What is the Traffic light in Coop frame?
"What is the Traffic light in Coop frame?"
The traffic light in the Coop frame indicates if the advertiser has earned credits from displaying it or not. It starts as a red traffic light. The Coop link needs to display for at least 3 seconds for the advertiser to earn credits, so after 3 seconds the red traffic light will turn green and the advertiser is credited.
If your website comes up in another person's Coop link that is advertised in a source with a timer that is less than 3 seconds, you don't lose any credit for displaying your website (and they don't earn any credit).