google Adsense spider

[dirkfirst]

I constantly see this spider on my site. I can understand that it is looking at pages with adsense on it but what kind of data is it collecting and what is its purpose?

It is like google doesn't trust the sites that display its ads so it baby-sits them.

[Jordan]

Usually the spider visits your page immediately after the adsense script has been installed on a new page. It collects data on your page to determine what kinds of Ads to show.

[TcM]

Yes, and after Adsese was installed and the spider crawled my pages then I rarely see it again! (if ever again)