Please note the following specifications.
Please note that from now on (May 2016) all campaign components (script, iFrame, redirect tags, agency tracking pixels and other externally hosted resources) must be delivered as HTTPS-compatible components in order to rule out display and measurement errors relating to violations of security settings of the various browsers across websites.
To do this, ensure that all resources are hosted on SSL-certified servers. Please therefore check whether the systems you use for hosting the advertising material provide this option in a standardised way.
The purpose of this measure is to support the developments of the Internet Engineering Task Force (IETF) and the increasing importance of HTTPS-compatible advertising resources.