Before you can view application page
load times, you need to create an HTTP Analytics profile that is logging statistics
internally on the BIG-IP® system. In the profile, the
statistics-gathering configuration must have Page Load Time
selected as one of the collected metrics. The Analytics profile also needs to be
associated with one or more virtual servers, or an iApps®
You can view page load times on the
Page load time
is how long (in milliseconds) it takes from the time an
end user makes a request for a web page, until the web page from the application server
finishes loading on the client-side browser.
Note: End user response times
and latencies can vary significantly based on geography and connection types.
On the Main tab, click
The Overview screen opens and displays current HTTP statistics averaged
over the last hour. On the screen, you can see time controls on the top, charts
on the left, and a list of dimensions on the right.
Scroll down to the Avg Page Load Time chart.
The chart shows the average page load time for all applications and
virtual servers associated with all Analytics profiles.
To view page load time for a specific application, from the dimensions on the
right, expand Applications and select only that
The chart shows page load times only for the selected
To see more detailed page load time statistics for any expanded dimensions,
click the handle at the top of the dimensions column,
Tables containing detailed statistics for the items in the dimensions
In the table, hover over the headings to see the full names of the columns, and
view the data.
Pa shows the average page load time in
Pa shows the maximum page load time in
To view page load times for a specific virtual server, from the dimensions on
the right, expand Virtual Servers and select only that
You can clear all filter selections or those for a dimension.
- To clear all selections,
click the gear icon at the top of the column and select Clear
- To clear selections for a
dimension, click the options icon (three horizontal lines to the left of the
title), and select Clear Selection.
If further investigation is needed, select other dimensions to show page load
times for other entities, for example, specific pool members, URLs, countries,
or client IP addresses.
Tip: If you are concerned about maintaining a high level of user experience
and productivity, you can configure the Analytics profile so that it sends an alert
when the average page load time exceeds a number of milliseconds for some period of