ddcutil - ddcutil is a Linux program for querying and changing monitor settings, such as brightness and color levels.
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.
arandr - ARandR is designed to provide a simple visual front end for XRandR.
StatusCake - Website Uptime Monitoring & Alerts – Free Unlimited Downtime Monitoring
winddcutil - Windows implementation of the ddcutil Linux program for querying and changing monitor settings, such as brightness and color levels.
Better Uptime - We call you when your website goes down