■Updates
October 4, 2022: This change has been released.
September 1, 2022: Changed the end date of the transition duration.
　　　　　　　　　Before: September 1 (Thu)
　　　　　　　　　After: October 3 (Mon)
July 19, 2022: Announced this information.

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We have changed the IP addresses of the crawler used for Dynamic Ads for Display of Display Ads (Auction).
Please see the following details.

1. Product:
　Yahoo! JAPAN Ads Display Ads (Auction)

2. Overview:
　We have changed the IP addresses of the crawler that receives the uploaded files through periodic updates
　(scheduled by FTP) for item lists of Dynamic Ads for Display.
　If you are using periodic updates and have added the IP address to allow list, add the new IP addresses after
　the change.
　Details are as follows.

・IP addresses to be changed
　[Before]
　114.111.127.0/26
　114.111.127.64/27
　[After]
　203.216.252.128/26

・Transition duration
　July 19 (Tue) - October 3 (Mon), 2022

　During the transition duration, the crawler may access using IP addresses both before and after the change.
　After the transition duration, the crawler only using the changed IP addresses will access.
　Add the new IP addresses to your allow list within the transition duration.

3. Notes:
　If you want to remove the IP addresses before the change from your allow list, remove them after December 1, 2022.

4. Remarks:
　Learn more about details on the following help pages.
　Upload Item list file and Update Item list