An HAR file (History Activity Report) is a log file generated by web browsers that records browsing history, including URLs, timestamps and other details. HAR files can be used to understand browsing patterns, diagnose issues or analyse web performance. The HAR files can provide valuable information to our technical support teams when troubleshooting complex issues.
When contacting Zeotap Support with you HAR file, kindly provide a concise and comprehensive description of the issue, complemented by relevant screenshots. Note that if the HAR file exceeds a shareable size, then we suggest compressing it before forwarding it to us.
The HAR file can capture Personal Identifiable Information (PII) that you enter into your browser. To protect your privacy, ensure that you exclusively perform actions related to your support concern when generating the HAR file.
Below, you can find information about creating HAR files for some of the commonly used browsers.
Google Chrome
To create an HAR file in Chrome:
Go to the page on the Zeotap CDP App where the issue occurs.
Click the three dots icon at the upper-right corner of the browser.
From the menu, navigate to More tools > Developer tools.
In the developer tools panel, click on the Network tab.
Check the Record icon at the upper-left corner of the Network tab is red in color (recording mode). If it’s grey, click the Record icon to start recording.
Click the Clear icon to clear all previous activity.
Select the Preserve log checkbox.
Reproduce the steps that cause the issue.
Right click on the log and select Save all as HAR with content.
Microsoft Edge
To create an HAR file in Microsoft Edge:
Go to the page on the Zeotap CDP App where the issue occurs.
Click the three dots icon at the upper-right corner of the browser.
From the menu, navigate to More tools > Developer tools.
In the developer tools panel, click the Network icon.
Check the Record icon at the upper-left corner of the Network tab is red in color (recording mode). If it’s grey, click the Record icon to start recording.
Click the Clear icon to clear all previous activity.
Select the Preserve log checkbox.
Reproduce the steps that cause the issue.
Right click on the log and select Save all as HAR with content.
Mozilla Firefox
To create an HAR file in Mozilla Firefox:
Go to the page on the Zeotap CDP App where the issue occurs.
Click the three dots icon at the upper-right corner of the browser.
From the menu, go to More tools > Web Developer Tools.
On the web developer tools panel, click on the Network tab.
Check that the Play/Pause icon is in Play mode.
Click the Trash icon to clear all previous activity.
Click the Settings icon at the upper-right corner of the Network tab and then select Persist Logs.
Reproduce the steps that cause the issue.
Right click on the log and select Save All as HAR.
Safari
To create an HAR file in Safari:
Go to the page on the Zeotap CDP App where the issue occurs.
From the menu bar, click Develop and then click Show Web Inspector.
- If you don’t see the Develop menu in the menu bar, then click Safari and select Settings. Click the Advanced tab and then select Show Develop menu in menu bar checkbox.
In the web inspector panel, click the Network tab.
Click the Trash icon clear all previous activity.
Select the Preserve Log checkbox to the upper-right corner of the Network tab.
Reproduce the steps that cause the issue.
Click Export to save the HAR file.
Last modified on February 26, 2026
