YBS Tools

Open port scanner.

We detect your public IP address and probe the ports attackers scan for first — remote desktop, file sharing, databases and legacy protocols — then tell you plainly which ones need closing.

Your public IP address

20 ports ready to check

Port map

Stealth Open
21
23
135
139
445
3389
5900
1433
3306
5432
22
25
110
143
53
1723
8080
8443
80
443

We only ever scan the connection you are browsing from, and only the ports listed above. Nothing is stored. If you are on mobile data or a guest network the results reflect that connection, not your office firewall.

What we look for

  • Remote access left open — RDP, VNC and Telnet
  • Windows file sharing reachable from the internet
  • Databases and legacy mail protocols exposed
  • Forgotten router, NAS and firewall admin pages
Talk to an engineer · 01226 695169

Found something open?

Exposed ports are usually a firewall rule nobody remembers adding. We review perimeters, lock down remote access behind VPN or Zero Trust, and keep firmware patched across your estate.