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Comparison Shopping Service

Shopping ads without the 20% fee.

Authorised Comparison Shopping Service for EU merchants — run your Shopping Ads through our CSS and reclaim the 20% auction fee, with no change to how your campaigns operate day to day.

80+
Awards
14
Markets
16+
Years
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Comparison Shopping Service

20% more bidding power, same budget.

Shopping Ad Auction — live bids
Same raw budget as competitors. +20% effective bid because the retailer fee does not apply.
css-provider
live
$ omnicliq css --link-account
[auth] Merchant Center linked ✓ verified
[route] Bids routing through CSS ✓ live
[fee] Auction fee reclaimed ✓ -20%
✓ Same budget, more impressions
0
Fee Reclaimed
0
Campaigns Migrated
0
Onboarding

A legitimate way to reduce your shopping auction cost.

Since the European Commission's competition ruling, merchants in the EU have had the option to run their shopping ads through an authorised Comparison Shopping Service instead of the default retailer setup. The practical benefit: a 20% fee that applied to the default auction does not apply when bids are placed through a CSS. The same budget produces more visibility, more clicks, and more sales — with no change to how campaigns operate day to day.

Omnicliq operates an authorised CSS for merchants who want this economic benefit without managing the technical mechanics themselves. Migration is straightforward: account linking happens once, campaigns continue to run unchanged, and the fee reduction is realised at the auction level. No migration of campaigns, no loss of reporting history, no disruption to existing optimisation.

This is one of the very few services Omnicliq offers as a standalone — not bundled into a performance marketing engagement. Merchants running shopping ads through another agency can move to our CSS and keep the other agency. The decision is purely economic: the 20% fee comes off the auction cost, and nothing else about your shopping operation changes.

What makes the difference.

01

20% Auction Fee Reclaimed

The 20% fee applied to default shopping ad auctions does not apply when bids are placed through an authorised CSS. Same budget, ~20% more visibility and clicks at the auction level.

02

No Campaign Migration

Account linking happens once. Your existing campaigns, feeds, and reporting history remain in place. The only operational change is at the auction-bidding level — everything upstream continues unchanged.

03

Agency-Agnostic

You do not have to be a performance marketing client of ours. Merchants running shopping ads through another agency can switch to our CSS and keep the other agency. The CSS service is genuinely standalone.

04

Fast Onboarding

Onboarding is typically 1-2 weeks end to end. Most of the time is verification and account linking; the operational impact on the merchant side is minimal.

05

Performance Monitoring

Post-migration performance monitored to confirm the expected fee reduction is being realised at the auction level. Most accounts see the benefit materialise within the first month.

06

Experienced Operator

Running a CSS is an operational discipline with regulatory and reporting requirements. Our status as an operator across many merchants gives you an experienced partner for a service that is genuinely in the regulatory detail.

Moving to the CSS.

01

Qualification

Verification that CSS is a fit for your setup — EU-based, running shopping ads, and meeting the eligibility requirements of the programme.

02

Account Linking

Your shopping ad account linked to our CSS. No campaign migration, no feed re-upload, no reporting history lost. The link happens at the auction-participation level.

03

Go Live

Shopping ads start routing through the CSS at the auction level. Fee reduction is realised from the first auction onwards. No pause in campaigns, no re-optimisation period.

04

Monitor

Performance monitored through the first month to confirm the fee reduction is showing up in cost-per-click and impression share as expected. Reporting transparent throughout.

Politikos Shop — flagship fashion department store

Politikos Shop.

+231%
Revenue
+225%
Transactions
+230%
Ad Spend
2
New Markets
Read full case study

Common questions.

Following EU competition law, merchants in the EU can run their shopping ads through an authorised Comparison Shopping Service instead of the default retailer-direct setup. The auction operates slightly differently when a CSS is involved: the 20% fee applied to default retailer-direct bids does not apply. The net effect is the same budget produces more visibility and clicks.
No. The account linking happens at a layer above campaigns — existing campaigns, feeds, and reporting history remain in place. The only change is how bids participate in the auction. Optimisation history, conversion tracking, and everything else continues uninterrupted.
Yes — this is one of the very few services we offer standalone. Many merchants use our CSS while keeping their existing performance marketing agency or running campaigns in-house. The decision is economic, not strategic.
From the first auction where bids go through the CSS onwards. Most accounts see the benefit clearly in cost-per-click and impression share within the first month. The fee reduction is structural — it applies immediately and continuously.
Entirely. Comparison Shopping Services are an authorised programme under EU competition law, and operating as an authorised CSS is a formal regulatory status. The programme exists specifically to open the shopping auction to alternatives beyond the default retailer-direct route.

Ready to reclaim the 20%?

Let's talk about switching your shopping ads to our CSS — no campaign migration, no disruption, just the fee reduction from the first auction onwards.

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