In performance marketing, the right bidding strategy can make or break your campaign. At TrafficStars, most advertisers use the CPM (Cost Per Mille) model — paying for impressions while keeping full control over costs and optimization.
In our previous case study, we explored how Nutra campaigns achieve profitability in emerging GEOs. This time, we’re going global — testing an AI offer in top English-speaking markets with a clear target: an eCPA under $1.5.
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 Results & Takeaways
✅ Balanced Format Mix: Banners generated stable profits. Popunders provided the needed volume to scale.
- ✅ Efficient eCPA:
Both formats achieved the target of under $1.5, proving that smart bid management can boost ads even in competitive Tier 1 markets.
- ✅ PRIME Traffic Quality:
High-quality sources delivered better user intent and conversion consistency.
- ✅ Perfect Timing:
The offer launched during peak AI interest, maximizing engagement.
- ✅ Clarity of Goals:
A defined setup, budget, and optimization process enabled 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
Tips for Promoting AI Offers
- Don’t try to “guess” – always test
- PRIME traffic + interest category = solid foundation
- Postback is a must – CPA optimization doesn’t work without it
- Don’t start with narrow conversion goals; registration or install is the best entry point
- Calculate your budget and bids based on actual eCPA
How to Boost Ads Effectively in Ad Networks
Whether you’re promoting AI tools, gaming apps, or subscription offers, these principles apply to every campaign:
- Start broad, test fast.
- Use CPM to find what converts before scaling with CPA.
- Use data, not guesswork. Let postback tracking and eCPA guide decisions.
- Combine formats. Mix banners for profitability and popunders for reach. Leverage PRIME traffic.
- Compete on top-quality spots to ensure conversions. Analyze constantly.
- Bid adjustments and optimizer tools help fine-tune ROI.
This is exactly how to optimize bids for better performance — by iterating fast and scaling what works.
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.