The Errors tab contains the errors that were received by the web-server under the test as a result of HTTP request. The report displays all errors received during the test run, categorized by labels (pages) and error types.

View Errors Report

Follow these steps:

1. In the Performance tab, select Reports.
2. Click Show all reports and select a report to view its details.
3. Click the Errors tab.
   
   You can see all errors received during the test run.
4. (Optional) Move the timeline slider narrow down the time to focus on errors at a certain point in time.  The results for your selected time period will show in the results table. To reset your selection, click Reset Timeline. 
5. Group errors by:
   • Label
   • Response Code
   • Assertion Name

We report these types of errors:

• Top requests
• Assertions
• Failed embedded resources

For each error, the following information displays:

• Response code
• Response message
• Number of failed requests