Video post-roll refers to a type of advertising format in which a video advertisement is played after the main content has finished. This can be seen on various online platforms, such as social media, streaming services, and websites. Unlike pre-roll ads that play before the main content, post-roll ads are shown at the end, allowing viewers to fully engage with the main content before being presented with the advertisement. This format is often used to increase brand awareness and drive conversions, as it targets viewers who have already shown interest in the main content.