Postroll ads are those that are introduced after a video has completed playing, and are shown before the next clip begins. Although some sites use them frequently, they are not usually the most effective type of ad, as most users tend to leave the site as soon as they finish the content.
They represent the type of video ad with the lowest conversion rate, but they can be effective in some cases. This occurs when users view videos through playlists, where they intend to want to continue consuming content.
However, it is important to know how to establish a clear difference between preroll and postroll ads in this context. When autoplay is activated and the user finishes watching a video, it is common to confuse the preroll ad of the next one with a postroll one.
