Google has redefined the specifications for bumper ads through recent changes on the official Google Ads help page. Bumper ads, now required to be between 5 and 6 seconds long, used to be labeled simply as ‘6 seconds or shorter.’
This adjustment impacts creative teams producing ads shorter than 5 seconds. The help page update specifically notes that bumper ads are non-skippable video ads with this new length duration, which play before, during, or after another video.
Read the official help page here: About video ad formats.
This update was spotted by Hana Kobzová.