When a visitor opens your site, the Internet browser sends a request to the hosting server, which in turn executes it and gives the required data as a response. A simple HTML website uses very little resources due to the fact that it's static, but database-driven platforms are more requiring and use much more processing time. Each page which is served produces two kinds of load - CPU load, that depends on the amount of time the web server spends executing a specific script; and MySQL load, that depends on the amount of database queries generated by the script while the user browses the Internet site. Bigger load will be generated if a whole lot of people surf a certain website simultaneously or if many database calls are made all at once. 2 illustrations are a discussion board with a large number of users or an online store in which a client enters a term within a search box and tens of thousands of items are searched. Having in depth data about the load that your Internet site generates can help you boost the content or see if it is the perfect time to switch to a more powerful type of hosting service, if the Internet site is simply getting quite popular.