#1 (permalink)

Hello, I wonder if anyone can shed light. I have a disparity between what my log files tell me are impressions and what the CPM networks say I deliver for ads.

For example my Deep Log Analyzer tells me I had 294,434 page views in Dec, after discounting spiders and other automated stuff I was left with 122,386.

These impressions were then made available to the Value Click CPM network yet in Dec they say they only delivered ads to 31,395 impressions.

Am I missing something?? Help please

#2 (permalink)

Yes you are. For a start VCM is likely to not 100% full your ad space so it's better to join a few networks and then chain them. Put your highest earning network first followed by the 2nd highest earning.

I use Casale as the first network in my chain and then VCM as my 2nd. I've given you some quick information about Casale so that you know more about it with a small review.

Doing this will mean you will have a larger fullrate instead of just displaying VCM's public service ads when they have now ads to show. Also, don't forget that some people may have javascript disabled, which is normally not very many, but it may still not a few impressions of, also not all spiders are probably listed in your log analyzer.

Good luck.