Green Card News, operated by Green Card Co., Ltd., is a sports website for amateur soccer across Japan. With 900,000 unique users and 5 million page views per month (as of May 2025), they provide match results quickly and transparently, helping to build and connect amateur sports communities across Japan.

The challenge

With ad revenue in decline due to softened cost-per-click and corresponding market conditions, Green Card struggled to invest in new content and grow their business. Since standard ad optimizations were no longer enough for them, they sought a new solution to expand their monetization options to drive revenue growth.

The approach

Though initially concerned about the impact on user experience, the team piloted Offerwall with AdSense. After a few weeks of testing they implemented rewarded ads powered by Offerwall, which gave their loyal readers the choice to fund content through ads. This change propelled their ad revenue to an an all-time high while maintaining key user metrics like bounce rate.

The results