Platypus - Realtime server monitoring and reporting
Marshal - Quickly scan your cloud for exposed sensitive information.
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.
Trustpage - Building trust with customers just got easier
Nagios - Complete monitoring and alerting for servers, switches, applications, and services
The SaaS CTO Security Checklist - The security checklist all CTOs should follow