In <head> Section

Data layer information

In data layer publishers need to define:

contentType
channel

Also a publisher can share custom key-values via a data layer.

contentType

This parameter is predefined. A publisher can select out of four options. You use it to describe the type of a subpage which the user has visited.

homepage
channel
article
gallery
interactive
usergenerated

Example:

· homepage -> Start page

Example: https://www.haus.de/

· channel -> Overview page (navigation) like Bauen, Modernisieren, Garten, etc.

Example: https://www.haus.de/bauen

· article -> Article on your page

Example: https://www.haus.de/bauen/notwegerecht

· gallery -> Is used when you want to work with image galleries and ads.

· interactive -> Is used for interactive content. E.g. part of the web site where the user interacts with the site and you want to sell that content separately.

· usergenerated -> Is used for e.g. a forum where you have user generated content.

channel

This parameter is defined by the publisher. It describes on which webpage the user stays. It can describe section/channel with custom names. Along with contentType it is used to describe ad slots in a more detailed way.
In general the channel reflects the main navigation of your page. Sub navigation can be passed via atf-targeting with a key channel. For details please refer to topic Passing custom key-values to GAM

Screenshot:

Example of data layer information:

<script type="text/javascript">
           window.dataLayer = window.dataLayer || [];
           dataLayer.push({ 'atf-contentType': 'channel' });
           dataLayer.push({ 'atf-channel': 'fashion' })
 </script>

If a channel cannot map the main navigation as for example tag pages (Tag pages are often used to summarise content on specific topics or keywords. All article with a specific tag appear on the corresponding tag page) the channel should be designated as no-channel and bundle all pages in it.

In this example we have the Tag page makeup-pflege which is assigned to the channel: no-channel (see console below right, underlined red)