Server timingThe serverTiming property of the PerformanceResourceTiming API contains server timing information about network requests.performancePerformancewidely2023-03-272025-09-27https://w3c.github.io/server-timing/server-timinghttps://developer.mozilla.org/docs/Web/API/PerformanceServerTimingapi.PerformanceResourceTiming.serverTimingapi.PerformanceServerTimingapi.PerformanceServerTiming.descriptionapi.PerformanceServerTiming.durationapi.PerformanceServerTiming.nameapi.PerformanceServerTiming.toJSONhttp.headers.Server-Timinghttp.headers.Server-Timing.trailerhttps://nowyoucanuse.com/features--server-timing.html