A landing page that automatically invokes a further pop-under or opens a new window without the user clicking the site is considered non-compliant. This is not permitted under any circumstances and will be treated and dealt with as click fraud.
If you work with an affiliate program where this user journey occurs, the Advertiser must notify the program of this. This functionality cannot exist on landing pages that the Advertiser sends traffic to, from Reporo's network.
Note: double popunders are not permitted on any network and will be classed as a compliance offence.