ExEinfo PE - Packer, compressor detector / unpack info / internal exe tools.
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.
WWPack32 - WWPack32 - Windows executable files compressor and protector.
StatusCake - Website Uptime Monitoring & Alerts – Free Unlimited Downtime Monitoring
UPX - UPX (Ultimate Packer for eXecutables) achieves an excellent compression ratio and offers very fast...
Better Uptime - We call you when your website goes down