An access log is a thorough list of all the files that were accessed by the visitors of a certain Internet site. Any file that was requested for some reason will be listed, so if you have just one webpage with 3 embedded graphics, one video and one embedded text file, for instance, the access log shall contain a total of six entries - one for any of the 6 files which were accessed when the website visitor opened the webpage. A log typically provides the file name and path, the date, plus the visitor’s OS, Internet browser and IP address. In some cases you could also find the referrer sites that sent the visitors to your Internet site. The information that an access log file includes is in human-readable plain text format. It can be processed by special software on a PC and used to write reports on the efficiency of an Internet site, in addition to the web statistics that your hosting server may have produced.