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.
Load Impact - How many users can my web site handle?
UptimeRobot - Free Website Uptime Monitoring
DataSunrise Database Security - DataSunrise Database Security Software secures the databases and data in real-time with high performance.
Datadog - See metrics from all of your apps, tools & services in one place with Datadog's cloud monitoring as a service solution. Try it for free.
Enterprise Security - Enterprise Security is a product of Protegrity that allows users to tailor the protection of their sensitive data to suit their needs.