I have an Ubuntu server hosting several websites, some Wordpress some just plain HTML, but every single page has the exact same Google Analytics script on it when I view the source in a web browser. I cannot figure out how this is being added to every single site, since some of them are just one HTML page. If you view the source and look at the bottom (just before the ending body tag) you'll see the script.
Here are two of the sites: https://landlinenews.com/ http://enertiadataentry.com/
Is there somewhere, maybe an Apache configuration file, that might have been modified that is adding this?