I run a number of products on adwords and i see editors visting my site almost daily. I also see them reviewing my sites that do not run on adwords and here is how you identify them. If you are using PIWIK you can see users arriving to your site in real time. Usually these editors will be displayed as arriving from the USA but they could be from anywhere really. Here is a G editor (manually reviewing) my adwords landing page for the 100th time. If he leaves my site and is successful it means iv passed yet another landing page audit for adwords Code: http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&ved=0CH4QFjAA&url=http%3A%2F%2Fmysite.org%2Fmypage The important part is cd=1&ved=0CH4QFjAA when broken out shows ed=0CH4QFjAA editor ='s 0CH4QFjAA All editors have a weird character identity. You can also search your logs for a manual review. You will be shocked how often they are snooping around.