At TrafficStars, advertisers choose the CPM (Cost Per Mille) model to pay for impressions – giving them full control over costs and room to optimize for conversions. In our previous case study on a Nutra offer in India, we explores how CPA can drive results in cost-efficient regions. Now, we’re taking things to the next level. This new campaign promoted an AI tool in top English-speaking markets, with a clear performance goal: achieve an eCPA under $1.5. The campaign combined banners and popunders, PRIME traffic, and a smart optimization strategy. Let’s break down the setup, results, and key takeaways from this campaign.

AI Offer for English-Speaking Markets 

Offer: Create My AI 

GEOs: USA, UK, Canada, Australia, New Zealand 

Formats: 300x250 and 300x100 banners, popunders 

Budget: $5,000 

Goal: eCPA under $1.5 

Traffic: PRIME sources + interest-based targeting

Key Takeaways

• The combination of formats provided a strong balance: banners were profitable, while popunders delivered volume
• eCPA for both formats stayed within the target range
• PRIME traffic sources brought high-quality users
• The offer hit the market at the right time – perfectly aligned with the hype and growing interest in AI
• A clear setup and well-defined goal helped achieve fast results

Launch Strategy: AI Offer

• Started with a CPM test using multiple creatives
• Selected the ones that generated leads
• Set a CPA bid based on test results
• Integrated postback tracking before scaling
• Scaled the campaign with a focus on top-tier GEOs

Conclusion 

CPA is a powerful pricing model – when executed with the right strategy. In this case study, we explored a campaign promoting a niche AI product in English-speaking markets. The approach was clear and effective: begin with CPM testing to gather data, optimize with a CPA bid, and then scale once the model proves profitable. The results speak for themselves – success comes from getting the fundamentals right.