Port Scanner
Scan a domain or IP for 20+ commonly exposed ports and services.
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Free to use — we just ask you to sign in so scans stay fair for everyone.
How it works
The scanner checks whether common service ports — FTP (21), SSH (22), RDP (3389), MySQL (3306), Redis (6379), and others — respond on a given domain or IP, revealing what's reachable from the public internet.
An open database or admin port that was never meant to face the internet is one of the most common ways attackers get an initial foothold — most of these services were built assuming only trusted internal traffic would reach them.
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Frequently asked questions
Is it bad if my website shows open ports?
Ports 80 and 443 need to be open for any site to work — that's expected. The concern is database, remote-access, or admin ports (like 3306, 3389, 22) being reachable from the public internet rather than restricted to trusted IPs.
Will this tool scan every possible port?
It checks the 20+ ports most commonly exposed by misconfiguration — the ones attackers scan for first — rather than the full 65,535-port range, which keeps results fast and focused on what actually matters.
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