When setting up your monitors, you have the option to set load time limits on the Alert conditions tab of the Monitor setup dialog. A load time limit is the amount of time the check took from initial request until the check is complete. You have two different options.

Load time limit 1: Use this setting to set the time in milliseconds for when the load time duration becomes a concern.

Load time limit 2: Use this setting to set the time in milliseconds for when the load time duration becomes critical.

Alerting based on load time

Although Uptrends always reports on load time values (see below), unless you check the corresponding box, Uptrends will not issue an alert when the check exceeds the load time limits.

Load time settings are located on the monitor set up advanced tab

Regardless of whether you have checked the box for alerting on load time, warnings appear in the Monitor Status dashboard. If Load time limit 1 is exceeded, the value appears yellow in the logs, and when load time limit 2 is exceeded, the load time appears red in the logs.

Monitor Status dashboard showing load limit warnings

You will notice that in the monitor status log above that two monitors show a total time in yellow and red, but the error indicator on the left still appears green for successful tests. This is the result of not having the load time limit boxes checked in the monitor setup. If the boxes had been checked, the indicator on the left would appear red on this log, and Uptrends would have issued an alert. 

Note: Uptrends bases load time on the time the test took from the request until the test completes. This time is different based on the type of monitor. The load time for a basic check is very different from the load time of a real browser check for the same URL. Learn more about the difference between basic and real browser checks.