March 18, 2025: We updated the document.
February 26, 2025: We announced this information.

Yahoo! JAPAN Ads Display Ads (Auction)

Starting April 14, 2024
*This date is subject to change.

We will implement feature enhancements in site retargeting using IP address information from SoftBank devices.
The recent web browser situation has led to a decline in the delivery of ads using site retargeting and the difficulty in measuring the effectiveness of ads.
By using IP address information from SoftBank devices, you will be able to deliver ads using site retargeting to users of these devices. You can expect to increase ad delivery volume and improve delivery accuracy.
This change will apply to Display Ads accounts after the scheduled date. No action is required on your side.

Impact on external transmission regulations (Telecommunications Business Act)
This feature will send your website user data to SoftBank Corp. through the site retargeting tag. As a result, companies subject to external transmission regulations under the Telecommunications Business Act must mention this on their websites.
Download the following document for details.

If you don't want to use IP address information from SoftBank devices, modify the site retargeting tag.
Download the following document for details.
Download document

Site retargeting targets internet users who have visited specified websites to deliver ads. See the following help page for details.
Deliver ads to website visitors (site retargeting) [Auction]