What Xpeed measures
The GPS tool reads location data after you press Start and grant permission. It can show speed, accepted distance, moving time and trip summaries. The converter performs unit arithmetic without location access.
The internet test uses M-Lab NDT7 and has its own consent step. Its network traffic is separate from GPS measurement.
How the tools are built
Xpeed uses the vehicle speedometer permission flow and dial design already used in Utilza. Its internet measurement client is the official NDT7 implementation, served locally with its license.
The guides explain the methods and limitations. Automated checks use synthetic fixtures; they do not establish accuracy on a real train, boat, flight or phone.
Questions and corrections
Use Contact Us to report a problem or ask about the tools. Include the browser, device and the steps that caused the problem, while leaving out precise locations, passwords and payment details.