How to Capture a HAR File
Learn how to record network activity for troubleshooting issues
A HAR (HTTP Archive) file records all network requests between your browser and the server. Our technical team may request this to help diagnose issues.
HAR files can contain login information, credentials, and session cookies. For data privacy, avoid recording personal details such as passwords and credit card information. We recommend recording in an Incognito window.
Chrome
Open Developer Tools
Open the Developer Tools from the menu (Menu → More Tools → Developer Tools), or press Ctrl+Shift+C (Windows) / Cmd+Option+C (Mac).
Go to Network Tab
Click on the Network tab in the Developer Tools panel.
Start Recording
Look for a round button at the top-left of the Network tab. Make sure it is red. If it is grey, click it once to start recording.
Enable Preserve Log
Check the box next to Preserve log to keep all network requests even after page navigation.
Clear Previous Data
Use the clear button (circle with a diagonal line) right before reproducing the issue to remove unnecessary information.
Reproduce the Issue
Perform the action that causes the error:
- Load or refresh the page with errors
- Click the button that fails
- Complete the checkout that has issues
Save the HAR File
Right-click on the network request grid and choose Save all as HAR with Content.
Alternatively, click the export button (downward arrow with a line underneath).
Firefox
Open Developer Tools
Press Ctrl+Shift+E (Windows) / Cmd+Option+E (Mac) or go to Menu → Web Developer → Network.
Enable Persist Logs
Click the gear icon and enable Persist Logs.
Reproduce the Issue
Perform the action that causes the error.
Save the HAR File
Right-click on any request and select Save All As HAR.
Safari
Enable Developer Menu
Go to Safari → Preferences → Advanced and check Show Develop menu in menu bar.
Open Web Inspector
Go to Develop → Show Web Inspector or press Cmd+Option+I.
Go to Network Tab
Click on the Network tab.
Enable Preserve Log
Check Preserve Log in the Network tab.
Reproduce and Export
Reproduce the issue, then click Export to save the HAR file.
Video Tutorial
For a visual walkthrough, watch this helpful video:
Watch: How to Capture a HAR File (YouTube) →
Sending the HAR File
Once you have the HAR file:
- Email: Send to support+har@subscribfy.com
- In-App Chat: Attach the file in the chat widget
- Ticket: Upload when submitting a support ticket
Please include a description of the issue and the steps you took before recording the HAR file.
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