Are some advertisers immune to filtering?

Type example: eBay

[zett]

So, I filtered ebay.com long long ago. But still I found the occasional eBay ad pointing to rover.ebay.com (as per the Preview Tool). I thought, "maybe the subdomain does not work", so I filtered rover.ebay.com. Again, to no avail. Ads for eBay (with rover.ebay.com as destination) are still showing up.

So I guess that either the Preview Tool is broken, or some advertisers/URLs are immune to filtering.

What is your experience with the Preview Tool and ads that seem to be immune?

[moTi]

there are no immune ads. with these ads you must not filter by landing page, but by redirection page. you find the redirection page by right clicking on the ad link, then select "properties" and search for the "adurl" part of the query string. then take the "example.com" part and put it in your filter. it is common, that these advertisers use several rotating redirect pages, so you have to put every single of them in your filter list.

yes this is annoying and i still wonder why we can't filter every ad by final landing page. imo nearly every ad that uses redirection is foul. namely ebay affiliates and commission junction redirects.

[zett]

Thanks, moTI, for the quick reply. After so many years, still something new every day. :-)