URL Filter Does Not Always Work

[glenv]

I have added several urls to my Adsense Url Filter and it seems to work for most. I notice one url in particular though continued to show up. I wrote to Google but have not heard back yet.

I have a small theory that I would like to ask you if you feel it is correct.

I had added all urls with the prefix "www".

The one url that continued to show up displayed "www.site_in_question.com" in the google ad that was being displayed.

I clicked on their ad to discern if I could see any variances in the url and the only one I see is when it landed on the site, the "www" was missing. So they must have submitted it without using the "WWW".

Could this be a possibilty? I sunmitted the site again as "site_in_question.com" and will watch to see what happens.

This also brings up a whole bag of questions about how the filter works. I know Google allows you to post on your Adwords ad just about any url you want, even if you are posting affiliate links. I have seen Google allow some urls displayed that are way off base. I totally disagree with this. It allows an affiliate to pretend to be someone they are not.

[europeforvisitors]

In my experience, you need to list both www.domain.com and domain.com to be sure of blocking a domain that may be advertising both ways.

[Jenstar]

example.com will get both example.com and www.example.com

However, www.example.com will only filter www.example.com, leaving example.com to display on your site.