non-existent page

Since I have installed Wordfence strange things happen. Live Traffic lists an activity – an attempt to access a particular non-existent page – every time I log in to WordPress. It refers always to the same page, and that page actually exists. If I click on the permalink shown in the Live Traffic item I’m taken to that page with no problem. I can edit it, modify it, just like any other pages on my site.

I have another plugin named Counterize which creates nice statistics directly in my Admin Dashboard and lists all (?) access to my site. If I look at it’s Traffic History I can see another interesting stuff – again since I have installed Wordfence: Every time I log in to my site I can see two, almost simultaneous, access to my site. One to my home page with Referer ‘Unknown’, which is OK, that’s what I do. But there is another access shown just few milliseconds after that every time: an access to the same page listed in Wordfence Live Traffic with Referer Home page, and I never do this. I can’t even click so fast, the difference in the time stamp between them is 5-6 milliseconds.

What’s more, similarly strange, again since I have installed Wordfence, Counterize Traffic History always lists another extra access every time I go to a page on my site what extra access I never do. It seems wherever I go in my menu structure, an additional access to the page directly the following one in the menu structure shown in the History what I never do.

For other users such extra access never seem to happen and never shown neither by Wordfence nor by Counterize.

So I got the impression that either Wordfence (or WordPress ?) planted some sort of code probably into my database which is executed every time I access a Page. But only if I go to a Page or a Comment on my web site. If I go to a Post it never happens.

Could you help to figure out what’s going on? I can send screenshots..

https://wordpress.org/plugins/wordfence/