How UpFromWhere works

UpFromWhere checks whether a website is reachable — not from a datacenter, but from real home internet connections in different countries. The probes are small hardware devices (Sensmos nodes) plugged into ordinary household routers: living rooms, studies, window sills — from Poland to India.

What happens when you run a check

You type a domain. The request joins one global queue — the whole network fires at most one check every 20 seconds, so target sites feel a gentle tap, never a flood.
Devices in different countries pick it up. Each node makes a single HTTP request, exactly the way a browser would, and measures how long the site took to answer from its own connection.
You watch it live on the map. Every line is a real measurement from a real household. If a site is slow or unreachable in one region, you see exactly where.

Why home networks give different answers than cloud monitors

A request from a home connection travels a different path than one from a cloud server: consumer ISP routing and peering, national infrastructure, the ISP's DNS resolvers, sometimes throttling or geo-blocks. A website can be perfectly healthy for a server in a datacenter and unreachable for a household two countries away. Checking from where people actually live is the only way to see the web as your visitors see it.

Where the nodes are

The network currently measures from homes in Poland, Germany, the Netherlands, France, Spain, the United Kingdom, Czechia, Latvia, Greece, Romania, the United States and India — and it grows as new operators plug in a $5 board. The network is open: anyone can run a node.

Privacy and politeness

Checks are single, browser-like HTTP requests — no scanning, no crawling, no load testing. Node locations are shown at city level only. Continuous monitoring with alerts (email, webhooks, status pages) is available as a free account.

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UpFromWhere · How it works · Privacy