webcache-exp-test.googleusercontent.com is appearing in adsense

[Sgt_Kickaxe]

What is webcache-exp-test.googleusercontent.com and why is it displaying my content? I haven't seen webcache-exp-test before and I have a nocache meta tag in place.

[tedster]

I don't know precisely, but it does look like it's worth tracking down to me. We already have a new thread about this strange domain (and others) in our Adsense Forum, so let's keep the discussion there:

Your ads have recently appeared on websites you haven't authorised. [webmasterworld.com]