The player has the ability to determine the presence of browser extensions that block ads. Just enable the
The player will determine whether the browser blocks ads and in a certain way will control the interface elements - in the settings of each element there are options
An example of such message (don't forget to enable AdBlock)
In the JS API there is a request that returns the presence of AdBlock. Also this event available for the Google Analytics which helps you to collect data of plays with blocked ads.
All these options are available in the full version of the builder PRO