To qualify for an additional 15% of your game’s ad revenue, the game cannot be hosted on any website beyond Kongregate.com, with the exception of your own personal site. Games sponsored by Kongregate also qualify for this bonus when they're uploaded elsewhere.
Even if you’re receiving an exclusivity bonus from Kongregate, you still hold the complete rights to your game. However, you must modify your account settings and deactivate the exclusivity bonus before you upload your game elsewhere. This can be done in your profile settings.