Product
Yahoo! JAPAN Ads Display Ads (Auction)
Summary
We will start delivering overlay ads on the Yahoo! JAPAN Top Page (smartphones (web) and PC) for Display Ads (Auction). You will be able to expand delivery opportunities and increase impressions. See the following details.
Schedule
After December 17, 2025
Sample

Available ad types and formats
- Banner (image)
- Aspect ratio: 16:5
- Aspect ratio: 32:5
- Responsive (image)
- Aspect ratio: 1:1
- Aspect ratio: 1.91:1
- Dynamic display
- Text
Summary After January 2026
* We will announce the specific schedule once it is determined.
Sample

Available ad formats
- Banner (image)
- Aspect ratio: 728:90
- Responsive (image)
- Aspect ratio: 1:1
- Aspect ratio: 1.91:1
- Dynamic display
- Text
Notes
- You can’t apply delivery or exclusion settings for overlay ads using placement targeting. As a result, you can’t specify separation from timeline ads or exclude only overlay ads.
- The delivery start date may change.