This is a web application built with React on the client side and a suite of technologies on the server side including Express, and Nodejs. Its functionality and purpose is similar to RankMath, a Wordpress plugin. The app allows users to check on-page SEO, conduct content analysis, perform SEO tests, and more. I employed various popular technologies such as Axios, React Parser, and Styled Components to provide a smooth user experience and ensure high performance. Additionally, I integrated React Hot Toast to provide real-time notifications to users during the tests. React was the natural choice for building the client side of the application as it offers powerful tools for building UIs, and its reusability and flexibility allowed for a scalable and maintainable codebase. The server side stack was carefully selected to provide the necessary functionalities for efficient web crawling, and the integration of Axios provides an easy-to-use HTTP client for making requests.