Free network and privacy tools
Find your public IP address, test an open port or check a proxy. Choose the check you need and get a clear result, with a guide below when you need more help.
What is my IP?
See your public address, then check your connection’s privacy.
Check my IP →Is my port open?
Check whether your service can accept an incoming connection.
Test a port →Does my proxy work?
Paste one proxy or a list and see which ones respond.
Check proxies →All tools
IP & privacy
See what your connection and browser reveal.
IP & privacy check
Find your public IP and check for possible privacy leaks.
WebRTC leak test
Check whether your browser reveals another network address.
DNS leak test
See which DNS resolver connections are observed.
Browser fingerprint
See the browser properties websites can read.
TLS & HTTP signature
Inspect the connection information visible to this server.
TCP/IP fingerprint
Inspect your connection’s network stack signals.
Connectivity
Troubleshoot ports, IP versions and connection protocols.
Proxy tools
Check a proxy before using it.
Which network tool should I use?
Start with the IP address check to see the address websites receive. If a server or game cannot accept connections, use the open port checker, then compare your router’s address with the CGNAT check. Use the proxy checker to check a provider’s proxy list before configuring it.
For a VPN privacy check, compare the WebRTC, DNS and IPv6 results before and after connecting. Each tool explains what it can measure and where a result needs more investigation.
How should I use these tools?
Run the same check before and after changing a setting. For privacy checks, compare results with and without your VPN. For port checks, start your service first. If a result is unavailable or inconclusive, retry or follow the tool’s troubleshooting guide.
