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The 400 Errors report contains a bar graph that allows you to view the top 10 requests that resulted in a 400 Bad Request response code. A 400 Bad Request response code occurs when your web server refuses a malformed request. For each asset in the bar graph, you can get a quick sense of how many requests resulted in a 400 Bad Request response code by comparing the color-coded portions of the bar corresponding to it. The yellow portion of the bar indicates all of the requests that returned a 400 Bad Request response code for that asset. The remaining red portion represents the requests that returned a different response code for that asset.
This report displays the data corresponding to the graph directly below it.
View a description for each of these metrics.