How to Use Google AdSense Ads on your Responsive Website

Google has also officially recommended that website owners use the responsive design approach instead of maintaining separate mobile and desktop website as responsive design “keeps your desktop and mobile content on a single URL.”

Responsive Google AdSense Ads

If you been using Google AdSense Ads on your responsive website, you may have noticed that, unlike your content, Google AdSense ads have a fixed width and they will not shrink or expand based on the screen size of the visitor.
For instance, if you are using the standard 728×90 leaderboard unit on your website, the ad unit may extend well beyond the screen if someone is viewing your website on a mobile phone that can only accomodate 320 pixels.
Google AdSense Ads aren’t responsive by default but there’s a simple JavaScript based workaround that will make your Google Ads respond to the screen size. Best of all, the Google AdSense team has officially approved our Responsive Ads technique.
Before we dive into the code, please take a look at this demo page.

Ads by Google Dash Designs www.dash-to.com
Website and Mobile App Design Quality, Speed and within budget

The demo has exactly one AdSense unit above the fold but the size of the unit will vary depening on visitor’s screen. If you are viewing the demo on a widescreen, you’ll see a leaderboard ad while a mobile user will see a medium rectangle or even a 180×90 link unit depending on the screen resolution.

Making Google AdSense Ads Responsive with JavaScript 

1.             <!-- You can add multiple Adsense Ad units -->

2.             <!-- Just change the ad on Line #4 and Line #7 -->

3.              

4.             <div id="google-ads-1">

5.              <script type="text/javascript">

6.              

7.                       adUnit   = document.getElementById("google-ads-1");

8.                       adWidth  = adUnit.offsetWidth;

9.              

10.                    /* Replace this with your AdSense Publisher ID */

11.                    google_ad_client = "ca-pub-1234567890";

12.           

13.                    if ( adWidth >= 768 ) {

14.                      /* Leaderboard 728x90 */

15.                      google_ad_slot    = "AAA";

16.                      google_ad_width   = 768;

17.                      google_ad_height  = 90;

18.                    } else if ( adWidth >= 468 ) {

19.                      /* Banner (468 x 60) */

20.                      google_ad_slot    = "BBB";

21.                      google_ad_width   = 468;

22.                      google_ad_height  = 60;

23.                    } else if ( adWidth >= 336 ) {

24.                      /* Large Rectangle (336 x 280) */

25.                      google_ad_slot    = "CCC";

26.                      google_ad_width   = 336;

27.                      google_ad_height  = 280;

28.                    } else if ( adWidth >= 300 ) {

29.                      /* Medium Rectangle (300 x 250) */

30.                      google_ad_slot    = "DDD";

31.                      google_ad_width   = 300;

32.                      google_ad_height  = 250;

33.                    } else if ( adWidth >= 250 ) {

34.                      /* Square (250 x 250) */

35.                      google_ad_slot    = "EEE";

36.                      google_ad_width   = 250;

37.                      google_ad_height  = 250;

38.                    } else {

39.                      /* Ad Link Unit (200 x 90) */

40.                      google_ad_slot    = "FFF";

41.                      google_ad_width   = 200;

42.                      google_ad_height  = 90;

43.                    } 

44.           </script>

45.           

46.           <script type="text/javascript"    

47.             src="http://pagead2.googlesyndication.com/pagead/show_ads.js">

48.           </script>

49.          </div>

To get started, create multiple ad units (say 768×90, 468×60 and 300×250) inside your AdSense dashbaord and replace the relevant google_ad_client (ca-pub-1234) and google_ad_slot (AAA, BBB, etc.) identifiers in the code with your own values.

Next, copy-paste the above snippet anywhere on your web page and, based on the size (resolution) of the user’s device, the most appropriate AdSense Ad format will get served automatically. If you wish to include multiple AdSense ad units on the same responsive website, just use the same snippet of code but increment the ID (line #4 & line #8) such that they read google-ads-1, google-ads-2 and so on.