If you have an HTML Internet site, it likely uses a very small amount of system resources simply because it is static, but this is not the case with dynamic database-driven Internet sites that use PHP scripts and provide you with way more features. This type of sites create load on the website hosting server each time someone browses them, due to the fact that the hosting server needs time to execute the script, to access the database and then to supply the info requested by the visitor's Internet browser. A well-known discussion board, for instance, stores all usernames and posts inside a database, so some load is created any time a thread is opened or a user looks for a given word. If a lot of people connect to the forum simultaneously, or if every search involves checking hundreds of thousands of database entries, this could create high load and affect the functionality of the site. In this regard, CPU and MySQL load stats can provide information about the site’s performance, as you can compare the numbers with your traffic data and see if the Internet site must be optimized or migrated to another type of hosting platform that'll be able to bear the high system load in the event that the site is popular.