To track multiple requests:
- Open your page in a browser.
As soon as the page loads, Z-Ray is displayed at the bottom of the page.
By default, Z-Ray displays information for the first (main) request.
Subsequent sub-requests are tracked, and their number is displayed next to the request URL on the far-left of Z-Ray.
If one of these sub-requests contains a warning or an error, the number will be highlighted with a corresponding color:
for critical errors, and 
for warnings.
- On the far-left of Z-Ray, click the URL request to open the Page Requests panel.
- From the Requests list, select the request you want to inspect. The severity column will give you an indication as to which request has warnings or errors and requires your attention, by displaying different severity flags:
- The request contains no warnings or errors
- The request contains warnings 
- The request contains critical errors
- The data in Z-Ray displays data relevant to this request only. If a panel contains a warning or error, it will display a colored flag on the panel icon accordingly.
- Select a Z-Ray panel to view data for the selected request.
