In most cases it is possible to filter out any Backbone, Last Mile and Mobile traffic from your analytics tools (Google, Omniture, Web Trends, etc.). There are a few different methods for this.
Requests generated by the Gomez/APMaaS monitoring solutions can be filtered out of web logs using the IP Address, User-Agent string or by not triggering the analytics tag at all.
Filtering by IP Address can only be done if the IP Address of the monitoring location is known. Because of this, filtering by IP Address is only recommended for traffic generated from Backbone testing. The IP Addresses of all of the Backbone nodes are published in the Node Manager page within the portal.
For Last Mile, there are thousands of PEERs that tests could potentially run from; therefore it is not feasible to filter all of the IP addresses. In this case, filtering by the User-Agent is recommended. By default, our testing will include ‘GomezAgent’ in the User-Agent string in the HTTP header. It is also possible to add custom values to that from within the recorder.
For Mobile monitoring, the IPs are usually generated through DHCP (Dynamic Host Configuration Protocol). In other words, the external IP is dynamically generated, rather than static, and no list of IPs is available. For this reason, filtering by the User-Agent is also recommended.
Instead of filtering it can at times be better to avoid capturing the synthetics at all. Within the synthetic script, you have the ability to ‘filter’ or exclude content from being testing or triggered. This is done by creating a new custom Action to the beginning of the script. In it, you can specific objects or even domains using ‘Contains’, ‘Starts with’ or ‘Ends with’. Please note that filtering items from the script will stop these items from triggering and being tested. This means you will not collect performance data for them.
Answer by Turnquist, G. · Sep 12, 2014 at 06:57 PM
Great post Teri,
Here are some links I have used to help people filter out Gomez traffic from Google Analytics, Webtrends, and Omniture: