Urchin is a web statistics analysis program developed by Urchin Software Corporation. Urchin is used to analyze web server log file content and display the traffic information on that website based upon the log data. Sales of Urchin products ended on March 28, 2012.Urchin software can be run in two different data collection modes: log file analyzer or hybrid. As a log file analyzer, Urchin processes web server log files in a variety of log file formats. Custom file formats can also be defined.