Add incremental shopping sales alongside your existing PPC campaigns
Our retailers generated over £1.25 billion in additional sales with Redbrain's CSS ads in 2025 without increasing their own ad spend.
We run Google Shopping ads alongside your own campaigns. We pay for every click ourselves. You pay a commission only when we deliver an approved sale. And you get to see everything we do, down to the search terms.
Request an incrementality review
See how Redbrain fits alongside your existing PPC. Start small and only pay commission when Redbrain generates a sale.
Redbrain drives sales growth for eBay with lower-priced product strategy.
+62% sales value in the UK
Read the case studyTrusted by over 5,000 retailers
Google's #1 Performance Shopping Partner in Europe.
The objection
So why isn't every retailer already doing this?
“Our PPC team is worried about cannibalisation.”
This is the question every CSS team should be answering first.
Your team is worried that adding Redbrain will compete with their campaigns, inflate your CPCs, or take commission on sales you'd have won anyway. Saying there's no cannibalisation is the safe move when you're flying blind, and most CSS partnerships are exactly that: a black box you can't see into.
Ask the average CSS partner about cannibalisation and you'll get the same speech. It's a myth. We won't inflate your CPCs. Google's second-price auction means your CPC is set by the next individual merchant, not a CSS partner. This is true. But what does it actually mean?
-
1The bids
- Your campaign£0.50
- Redbrain, your product£0.40
- Competitor£0.35
You, Redbrain listing your product, and another merchant all bid on the same search.
-
2Google removes the duplicate
Your campaign£0.50Redbrain, your product £0.40 Set asideOne entry for your product£0.50One merchant, one entry. Your own listings never bid against each other.
-
3The next merchant sets the price
Your entry£0.50You pay£0.36Competitor£0.35You pay one penny more than the next merchant's bid, however high your own bid is.
-
The result
- Your CPC with Redbrain in the auction
- £0.36
- Your CPC without Redbrain
- £0.36
No increase to your CPC
Redbrain pays for its own clicks. You pay commission only on approved sales.
Simplified for illustration. Real auctions also weigh ad quality and relevance. Figures are illustrative.
The question that matters
But it does not answer the question that matters most to your team
“Is the CSS partner appearing ahead of your own campaigns and collecting sales your brand would have made anyway?”
That is the difference between a technical promise and a measurable partnership.
Redbrain tracks impression share, overlap rate and outranking share so your team sees exactly where our activity overlaps with existing campaigns and where it adds additional coverage.
No blanket “zero cannibalisation, zero risk” promise. No black box. Just complete visibility into what is happening.
Search: cordless stick vacuum Shopping carousel, positions 1 to 6
- 1 Competitor
- 2 You, via Redbrain
- 3 Your campaign
- 4 Competitor
- 5 Competitor
- 6 Competitor
Outranking
Our listing sat ahead of yours in this auction. We count it, and you see it, by product and by search term.
- Impression share
How often Redbrain's listings appeared in the auctions they were eligible for.
- Overlap rate
How often Redbrain and your own campaigns appeared in the same auction.
- Outranking share
When both appeared, how often Redbrain's listing sat ahead of yours.
Case study
Reviving “zombie” products has been a major growth lever, unlocking clear incremental revenue.
Boden partners with Redbrain CSS to revive underperforming products, expand reach and drive incremental sales through data-led optimisation.
- Click-to-sale growth
- +133%
- ROI
- 14.2%
- Impressions
- 22.5M
Redbrain Connect
Grow your sales. Keep the control.
Performance Insights Q4 Forecast
Redbrain Auction Insights All markets · last 4 weeks
Outranking share 9% Redbrain ahead of your campaigns
Overlap rate 18% Same auction as your campaigns
Impression share 41% Of eligible auctions
Search terms Top by clicks
| Search term | Clicks | Overlap | Outranking |
|---|---|---|---|
| cordless stick vacuum | 1,240 | 22% | 4% |
| 9l dual air fryer | 986 | 8% | 2% |
| bean to cup coffee machine | 731 | 31% | 17%Review |
| electric toothbrush heads | 604 | 0% | 0% |
Sample data, for illustration
See exactly where Redbrain is appearing.
The Redbrain Connect Dashboard shows:
- Every search term Redbrain bids on
- Every product that receives clicks
- Every auction where Redbrain appears
- Impression share
- Overlap rate
- Outranking share
No “just trust us”. Check it whenever you like and get a weekly update sent to your inbox first thing Monday morning.
Request an incrementality review
See how Redbrain fits alongside your existing PPC. Start small and only pay commission when Redbrain generates a sale.
Case study
Within two months of being live across all categories they have become our second highest revenue driving partner.
Read our case study to discover how the collaborative partnership between Redbrain and B&Q, delivered maximum growth and incremental growth through CSS.
- Conversion rate
- +21%
- Average revenue, month on month
- +61%
- Average order value
- +50%
The digital shelf
This isn't about clicks. It's about owning more of the digital shelf.
Top retail brands have paid for premium shelf space for years because it works. The Google Shopping carousel is that shelf for ecommerce. Every search is an aisle, and this shelf has no empty spots. Every position you don't hold, the auction hands to a competitor's products.
The winning brands on Google Shopping aren't simply bidding higher. They hold more carousel positions. With Redbrain running alongside your own campaigns, more of that shelf belongs to you.
One search, one digital shelf
Having Redbrain alongside your campaigns On
- Competitor
- You
- You, via Redbrain
- Competitor
- You, via Redbrain
- You
- Competitor
- You, via Redbrain
- Competitor
- You
- Competitor
- Competitor
- Your campaigns
- Your products, via Redbrain
- Competitors
You hold 6 of 12 positions