Tyrolium SpeedTest measures your connection's download speed, upload speed, ping and jitter. The measurement engine is built on LibreSpeed (github.com/librespeed/speedtest), an open-source project under the LGPL license created by Federico Dossena, integrated as-is on the backend/worker side - no rewrite of the measurement logic. The interface itself was fully rebuilt in Angular on the Tyrolium UI design system, with car-speedometer-style gauges: blue for download, red for upload.