
We are pleased to announce that the JDirectItems Auction authenticity verification service has been fully upgraded through an expanded partnership with SUKIDUNK, a leading marketplace for second-hand fashion and collectible items in Japan. Authentication is now free of charge, with an enhanced accuracy rate of 99.97%.
Service Overview
Items on the JDirectItems Auction website marked with “Authenticity Check” will be inspected and authenticated by SUKIDUNK after the seller ships the item.Only products that meet the authentication standards and are certified as genuine will be shipped to the buyer.
With more product categories included and an accuracy rate upgraded to 99.97%, users can enjoy a safer purchasing experience at no additional authentication cost.
(Note:The 99.97% accuracy rate is based on data published by JDirectItems Auction, calculated from the total number of transactions and the number of errors found during authenticity and quality inspections between January 1, 2025, and June 30, 2025.)



Overview of Items Eligible for Authentication
The items currently covered by this authentication service include: trading cards, fashion items, accessories, and watches. Details are shown in the table below.

Service Scope


