This monitor ensures that the response time of a remote HTTP requests to an Apache Virtual Host is within the expected range.
An unhealthy state for this monitor indicates that the response time for the Virtual Host is slow.
Some of the problems that could affect the state of this monitor are the following:
High load on the Apache HTTP Server
Network congestion between the monitoring server and the Apache web site
Slow performance of the web applications
Confirm that the configuration of the monitor is appropriate for the virtual host. Review the alert context for detailed data about the request. Investigate performance of the website locally and from other access points.