A text overlay ad is a text-based ad that appears together with video content on websites in the Google Display Network. These ads are usually shown inside the video player or in the lower portion of the video while it is playing.
Text overlay ads are created in the same way as regular text ads. When a campaign is eligible to appear on video placements within the Display Network, Google can automatically show the text ad as an overlay on video content.
This ad format is mainly used to increase brand awareness and capture attention while users are watching videos. Because video content often has high engagement, text overlay ads can be an effective way to reach audiences in a more visual and interactive environment.