Whenever a visitor opens your Internet site, the web browser sends a request to the server, which in turn executes it and gives the desired information as a response. A basic HTML site uses minimal system resources for the reason that it's static, but database-driven platforms are more demanding and use much more processing time. Every page that is served produces two forms of load - CPU load, that depends on the time the server spends executing a specific script; and MySQL load, that depends on the total number of database queries produced by the script while the end user browses the Internet site. Higher load shall be generated if many people browse a particular Internet site simultaneously or if many database calls are made simultaneously. 2 illustrations are a discussion board with a large number of users or an online store where a client enters a term inside a search box and thousands of items are searched. Having in depth stats about the load your website generates will help you improve the content or see if it's time to switch to a more powerful type of website hosting service, if the site is simply getting very popular.