Google CSS
Pay up to 20% less per click on Google Shopping
Smarketer Shopping is a certified Google CSS partner. Your full bid counts in the auction, and your campaigns stay as they are.
Included in the All-in-One plan.
How it works
Where the 20% comes from
Without a CSS, about every fifth euro of your Shopping bid goes to Google's own comparison service. Through a certified CSS partner, that part goes into the auction.
Your ads
The only visible change is one line
Your Shopping ads look the same as before. Below the ad, "By Google" becomes "By Smarketer".
- Campaigns, bids and products stay as they are
- No downtime while switching
- You can switch back at any time
Getting started
Switch in three steps
01Sign up
Create your WaveMetrics account and connect Merchant Center in under two minutes.
02Confirm the switch
We request the switch for your Merchant Center. You confirm with one click.
03Save from the first click
Once the switch is done, your full bid counts in every auction.
2026
Agentic Commerce Trailblazer
Google CSS Spotlight Awards · Winner
2025
Business Growth
Google CSS Spotlight Awards · Winner
Awards
Recognized by Google in 2025 and 2026
Smarketer Shopping and WaveMetrics won the Google CSS Spotlight Award 2026 as Agentic Commerce Trailblazer, for preparing merchants' product data for AI shopping. In 2025, we won in the Business Growth category.
Kochblume: better product titles, two months later
Kochblume makes silicone kitchen tools in Germany. After optimizing their Shopping titles with WaveMetrics, they saw these changes within about two months.
Read the case study- Revenue
- +342.6%
- ROAS
- +36.5%
- Impressions
- +207.2%
- Clicks
- +115.4%
Individual result, not a guaranteed outcome.
Pricing
Start with a free audit
Upgrade when you want CSS savings and AI optimization for your whole catalog.
Free
See where your feed and account stand.
0 €/ month
- Feed Audit with score and findings
- AI optimization for 100 products, once
- Export file for Merchant Center
- Your first Account Audit
All-in-One
Everything in WaveMetrics, plus Smarketer CSS.
39 €29 €/ month
Enter code WELCOME at checkout to pay 29 € instead of 39 € per month, for as long as you stay subscribed. For new customers until 31 Dec 2026.
Includes AI credits worth 40 € every month
- 1 Google Ads and 1 Merchant Center account included
- Feed Audit and Account Audit
- AI optimization for your whole catalog*
- Reporting and Sidekick, your AI assistant*
- Smarketer CSS: up to 20% lower click costs
- + 19 € / month per additional account
No credit card for the trial. Cancel monthly.
* AI features use AI credits.
Google CSS
What is a CSS?
A Comparison Shopping Service (CSS) places your Shopping ads on Google. Without your own choice, that's Google's own CSS, which keeps a margin of around 20%. With a certified partner like Smarketer Shopping, your full bid counts in the auction.
Where do I see the 20% in my account?
You don't see it as a credit. A 0.80 € bid through Smarketer CSS competes like a 1.00 € bid through Google's CSS, so you get the same visibility for less, or more visibility for the same budget.
What changes in my ads?
Only the line under your ad: "By Google" becomes "By Smarketer". Campaigns, bids and products stay the same, and you can switch back at any time.
Pricing and account
What's included in the free plan?
A full Feed Audit, a one-time AI optimization of up to 100 products with an export file for Merchant Center, and your first Account Audit.
What are AI credits?
AI features like Sidekick, Account Audits and AI optimization use AI credits. All-in-One includes credits worth 40 € every month, and bigger AI plans include more. Larger jobs show their credit estimate before they run, and you can buy more credits at any time. Purchased credits never expire.
How does the WELCOME code work?
New customers who sign up with the code WELCOME by 31 Dec 2026 pay 29 € instead of 39 € per month for as long as they stay subscribed. Each additional account costs 19 € per month.
Do I need a credit card to try it?
No. You can start without a payment method.
Can I cancel monthly?
Yes. There's no minimum term and no notice period.
Start saving on every click
Switch your Merchant Center to Smarketer CSS. Your campaigns keep running.
Free audit. No credit card needed.