← My IP
Port scanner
Open ports
We check which of the 12 ports on your address answer from the internet. An open port — a door anyone can knock on: remote desktop, file sharing, a proxy. For a home connection the usual picture — none open at all.
Address to check
216.73.216.184
scan not started
open — closed — filtered —
12 ports in total| Port | Service | State |
|---|---|---|
| 21/tcp | FTP | not checked |
| 22/tcp | SSH | not checked |
| 23/tcp | Telnet | not checked |
| 25/tcp | SMTP | not checked |
| 80/tcp | HTTP | not checked |
| 443/tcp | HTTPS | not checked |
| 445/tcp | SMB | not checked |
| 1080/tcp | SOCKS | not checked |
| 3128/tcp | HTTP proxy | not checked |
| 3389/tcp | RDP | not checked |
| 5900/tcp | VNC | not checked |
| 8080/tcp | HTTP-alt | not checked |
What the states mean
- open
- The connection went through: something is listening on this port and it can be reached from the internet. Unless you run a server here on purpose — close it.
- closed
- The host refused: it was reached, but nothing is listening on this port. Safe, though it does reveal the address is live.
- filtered
- No reply at all: the packet was dropped by a firewall, router or ISP. For a home connection this is the calmest state.
- not checked
- The scan hasn’t been run yet, or the server returned nothing for this port.
- Whose address
- Only the one this page was opened from — you can’t substitute someone else’s. With a VPN or proxy on, it’s their address that gets checked, not your home one.
- Timeout
- All connections run in parallel, and we wait no more than 1 s: a slow host may not make it and will end up as “filtered”.
- Repeat
- The same address can be scanned again no sooner than 30 s later.