After upgrade to 1.9.1 version I've noticed that Pageviews dropped, while Searches increased! Pageviews is now other then Visits, how this can be true? Keywords: pageviews visits
Attachment: Visits vs Pageviews graph shows hudge decreace in Pageviews after upgrade. views_vs_visits.png
Attachment: Pageviews dropped while Searches increaced. views_vs_visits_vs_searches.png
Some more info: website is built with Drupal 6.26 using Piwik Web analytics 6.x-2.2 module.
Please go to Settings > Websites and then remove from the list of "Global Search Keywords" the keywords parameter that your website uses in the URL. I should probably add FAQ for this.
Yes, that was it. Removed "q" keyword and now it's working as it was before. Thank you!