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Check connection

SkyPing

Network tools that keep what they see to themselves.

IP geolocation by DB-IP

Tools

IP Address Lookup DNS Leak Test Browser Check HTTP Headers Port Check Ping SSL/TLS Checker DNS Lookup Mail Check WHOIS Lookup Subnet Calculator MAC Address Lookup

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IP lookup
DNS leak test
Browser check
HTTP headers
Port check
Ping
SSL checker
DNS lookup
Mail check
WHOIS
Subnet calculator
MAC lookup

Is your port reachable?

We knock once on one port of the address you are visiting from, and on no other. For port forwarding, servers and games.

Port to check

Try

Checked on the address you use for this page

Pick a port or enter one. We check it on your own address, and only there.

What we pass on

Your address only.

We connect to the address you came from, on the one port you chose, and close the connection right after the handshake.

skyping.chown
your addressyou

From your terminal

$ curl "skyping.ch/port?port=22"

About this check

There is no way to check another address. That keeps SkyPing from becoming a port scanner.
Ten checks per five minutes. Tor exits are not checked, thousands of people share them.
Only TCP. UDP ports (WireGuard, many games) cannot be checked from outside, a closed UDP port often does not answer either.