Accurately predict how your web site performance will scale to meet user demand from outside your firewall and from multiple locations simultaneously.
For any business to meet user demands, accurately predicting alone doesn't solve the issue. Testing and monitoring the website with respect to different applications from multiple locations and geographies from outside and within the firewall should possibly pinpoint the problem. Application performance testing on different internet speeds should also be considered when it comes to load testing and performance testing of web applications.
Web load testing will help us understand the performance of applications at peak load times. Ideally, a web site should have the capability to handle many simultaneous requests from the users be it for a large set of data or just multiple requests for small sets of data.
Web load testing is usually followed by stress testing, where the applications are tested till their threshold points in order to test their limits. This is mainly to check how a system reacts to huge loads of data at different levels and to see how it reacts to stress and its recovery from crashes.
Browser dependency of applications is also checked as different browsers have different configurations and setting, all these should be compatible with the web applications which are being used. Security checks and validations are a must when looked upon at the UI perspective.
Verification needs to be carried out to check if the bugs are fixed and any new feature added must not create a problem in the software versions being used.
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