The "Simple Search Engine" is a Java-based project that uses Java Server Pages (JSP), Servlet, CSS, and HTML technologies to allow users to search for information on the internet. The project makes use of a web crawler or spider bot to crawl the internet and retrieve relevant data from the Javatpoint website, which is then stored in a database. When a user inputs a query into the search bar, the project runs a ranking algorithm to generate the top 30 results that are most relevant to the query. The algorithm takes into consideration a number of factors, such as keyword density, content quality, and backlinking, to ensure that the results are as accurate and informative as possible.