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Placement targeted ads are crippling my revenue.
AdWords advertisers will always be able to target your website directly
But placement targeted ads also compete with normal contextual ads.The overall perfomance of the placment targeted ads on my site is 3x lower compared with contextual ads.
The overall perfomance of the placment targeted ads on my site is 3x lower compared with contextual ads
You can only entirely block out placement ads by writing to Google and asking them, and I don't think you can even do that anymore.
My understanding is that you will get the highest price ads for YOUR website whether or not someone targets your website or not. The problem is not that someone is putting cheap ads on your website; it's just that G algorithm thinks that the fair price for your website is this.
Do placement ads correspond to article content like contextual ads or whether they simply get placed at random?
It is possible that wouldn't happen if the placement ads are truly competing against weaker ads and winning, but I'm not convinced this is the case
Placement targeted ads might correspond to article content or it might seem more random, though it's not. The idea is that advertisers who target your site believe there is a positive correlation between your site's theme and content and their target audience's interest. In some cases, it'll be a clear link (i.e. you are a travel site and they are selling suitcases). A less clear link might be that you have a classic rock lyrics website, and an ad for golf clubs appears. The advertiser might think that their target audience (golfers) typically listen to classic rock.
One week ago I blocked out all advertisers that targeted my site in Ad Review Center. The reason was the low performance of the placement targeted ads.