This involves verifying that all the features and functionalities of the web app are working as intended. It includes testing different scenarios, input validations, form submissions, navigation, and user interactions.

It is important to test the web app across different browsers, operating systems, and devices to ensure it functions correctly and appears consistent across various platforms.

This type of testing evaluates the performance and responsiveness of the web app under different load conditions. It includes assessing its speed, scalability, resource usage, and the ability to handle concurrent users.

Web app security testing involves identifying vulnerabilities and weaknesses that could be exploited by attackers. This includes testing for potential security breaches, such as SQL injection, cross-site scripting (XSS), cross-site request forgery (CSRF), and other security vulnerabilities.

Usability testing focuses on evaluating the user-friendliness and intuitiveness of the web app. It involves assessing the navigation flow, ease of use, and overall user experience. Feedback from real users can be collected to gain insights into the app's usability.

Regression testing is performed to ensure that any changes or updates to the web app do not introduce new defects or impact existing functionalities. It involves retesting previously tested features to verify that they still work correctly.

Load testing involves testing the web app's performance under heavy user loads to determine its scalability and ability to handle a large number of concurrent users. It helps identify performance bottlenecks and ensures that the app can handle peak traffic without issues.

Integration testing verifies the proper functioning of different components, modules, or systems within the web app when they are combined or integrated. It ensures that the app's various parts work together seamlessly.