An access log is a complete list of all the files that were accessed by the visitors of a particular site. Every single file which was requested for whatever reason will be listed, so if you have one webpage with three embedded pics, one video and one embedded text file, for instance, the access log will contain a total of six entries - one for every of the six files which were accessed when the website visitor opened the webpage. A log normally offers the file name and path, the date, along with the visitor’s Operating System, Internet browser and IP address. Sometimes you can also find the referrer Internet sites that sent the visitors to your Internet site. The data an access log file includes is in human-readable plain text format. It can also be processed by special software on a PC and used to write reports on the efficiency of a site, aside from the web statistics that your hosting server may have generated.