Are used to track your site traffic in a specific format which can then be analyzed.
Access Logs hold information about the rights an Access Control system grants or denies over a period of time. On most systems, the detail maintained by Access Logs is configurable.
Access logs record data about who visits your site. The logs include information such as the referrer, IP address, and type of browser. You can specify the number of days logs are kept before they are deleted.