I have a client that operates 8 different websites in the agriculture field, focused on Illinios. I ran all 8 URLs through the Google AdWords Keyword Tool to discover suggested keywords to optimize the sites for. All the suggested query terms seemed relevant for 7 of the sites.
But on their main website, the keyword suggestions are irrelevant to the content of the website. According to Google AdWords, they think the organization is selling birth control and bathtubs to Canadians.
I did on site search for "birth control" and "bathtubs" and "Canada" and got no results. So it does not seem to be a web content problem.
What could possibly be skewing the results in this bizarre manner?
My best guess right now is some disgruntled ex-employee put in some hidden text, but even that scenario seems far-fetched.