I have a test page on my website that is taking considerably longer to load this wek than last week, and I'm not sure why. I want to add a test to Nagios that times the loading of the entire page, not just the HTML code, and run that against all my web servers. The standard check_http plugin seems to do only the HTML code. Is there a plugin that will time the code and downloading of all the images? Or is there a third-party solution for my problem?