Capture web session traffic

Using Chrome DevTools

Capturing live ad requests and Ad Manager interactions using HTTP network sessions can be a powerful troubleshooting exercise. By providing network sessions to Ad Manager support, you can help expedite issue resolution time.

Learn about capturing mobile session traffic.


  • A desktop or laptop computer
  • Chrome browser (other major browsers also support capturing web session traffic)

Using Google Chrome

Chrome's DevTools can capture all traffic and save it to a HAR file. Here's how to extract the HAR file in Chrome:

  1. Right-click in the browser window or tab and select Inspect.
  2. Click the Network tab in the panel that appears.
  3. Navigate to the URL you want to traffic.
  4. Click the download button Download (Export HAR appears when you hold the pointer over it.)
  5. Name the file.
  6. Click Save.

Content for all requests on the page are saved in the same HAR file.

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