Responsive Fixed-Size Ad vs Non-Responsive Fixed Size Ad CPC

[slobizman]

If I have a responsive ad that dials down the size on mobile (with @media), but on the desktop (or ipad) the @media statement forces a Large Rectangle, will that Large Triangle on the desktop be looked at by Google (in terms of what ads to put in and what CPC they pay) as exactly the same as if I had instead run a non-responsive Large Triangle?

[james007]

If you have chosen a 300x250 rectangle in your responsive CSS, AdSense will treat it exactly as if you specified a fixed ad of 300x250.

My experience with responsive ads is to let Google do the sizing itself for mobile. I'm often discovering that Google will turn a 728x90 horizontal banner into a 300x250 rectangle on mobile (this happens about 60% of the time), and if it's doing that, it's because AdSense thinks it can make you more money that way. My advice, therefore, is for mobile to set the size as (something like) "width:100%;height:auto;" and let AdSense fill that space with whatever it can sell.

[slobizman]

Thanks for the reply. Much appreciated.