Loading page sensor shows that takes too long, but browsing to the website from a workstation does n

graph http-sensor loading-time

I have multiple sensors in our instance of PRTG to monitor websites, but there is a question that rose when looking at the data in the graphs for one of the sensors. When looking at the information of the 30 days graph, looks like the loading page time incremented from 176 msec to 5,469 msec in one day and has been like that for more than 15 days. When testing the URL for the website itself on the browser at my local computer, it loads pretty quickly; it does not really take more than 3 seconds to load. Are there any factors besides the number of sensors that I have on PRTG to look at, to come up with an explanation for this issue?

Thanks in advance.

Created on Nov 20, 2012 3:46:32 PM by Virginia (0) ●1

6 Replies

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Hello,

what exact type of HTTP Sensor is it in this case? What is the scanning interval for this sensor?

best regards.

Created on Nov 20, 2012 4:58:29 PM by Torsten Lindner [Paessler Support]

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It is the HTTP advance sensor, and the scanning interval we have for all the website sensors is 60 secs.

Created on Nov 20, 2012 5:05:00 PM by Virginia (0) ●1

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Okay, that should be fine, but how is the loading time of the website from the PRTG host machine?

Created on Nov 21, 2012 1:44:12 PM by Torsten Lindner [Paessler Support]

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Using the browser in the prtg host server it takes about 3 sec max.

Created on Nov 21, 2012 2:35:06 PM by Virginia (0) ●1

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One more question, how does prtg load pages, does it clear cache everytime?

Created on Nov 21, 2012 8:42:55 PM by Virginia (0) ●1

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The problem seemed to be the website being redirect, adding "https" to the URL instead of the "http" in the sensor setting solved the problem. Thanks for the help.

Created on Nov 27, 2012 9:43:43 PM by Virginia (0) ●1