Tools
These pages do not explain, they do. They all run inside the browser, they ask you to install nothing and they store results nowhere: what you measure stays on your device.
How is my connection?
Download, upload, response time and stability, translated into plain words: whether it is enough for a video call, for a film, for working from home. Takes about ten seconds.
Is my connection stable?
Two minutes of measurements, one a second, with a chart and a count of missed replies. This is the test to run when video calls freeze now and then and the speed test says everything is fine.
Who am I on the internet?
IP address, provider, the area sites see you from, the protocol. It also checks in ten seconds whether a VPN is actually working.
What Wi-Fi is around me?
Your computer already knows which networks are around you, on which channel and how strong. Here you learn how to ask it, and I translate the answer: who is stealing your channel and where it is worth moving.
Is the site down or is it me?
Tries to open a site from two different places, your device and the Cloudflare network, and works out from the comparison which side the problem is on.
A note on how they are built
None of these tools asks you for data and none keeps the results: the history of measurements, where there is one, stays in your browser's memory and you clear it whenever you like. Every page states at the bottom what it cannot measure, because a tool that does not declare its limits is a tool that misleads. If you find a number that does not add up, tell me.