Internet speed tests measure your provider. This measures your house: pair a second device — usually your phone — and data flows directly between the two browsers over your own network, timing your router, Wi-Fi band, walls and distance. The handshake goes through our server; the measured data never does.
When streaming stutters or game downloads crawl, the internet line is often innocent — the bottleneck is the hop from your router to the device. A "500 Mbps" plan delivering 480 Mbps to the router can still hand your sofa 90 Mbps through two walls on a congested 2.4 GHz band. This test isolates that hop: run it near the router, then from the room where things feel slow, and compare.
Direct, private, local: the two browsers connect over WebRTC on your own network. Rough guide — same-room Wi-Fi 6 typically shows 300–700 Mbps here, older Wi-Fi 5 100–400, and the 2.4 GHz band 30–90. The browser's data channel itself tops out before multi-gigabit wired speeds, so an extremely fast link may read as "faster than the test".
An internet test measures you ↔ provider. This measures device ↔ device across your own router and Wi-Fi — where most "slow internet" actually lives.
No — test traffic flows directly between the devices via WebRTC. Our server only relays the few KB of handshake so the browsers can find each other.
Advertised numbers are theoretical link rates; real throughput is typically 40–60% at close range and drops with distance, walls and congestion.