The growth of World Wide Web and technologies has made business functions to be executed fast and easier. E-commerce has provided a cost efficient and effective way of doing business. In this paper the importance of e-commerce web applications and how Internet of Things is related to e-commerce is well discussed. In the end-user perspective, the performance of e-commerce application is mainly connected to the web application design and services provided in the e-commerce website. A grading system is used to evaluate the performance of each e-commerce website.