monitoring from Pingdom you will be the first to know when your website is down. No installation required. 30-day free trial.
Virusdie - All-in-One cloud-based, simple, powerful and gorgeous website security tools built for everyone.
StatusCake - Website Uptime Monitoring & Alerts – Free Unlimited Downtime Monitoring
Indusface AppTrana - AppTrana offers continuous website security with web application scanning, web application firewall, CDN and DDoS protection.
Better Uptime - We call you when your website goes down