A network scan can reveal hidden cameras connected to the same Wi-Fi – but not all of them. What a scan finds, what it misses, and how to combine it with a physical check.

See every device on your home network in seconds. Scan your WiFi from your phone, identify each device, and spot anything that shouldn’t be there.

Internet speed is really two things: how much data per second and how fast the connection responds. Learn what download, upload, ping, and jitter mean – and how to test each properly.

Find your external (public) and internal (private) IP address in seconds from your phone. Step-by-step guide, plus what each address is for.

DNS turns the website names you type into the numbers computers use. Here is how a DNS lookup works, why it affects your speed, and how to check it yourself.