If you have an HTML site, it likely uses a really small amount of system resources simply because it's static, but this isn't the situation with dynamic database-driven Internet sites that use PHP scripts and offer you a lot more features. This sort of Internet sites generate load on the web hosting server every time somebody browses them, because the web server needs time to execute the script, to access the database and then to provide the information requested by the visitor's web browser. A widely used discussion board, as an illustration, stores all usernames and posts inside a database, so some load is generated any time a thread is opened or a user searches for a given name. If a lot of people connect to the forum at the same time, or if each and every search involves checking a large number of database entries, this could produce high load and affect the functionality of the Internet site. In this regard, CPU and MySQL load data can present you with data about the site’s functionality, as you can compare the numbers with your traffic data and see if the Internet site has to be optimized or transferred to another type of hosting platform that will be able to bear the high system load in the event that the Internet site is very popular.