The Profiler API records data about the execution of a page, which you can send to a server for later analysis. Also known as self-profiling.

Learning resources on MDN

• JS Self-Profiling API
• Profiler: Profiler() constructor
• Profiler: stop() method

Browser support

• Chrome 94 Released on 2021-09-21
• Chrome Android 94 Released on 2021-09-21
• Edge 94 Released on 2021-09-24
• Firefox ❌ See bugzil.la/1867361 Vendor position (concerns: security)
• Firefox for Android ❌ See bugzil.la/1867361 Vendor position (concerns: security)
• Safari ❌
• Safari on iOS ❌

View web-platform-tests results for this feature - View the feature source file (dist) - Edit the feature - Report an issue about this feature