If you have an HTML website, it likely uses a very small amount of resources due to the fact that it is static, but this is not so with dynamic database-driven sites that use PHP scripts and offer considerably more features. This sort of Internet sites create load on the hosting server when anyone browses them, as the web server needs time to execute the script, to access the database and then to provide the info requested by the visitor's web browser. A well-known discussion board, for instance, stores all usernames and posts inside a database, so some load is produced every single time a thread is opened or a user searches for a particular word. If many people access the forum at the same time, or if each search involves checking tens of thousands of database entries, this can produce high load and affect the performance of the Internet site. In this regard, CPU and MySQL load statistics can provide data about the site’s functionality, as you can compare the numbers with your traffic data to decide if the site has to be optimized or migrated to a new kind of website hosting platform that will be able to bear the high system load in the event that the Internet site is extremely popular.