Understanding Network Activity in Performance Profiles
The NET section in the Performance panel shows how network activity impacts your application's overall performance.
Quick Instructions
- Open DevTools (F12)
- Go to the Performance panel
- Enable Network and Screenshots in settings ⚙️
- Click Record ⏺️
- Use the buttons below
- Click Stop and analyze the results
Network Performance Testing
What to Look For
- Blue bars in the Network section
- How network requests align with main thread activity