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I built NetworkTests.com because I kept seeing great Speedtest scores while my video calls were still choppy and games were lagging. The reason turned out to be packet loss — and Speedtest simply can't see it because TCP retransmits lost packets automatically. NetworkTests.com uses WebRTC DataChannels in unreliable/unordered UDP mode — the same way real-time apps behave — so packet loss,...
Network DiagnosticsThe network test that shows what Speedtest hides
NetworkTests.com goes beyond traditional speed tests. Tools like Speedtest rely on TCP, which retransmits lost packets and can hide network issues. NetworkTests.com uses WebRTC UDP to measure real packet loss, latency, and jitter experienced by video calls, gaming, and VoIP. It also performs hop-by-hop path diagnostics from server to your connection edge. Includes tools like IP lookup, DNS lookup/trace, traceroute, ping, MTR, VPN detection, DNS leak test, and SSL proxy check.
Network DiagnosticsThe network test that shows what Speedtest hides