: Why is RPM for mobile is much less than RPM for desktop in Google Adsense? I have about 50% of my website's traffic on mobile devices (iOS and Android.) The RPM for mobile is much worse

@Megan663

When your RPM is so low for mobile devices, it is a sign that your site does not display well on mobile devices. To improve the RPM for mobile devices:


Show a page that is only as wide as the mobile device.
Use the viewport meta tag to prevent your site from showing zoomed out with tiny text: <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
Use ad units sizes that have lots of inventory yet still fit on mobile screens: 320x50 and 300x250
Like desktop, figure out where on the page to place your advertisements so that they get noticed. I tend to use a 320x50 near the top of the page (but not the very top) and a 200x250 unit interspersed with the content.


This does require some development work to make mobile devices work well with your site. I do this with user agent sniffing and rewriting the page server side. AdSense recently released responsive ad units so that you could change your ad sizes using responsive design as well.

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