This article really helpful for me when doing a competitor analysis for marketing strategy!

Thanks @Girmacea

Also, I want to add something…..

In this digital marketplace, monitoring your competitors is much more than monitoring the keyword ranking, etc. It has become a far more comprehensive exercise. Each and every aspect of your competitor’s website and business requires to be monitored. As it is understandable, it is not possible to monitor it manually in a business like e-commerce wherein the prices fluctuate by the minute.

However, it is possible to monitor prices, products, product descriptions, images and everything else with a variety of website change detection tools. At present, the market is overcrowded with a diverse set of website change detection tools. There are countless tools and each tool has its own unique features and limitations.

While each tool can be useful, you will need to look at tools from the perspective of your specific needs. You will need to compare and find out the tool that suits your respective requirements.