An access log features a record of all files that have been requested by the visitors while surfing around your Internet site. The list is comprehensive, so when you have a webpage with two embedded images, for instance, all of the three files shall be in the log, not just the page. An access log usually contains the date, the OS, the browser and the IP address for every single file in human-readable form, so you can get a more complete picture about the most popular files on your Internet site. The log, which is also frequently referred to as "raw data", is an addition to the web stats that you commonly get with a hosting account, not an alternative. A good example why you may need this sort of a log is if you intend to use some software on your personal computer to prepare a report about the website’s general performance, but you do not want to use the typical graphs and tables which come with the server-generated web statistics.