If you have an HTML website, in all probability it uses a very small amount of system resources because it's static, but that isn't so with dynamic database-driven websites that use PHP scripts and offer you a lot more features. This type of sites create load on the website hosting server each time someone browses them, because the server needs time to execute the script, to access the database and then to deliver the information requested by the visitor's Internet browser. A popular discussion board, for example, stores all usernames and posts within a database, so some load is generated any time a thread is opened or an end user looks for a given phrase. If lots of people access the forum all at once, or if each and every search involves checking a large number of database entries, this may create 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 stats to decide if the Internet site has to be optimized or transferred to a different type of web hosting platform that will be able to bear the high system load in the event that the Internet site is really popular.