If you're looking for a free firewall test, you have come to the right place. Our computer security test is designed to scan your firewall and security software for vulnerabilities. It takes less than a minute to run our all-in-one spyware removal test. Test My Firewall looks for services running on running on your system using ports 1-1500; we also perform a Trojan scan by looking for open ports known to be used by Trojans. Once the firewall test has completed, your computer will then be scanned for spy ware.