An access log is a detailed list of all the files that were accessed by the guests of a particular site. Each and every file which was requested for whatever reason shall be listed, so if you have just one webpage with 3 embedded pictures, one video and one embedded text file, as an example, the access log shall contain a total of six entries - one for every of the six files that were accessed when the website visitor opened the page. A log usually provides the file name and path, the date, along with the visitor’s Operating System, browser and IP address. Occasionally you can also find the referrer sites that sent the visitors to your Internet site. The data that an access log file provides is in human-readable plain text format. It may be processed by special software on a PC and used to write reports on the overall performance of a website, besides the web statistics that your server may have generated.