Browser – Download (Assets, XHR, Pageload)
Request download phase indicates time browser is receiving response from the backend system. Here we also are making 3 different Root Causes for assets (CSS, images, etc.), XHR and full page load requests.
Root Cause grouping is done using:
- domain name for Assets and full page load requests
- shortened URL for XHR requests
To solve the issue in most cases one needs to optimize backend system endpoint (making it closer to the user, eg. using a CDN) or the size of content returned from the system.