<https://play.etracker.com/#/schema/logo/image/>
<http://schema.org/contentUrl>
<https://play.etracker.com/wp-content/uploads/2020/04/Logo_etracker_1-0-RGB-e1621337814937.png>
<https://play.etracker.com/docs/faq/integration-setup/kann-ich-mit-etracker-klicks-auf-downloads-erfassen/>