A HAR file is a HTTP archive. It is a file format used by HTTP session tools to export data that has been captured by the browser. This includes request and response headers, the body content, and page load times.
HAR files contain the content of the pages that your browser received while the HAR file was recording. This will often show us an error response that was sent by the server, and may give more information to us to track where the issue is in the code-base. It can also show us the time taken for different parts of the browser-to-server communication, so it can help with issues related to how fast (or slow) a page may load in a browser window.
Note: HAR files may contain sensitive data:
If you have any questions about what is included, discuss that with the Customer Experience Team.
The steps vary from browser to browser. Please see the section below appropriate to your browser. These steps are applicable to desktop browsers on both Windows and MacOS.
Once the HAR file has been generated, it’s good practice to zip the file and send it to us.
Videos on how to generate a HAR file for different browsers: