google.ch is included in the list of external websites, despite being correctly listed in the list of Piwik search engines.
The URLs in the report all have the following format:
The problem is www.google.ch appears twice in core/DataFiles/SearchEngines.php
"www.google.ch" => array("Google", "q"), ... "www.google.ch" => array("Google", "as_q"),
Related ticket: #194
I added a patch to #689 that (among adding a bunch of new search engines) fixes this problem.