AMP is an open-source initiative to improve the mobile web experience by allowing web pages to load instantly on mobile devices.

In order to track your AMP articles please implement the following script on every AMP page:

<amp-analytics config="https://1e32b3109a3889d6eb04-114932bc2bae9698d2e445432680b599.ssl.cf1.rackcdn.com/amp.json">
    <script type="application/json">
        {
            "vars": {
                "id": "ID",
                "postid": "POSTID"
            }
        }
    </script>
</amp-analytics>

id parameter has a fixed value for a single domain.

postid must match _ain.postid value from the desktop version of an article.

Once AMP tracking has been implemented, you will be able to see google-amp as a new referrer.

AMP referrer URLs will show various sources of AMP traffic.

Notes:
At the moment AMP data is excluded from the Engagement and Loyalty CPIs, in order to prevent a significant impact of AMP traffic on those components.