AI-Powered Performance Marketing
Stell Media runs AI-powered performance marketing for ecommerce brands that want profitable growth, not just more clicks. We manage Google Ads, Performance Max, Meta Ads, Microsoft Ads and Amazon Ads on contribution margin. We switch paid on last, after your site search and product data are fixed, because automation amplifies whatever shape your account is already in.
The problem
Why Optimising to Revenue Hurts Ecommerce Profit
Most ecommerce PPC accounts feed ad platforms revenue, and the platforms deliver exactly that: volume on thin-margin products. The model learns to sell your worst lines because they convert easily. ROAS looks healthy while profit quietly shrinks.
Feeding contribution margin into the conversion signal changes the answer, often within a fortnight. Structure matters just as much. On one account we consolidated 41 campaigns into 9 intent-shaped groups, and the learning phase ran 2.4 times faster. That restructure did more work than the bidding model itself.
What You Get from Our Paid Media Management
Every engagement ships four deliverables. No line items you cannot point at.
Margin-Fed Bidding
We put real cost of goods into the conversion signal, so smart bidding optimises the number your finance team recognises: contribution margin, not vanity revenue.
Account Restructure
Campaigns are consolidated into intent-shaped groups with enough signal per group to learn within a week, across Google Shopping, search and Performance Max.
Guardrails and Rollback
Before the model gets any authority, we agree frozen exclusions, a margin floor and a written rollback rule. If performance slips, everyone already knows what happens next.
Incrementality Testing
Geo and holdout tests on brand and retargeting campaigns show which conversions you would have won anyway, so you stop paying for them.
How We Run Performance Marketing, Week by Week
Structure and Signal
We consolidate the account, rebuild the conversion signal on margin and write the guardrails down.
Exploration
The model widens deliberately. CAC can rise here, so we agree the exploration budget in advance rather than killing tests mid-learning.
Consolidation
Winners are scaled, losers are cut, and creative testing is framed on one variable per batch so results stay readable.
Monthly Incrementality
A live holdout runs somewhere in the account at all times, which keeps reported performance honest.
Stack we work in
Platform-agnostic. We work in whatever you already own and tell you honestly when it is the constraint.
Performance Marketing FAQs
Paid traffic landing on a broken search box or a thin product page is the most expensive way to find those problems. Fixing site search and product data first improves the economics of every click afterwards.