If you set a DFP (Google Ads) ad / creative to display:none so it is invisible. Will it still get impressions? So say I have 31 DFP ads, one is set to display:block and the other 30 are set to display:none.. will each one of the 30 ads that are invisible get a view / impression? And say I set the 30 ads to display:none and then switch them over to display:block when the viewers browser width exceeds 600px... Will the impressions only count until the ads are turned into display:block? Or how would this whole display none with DFP situation work?
As far as I am aware, if you set the adunit to display none the JavaScript is still executed and the ad is still loaded into the page, hence it counts as an impression. I am pretty sure this will be against the Google DFP terms of service and would recommend not taking this approach.