Adsense for website that require user login

[anobe]

Our site required user login, and lately I've notice that adsense crawler is not crawling our site; thus, giving us irrelevant ads.

I've edit my php pages so that whenever users are not logged in, php will create a page to notify the user that he/she is not logged in. That page will contain the correct meta keywords + descriptions of our site.

After doing so, adsense is giving us relevant ads again.

But the question is...Can I do that? Does it violate the Adsense's policy?

[techygeek]

Yes. IT does violate.

[incrediBILL]

Your web pages are behind a login.

At this time, pages that require a login can not be easily visited by our crawlers. Additionally, since these types of pages are not easily visited for approval and it is difficult for our AdSense specialists to verify that pages behind a log in follow Google AdSense policies, we are unable to offer support for these pages.

[google.com...]

Doesn't say they violate TOS, says they aren't supported.

Read into that what you want.