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.
Jscrambler - Jscrambler is a JavaScript protection solution that makes apps self-defensive, resilient against tampering, malware injection, & code theft.
StatusCake - Website Uptime Monitoring & Alerts – Free Unlimited Downtime Monitoring
Wallarm - Wallarm WAF is AI-powered Platform that automates real-time application protection combines Active Threat Verification engine with a DevOps friendly NG-WAF and security testing for websites, microservices and APIs across public and private clouds.
Better Uptime - We call you when your website goes down
Flexera Software Vulnerability Manager - Flexera Software Vulnerability Manager provides solutions to continuously track, identify and remediate vulnerable applications.