Answer:
Database
Explanation:
A website or web application is a page or a collection of pages addressing the same information on the internet. Web pages and the whole web application is made by a web developer using tools like HTML, CSS, Javascript, Flask, react.js, etc.
All websites or applications require a fast, flexible but secure source of storage to hold information. This storage is called a database. Examples of databases are relational and non-relational databases.
