This Insight is pulled directly from your Google Analytics "All Pages" report.
If you are seeing pages here that don't make sense, you may have a referral spam issue. Here's how to check for that:
Take a look at your Hostname report in your GA account (screenshot below for reference), you should recognize all of these hosts. If not, then you have a referral spam issue. This report shows you all of the sites that have your google analytics code on it. Either by accident or done nefariously by spammers.
Unfortunately, we don't have a fix for it since it's not a Dasheroo issue, but if you search for "Google Analytics referral spam" you will find some tactics that my help.