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Sensor enables you to acquire web request data (event or log data) as well as extended measurement data.
Extended measurement data is not available to your web servers as a part of their normal operation.
The following topics are described:
Sensor enables web request data (event or log data) to be acquired and transported automatically to a central location for storage and processing for analysis. Unless you specifically choose to filter out certain types of requests and not collect data about those request types, Sensor captures data about all GET requests made of the web servers on which it is installed.
Sensor automates this data acquisition process for all GET requests that are made on your servers and has significant business and technical benefits over alternative methods of acquiring website request data. These benefits include the following:
For more information about acquiring extended measurement data, see Acquiring Baseline Measurements.
Sensor also supports the use of page tags (or embedded object requests) to acquire measurement data that is not available to your web servers as a part of their normal operation. Page tags are commonly used to measure:
Sensor collects any information placed in any GET request made to a web server that is running Sensor. Such requests may come from embedded object requests of any sort, either to simply measure that the request was made at a certain time by a certain browser or to pass other measurement data into the data collection stream so that it may be processed for analysis and reporting purposes.
Sensor provides the best of both client-side and server-side data acquisition worlds—it acquires your server-side web log data and collects client-side, third-party site, or cache-busting measurements taken by embedded object requests. In other words, Sensor acquires both the request data normally known to your web servers (server-side measurements) and any additional measurement data that you collect through the use of page tags (client-side measurements) that send their data to any web servers running Sensor. Such web servers can be dedicated to collecting client-side measurements but are not required to be.
For more information about acquiring extended measurement data, see Acquiring Extended Measurements.