Where and how can you see what the browser is doing?

To understand what the browser is doing at the moment, you can use the built-in developer tools (DevTools), which are available in most modern browsers (Chrome, Firefox, Edge). DevTools has several tabs that help you see the browser's activity:

• Network — shows all network requests made by the browser: page loads, scripts, styles, images, etc.
• Performance — allows recording and analyzing which processes and scripts are running, how long rendering, loading, and event handling take.
• Console — displays errors, warnings, and logs that help understand what is happening in the browser.
• Sources — lets you view loaded scripts and set breakpoints for debugging.

Example: in Chrome, press F12 or Ctrl+Shift+I, go to the Network tab, refresh the page, and see all requests. In the Performance tab, you can record a session and analyze which functions and processes take time.

Thus, DevTools is the main tool for monitoring and analyzing browser activity.