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Multi-screen guidelines

Optimisation for the mobile Web

Engage your users on any device

As well as having a mobile-friendly site, it's important to provide a good user experience for your mobile audience. By focusing on your mobile site's design, content and ad placements, you could help to increase user engagement. In turn, this could lead to an increase in your mobile ad revenue in the long term.


Here are some top tips to help you to optimise for the mobile Web:

Place a 320 x 100 ad unit above the fold

By choosing the 320 x 100 ad unit, you allow 320 x 50 display ads to compete to appear as well, which could lead to higher RPMs. Placing these large mobile banners on your website could also boost your earnings through increased click rates.

We recommend that you place your 320 x 100 ad unit above the fold. Our research shows that the most valuable ad position is right above the fold. For more information, see Google's The Importance of Being Seen.

Did you know?

61% of users said that if they didn't find what they were looking for right away on a mobile site, they'd quickly move on to another site. Source: What Users Want Most from Mobile Sites Today

Use the mobile-optimised 300 x 250 ad unit below the fold

The 300 x 250 ad unit is a popular ad size used by advertisers across the globe, which has resulted in a large ad supply and increased competition. This means that a well-placed 300x250 could have a higher RPM and potentially increase your earnings.

Google research has shown that a 300 x 250 ad unit placed just below the fold could generate an approximate 50% viewability rate, helping you to maximise the impact of your ad space. For more information, see Google's The Importance of Being Seen.

Did you know?

Active View data can help you to identify and maximise your valuable below-the-fold inventory. Source: The Importance of Being Seen

Decrease your mobile page load time

In a recent Google poll of 570 respondents, almost half said that their top frustration when browsing the mobile Web was waiting for slow pages to load. Now that more Google searches take place on mobile devices than on computers, having a fast mobile page is very important.

To help decrease your page load times, we recommend you:

Did you know?

40% of people will abandon a website that takes more than three seconds to load. Source: Mobile Apps: What Consumers Really Need and Want.

For more multi-screen optimisation tips, visit our Multi-Screen Implementation Guide.
Simple optimizations for your mobile site one-pager Simple optimisations for your mobile site
For more help with optimising your mobile site, download our one-pager of tips and best practices: Simple optimizations for your mobile site
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