Website need to be tested under the most realistic conditions. These tests should be done using the arrival rates based on actual web logs and a real user – true to life scenario. This will help determine the revenue potential.
Earlier tests might have been conducted within your environment. But website performance testing would only be effective if conducted where the end users are. Unrealistic load testing leads to unrealistic inferences. You will need true visibility into your end-user experience ensuring the success of your online business.
A big discrepancy in the page response times from different locations may point to the latency issues related to some backbones or the ten worst performing pages as the load level is increased indicating the pages causing performance bottlenecks.