How to Collect Consent for Google Ad Personalization

Below you’ll find the procedure valid before Google integrated the TCF v2. Keep in mind that on since 15 August 2020 TCF v1.1 is no longer supported by IAB.

Setup

First, ensure that you’ve enabled the Cookie Solution’s IAB Advertising Preferences Management option as explained here (you can enable this feature also on Cookie Solution > Edit).

Please note that the “Request new consent” option must be enabled. You can do this by going to Cookie Solution > Edit > Advanced View and selecting the relevant setting under IAB Transparency and Consent Framework section.

Finally, make sure to enable the “Google’s ad preference management” option, adding "googleAdsPreferenceManagement": true to your code snippet:

<script type="text/javascript">
    var _iub = _iub || [];
    _iub.csConfiguration = {
        "lang": "en",
        "siteId": XXXXXX, //use your siteId
        "cookiePolicyId": YYYYYY, //use your cookiePolicyId
        "enableCMP": true,
        "googleAdsPreferenceManagement": true,
        "banner": {
            "position": "float-top-center",
            "acceptButtonDisplay": true,
            "customizeButtonDisplay": true
        }
    };
</script>
<script type="text/javascript" src="http://cdn.iubenda.com/cs/tcf/stub.js"></script>
<script type="text/javascript" src="http://cdn.iubenda.com/cs/iubenda_cs.js" charset="UTF-8" async></script>

When this setting is enabled, end-users will see an additional “Google toggle” that allows them to choose between personalized or non-personalized Google ads as required.

Implementation

Now, to ensure that non-personalized ads are sent when indicated by the user, you’ll need to modify your Google scripts using the following:

_iub.cs.api.isGoogleNonPersonalizedAds()

The value is set to true where consent has not been given and false where it has been given.

The function is valorized after the consent has been given.

Please note that these instructions assume that you’ve previously set up prior-blocking for these Google services and have therefore modified the scripts as referenced below.

If you’ve instead set-up prior blocking of these scripts using Google features, jump to this section.

For Google Publisher Tag

In your Publisher Tag embed code, insert the following code snippet

<script type="text/plain" class="_iub_cs_activate">
    googletag.cmd.push(function () {
        googletag.pubads().setRequestNonPersonalizedAds(_iub.cs.api.isGoogleNonPersonalizedAds() ? 1 : 0); 
    });
</script>

between lines 16 and 17 of the After section specified here in this post.

Google Adsense

In your Adsense Async code, insert the following code snippet

(adsbygoogle=window.adsbygoogle||[]).requestNonPersonalizedAds=_iub.cs.api.isGoogleNonPersonalizedAds() ? 1 : 0;

between lines 8 and 9 of the Asynch > After section specified here in this post.

*The example above uses only the Asynchronous tag as the Synchronous tag does not support non-personalized ads. Read more about that here.

Other Implementation Methods

If you’ve instead set-up prior blocking of these scripts using Google features, you can follow Google’s instructions here (under Pausing ad requests).

You’ll need to make adjustments as follows:

1. When using Google Publisher Tag setRequestNonPersonalizedAds(1) should be replaced with setRequestNonPersonalizedAds(_iub.cs.api.isGoogleNonPersonalizedAds() ? 1 : 0)
2. When using AdSense or Ad Exchange asynchronous ad code requestNonPersonalizedAds=1 should be replaced with requestNonPersonalizedAds=_iub.cs.api.isGoogleNonPersonalizedAds() ? 1 : 0