Case Study: Drecom achieves detection of ¥6M in ad fraud and improved ROAS with Spider AF

Million Yen Worth of Damage From Ad Fraud

Drecom, a games, advertising, and web company, faced significant ad fraud that was hidden in black boxes and costly to investigate. Before deploying SpiderAF, Drecom could not visualize different fraud types, spent excessive man‑hours on root‑cause analysis, and discovered that roughly 55% of its monthly ad spend (about ¥6 million of a ¥10 million budget) was fraudulent.

By implementing SpiderAF, Drecom gained clear visualization and scoring of suspicious activity (time distributions from click to install, hourly/minute/second patterns), enabling targeted countermeasures and faster analysis. As a result, Drecom improved fraud protection accuracy, boosted ROAS, reinvested the detected ¥6 million into more effective media, and shortened advertising payout collection from three months to two months thanks to SpiderAF.

Drecom

Kondo

Production Group