“Active Window Surfing”
The “Active Window Surfing” feature is a classic PTC Surf Ad where you are supposed to watch an advertisers site in a frame. adBTC opens a frame where you can see the timer running down. After the timer runs down you will see a simple Bot verification which you have to prove right. Also, you are forced to watch these ads as if you leave them the timer will stop and not count down completely &
you have to start again from the beginning.