I just installed Piwik on my Webserver and I think it is just great to see what brings people to my site.
Unfortunately, I cannot see how Piwik counts the Unique visitors since the number definitely seems to be too low.
My site is a Wordpress-Blog and I added the Piwik-script to my header. In this header I also have a counter which I programmed myself quite a time ago using PHP and MySQL.
Now this counter and the Piwik unique visitor count do differ significantly. I would first think that my counter-script was wrong since it just analyses the IP-address and tries not to count search robots.
But I have added my Blog to a syndicator site (jurablogs.com) which counts how many visitors use their outgoing links. Now everytime I post something Piwik seems does not seem to count all visitors.
An example: I added a post yesterday night and the syndicator site tells me that 21 visitors have used this link to visit my post. However, Piwik counts 9 unique visitors overall to my site today, only one of them coming from the syndicator site.
Now my own counter and the syndicator site counter tell me there are more visitors.
Does anyone know what is wrong? Should I add the Piwik-script to another page of my Wordpress-Blog?