Every time a visitor opens your Internet site, the Internet browser sends a request to the server, which in turn executes it and supplies the required data as a response. A basic HTML site uses minimal resources as it is static, but database-driven platforms are more requiring and use a lot more processing time. Every page that's served produces two kinds of load - CPU load, which depends on the length of time the hosting server spends executing a specific script; and MySQL load, that depends on the number of database queries created by the script while the end user browses the website. Greater load shall be created if a considerable amount of people surf a particular site concurrently or if numerous database calls are made at the same time. Two good examples are a discussion board with a huge number of users or an online store where a customer enters a term inside a search box and a large number of items are searched. Having comprehensive stats about the load your site generates will enable you to improve the content or see if it is time to switch to a more powerful sort of web hosting service, if the Internet site is simply getting extremely popular.