The CPU load depends on the amount of time a web server spends executing a script every time a visitor opens a webpage on a given script-driven site. Static HTML Internet sites use barely any CPU time, but it is not the situation with the considerably more advanced and functional scripts, which use a database and display dynamic content. The more people open this type of a website, the more load shall be generated on the server and if the database is big, the MySQL server will be loaded too. An example of what may cause high load is a web-based store with a huge number of products. If it's popular, a lot of people will be browsing it simultaneously and if they look for items, the whole database containing all the products shall also be continuously accessed by the script, which will result in high load. In this light, having CPU and MySQL load statistics can provide an idea of how the site is doing, if it has to be optimized or if you just need a more effective website hosting solution - if the Internet site is very popular and the existing setup cannot deal with the load.