EarthView - Free Cloud Data Download
Netumo - Ensure healthy website performance, uptime, and free from vulnerabilities. Automatic checks for SSL Certificates, domains and monitor issues with your websites all from one console and get instant notifications on any issues.
Desktop Earth - You should run it as admin.
AppZero - AppZero is a monitoring and migration tool that allows users to keep track of different applications and servers in both simple and complex IT environments.
Xplanet - Xplanet is free software, distributed according to the terms of the GNU General Public License.
RedGate SQL Monitor - SQL Monitor helps you and your team find issues – before they become problems