Open Port Scanner
Scan common business ports on your domain to find unintentionally exposed services. Checks 17 ports including RDP, database servers, FTP, and email protocols — with plain-English risk explanations.
Why Open Ports Are a Security Risk
Every open port on your server is a potential entry point for attackers. Services like Remote Desktop (port 3389), MySQL (3306), and FTP (21) should never be directly accessible from the internet — they should be firewalled and accessed only via VPN or restricted IP ranges.
Attackers run automated scanners 24/7 probing for open ports. An exposed RDP port can be discovered and brute-forced within minutes of going live. This tool checks the same ports attackers do — so you can close them first.
Note: This scan targets the IP address of your domain. Results reflect your external firewall posture — not internal network security.