YouTube is turning on the post-roll ads by default for all the videos that are qualified to serve ads. YouTube states that the post-roll ads are now activated on all the monetized videos.
Statement By YouTube
“For monetizing creators, any video over 10 minutes in length will automatically have post-roll ads turned on by default.”
A monetizing creator refers to someone who has been accepted into the YouTube Partner Program (YPP). The creators who are a part of the YPP can run ads in their videos and get a cut of the revenue on the basis of how many views the ads receive.
Creators can further select to have any sort of combination of these ad types when uploading a video that is longer than 10 minutes in length. As the post-roll ads are turned on automatically by default, creators do have the option to turn them off at any time.
Should You Keep The Post-Roll Ads On?
Considering the post-roll ads are served right after a video has been viewed, they are like the less intrusive ad type that YouTube offers. However, you may run the risk of exhausting your audience if you have post-roll ads turned on in addition to mid-roll and pre-roll ads. You can go with the default setting and allow uses to let you know if it is too much advertising in the comment section. This could be beneficial for the advertisers if a lot of creators leave post-roll ads on. If the post-roll ads become popular on YouTube then advertisers may benefit by making unique ads for this format.
Post-Roll Ads Specifications
Post-roll ads are limited to Snapchat and YouTube and are less common than either mid-roll or pre-roll ads. Post-roll ads have the same specs that are clocking in between 12 seconds and 3 minutes in length. Short post-roll ads are usually recommended as they are the most skippable ad type as the users are not likely to wait and watch after the content they were watching has finished playing. Advertisers need to get their message in as little time as possible. In conclusion, keep it short, create a sense of urgency, encourage viewers to click with a call-to-action.