Whenever a visitor opens your Internet site, the Internet browser sends a request to the web server, which in turn executes it and gives the necessary content as a response. A simple HTML site uses minimum system resources for the reason that it's static, but database-driven platforms are more requiring and use a lot more processing time. Each and every webpage that is served generates 2 forms of load - CPU load, that depends on the length of time the web server spends executing a particular script; and MySQL load, that depends on the amount of database queries generated by the script while the user browses the website. Bigger load will be generated if loads of people browse a given Internet site at the same time or if numerous database calls are made all at once. Two illustrations are a discussion board with a large number of users or an online store where a customer enters a term within a search box and thousands of items are searched. Having detailed statistics about the load that your Internet site generates will allow you to optimize the content or see if it is time for you to switch to a more powerful sort of web hosting service, if the website is simply getting really popular.