MOTA Identifies Tens of Millions of Yen in Annual Ad Fraud Risk and Improves Ad Operations with Spider AF

Spider Labs Inc. announced a new case study for its ad fraud prevention tool, Spider AF, which has the No.1 cumulative number of domestic corporate deployments in Japan. The case features MOTA Inc., a company promoting digital transformation in the automotive and real estate sectors under the mission of “bringing more fair trade to the world.” As its advertising spend expanded, MOTA conducted a free Spider AF diagnosis to improve advertising budget transparency and ROI. The diagnosis revealed fraudulent clicks far exceeding expectations by dozens of times, along with potential annual damage amounting to tens of millions of yen. After implementation, MOTA improved CPA by detecting and blocking fraudulent clicks. The company also submitted fraud logs as evidence to Yahoo! Ads and received approval for a refund of several hundred thousand yen in the first month of deployment. Although MOTA had been aware of ad fraud before adopting the tool, it had assumed that only a few hundred low-value fraudulent clicks occurred each month. The free diagnosis showed that the actual volume was many times higher, and that fraudulent clicks were present not only in social and display ads but also in search ads, one of the company’s major investment areas. MOTA selected Spider AF after comparing multiple ad fraud prevention tools, including overseas products. Key factors included the reliability and support of a Japan-made tool, an easy-to-use dashboard that allows users to grasp fraud status at a glance without specialized knowledge, advanced identification logic designed to prevent excessive blocking, competitive pricing compared with overseas tools, and simple integration with advertising accounts. Following the deployment of Spider AF, MOTA began blocking fraudulent traffic from the first month and saw healthier ad operations. Removing invalid traffic also contributed to CPA improvement. In addition, by submitting fraud logs extracted from Spider AF to Yahoo! Ads, MOTA received a refund of several hundred thousand yen in the first month, demonstrating value not only in detecting and blocking fraud but also in directly recovering part of lost ad spend. Spider AF Ad Fraud Protection detects and blocks ad fraud, which occurs to some degree whenever online ads are placed. Ad fraud refers to the fraudulent inflation of web ad impressions or clicks to extract advertising fees. It accounts for an average of 5.1% of ad spend and can reach as high as 51%, while remaining difficult to detect, making regular monitoring necessary. Spider AF enables automatic detection and blocking simply by installing a tag, offers free damage assessments, and is widely used by ad network operators, agencies, and advertisers.