WhosOn also watches for search engine spiders. Spider visits are listed separately giving you a more realistic view of 'real' web site activity.
WhosOn can send you emailed or SMS text alerts when any event out of the ordinary occurs (such as a user requesting an EXE file or trying to access a page that does not exist).
WhosOn is not intended as a replacement for traditional Log Analyzers. It has been designed to provide a real-time view of you web site activity, allowing you to gain a better insight into what visitors do when they arrive at your site and how long they stay.
Other features include, Ping visitor, TraceRT visitor, WhoIs lookup, view previous visits for any visitor, view top referrers. Whos On Pro includes a Web Access module allowing you to view live visitor information via any web browser or WAP mobile phone.
WhosOn uses very little system resources. It works with NCSA Common, IIS and Extended log file formats and can run on any Windows 9x/NT/2000/XP computer that has access to your web servers log files.