Port Quick Scan: free scan of the most common network ports
Port Quick Scan is a free tool that runs a fast TCP scan of a fixed set of common network ports (FTP, SSH, SMTP, HTTP, HTTPS, databases and more) and identifies which services are reachable from the Internet, highlighting the riskiest exposures.
What port scanning is for
Knowing which ports are open on a server is the starting point of any network security audit: a publicly exposed database or admin service is a serious vulnerability. Port scanning helps reduce the attack surface and verify that only the necessary services are accessible.
How Port Quick Scan works
Enter a domain or IP address and the tool attempts a TCP connection to a fixed set of well-known ports, in parallel. For each open port it indicates the likely service and rates the risk: exposed databases and legacy services are flagged as critical. Only scan systems you own or are authorized to test.
100% free tool: 3 scans per day with no sign-up, 50 per session with a free account.