Updates
January 29, 2026: We updated the article due to the launch of the Yahoo! JAPAN Top Page for PC.
January 20, 2026: We updated the schedule for the Yahoo! JAPAN Top Page for PC.
December 18, 2025: We updated the article due to the launch of the Yahoo! JAPAN Top Page for Smartphones (web).
December 3, 2025: We announced this information.

Product
Yahoo! JAPAN Ads Display Ads (Auction)

Summary
We started 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.

Yahoo! JAPAN Top Page for Smartphones (web)

Date
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

Yahoo! JAPAN Top Page for PC

Date
January 28, 2026

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.