We have awstats installed on a server running on linux + php environment site is mysql database powered.
According to our last month statistics in awstats we received a total of 56711 unique visitors. (this information is displayed on top of page under summary)
At the bottom of this statistics page we also find this information Links from an Internet Search Engine - Full list - Google 72826 - Windows Live 1895 - Yahoo! 1035 list goes on and we also have links from external sites other then search engines. Total about 100000 uniques
This is confusing cause the total number of unique visitors = 56711 and total number of visitors from search engines = 100000 + direct visits + visitors from external sites
What should we do to further investigate the cause of this.