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.
Policy Manager - Policy Manager is cloud-based policy management software that enables users to improve performance and compliance around their policies.
StatusCake - Website Uptime Monitoring & Alerts – Free Unlimited Downtime Monitoring
Slackin - Create your own public Slack chat community
Better Uptime - We call you when your website goes down
Mio - Powering seamless communication between workplace chat apps.