Free comparison shopping service

Up to 20% reduction in CPCs for your Shopping ads.
No payment required.

Third-party CSS is only available to Europe-based advertisers in specific countries.
See our FAQs for more details.

Bidnamic CSS increases visibility at reduced CPCs. Oh and it's completely free.
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Switch to Bidnamic CSS today

  • 100% free, no strings attached;
  • Quick and easy to set up: takes less than 10 minutes;
  • Seamless integration;
  • Switch back at any time.

Switch to Bidnamic CSS today

  • 100% free, no strings attached;
  • Quick and easy to set up: takes less than 10 minutes;
  • Seamless integration;
  • Switch back at any time.

95% of our clients give us 5 star reviews

Bidnamic's research found that clients who took advantage of a second CSS earned more page visits to their ads.

Why use Bidnamic CSS?

  • Completely free - no additional fees;
  • Trusted, independent provider that manages thousands of Google Shopping campaigns;
  • Flexible approach: switch from your existing CSS provider, or add as an additional CSS;
  • Enjoy enhanced performance from Bidnamic's automated bidding engine (additional fee applies);
  • Unlimited support, whenever you need it.


CSS stands for comparison shopping service, which enables retailers to place Shopping ads in the carousel. CSS websites collect product information and offers from online retailers to advertise on Google Shopping.

Many European retailers can take advantage of multiple CSS websites, with Google offering these advertising up to 20% discounts on CPCs.

Read more on CSS here

All retailers who advertise on Google Shopping technically use a CSS since the carousel provides ads for the same product from different retailers.

Due to EU regulations, Google now enables European-based advertisers to use multiple CSS in the following countries:

Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Ireland, Italy, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Spain, Sweden, Switzerland, and the United Kingdom.

No. Our CSS is available free of charge to any merchants based in the countries listed above.

Google enables advertisers based in many European countries to use multiple CSS.

Learn more about using multiple CSS accounts.

Advertisers who operate with an external CSS partner effectively use two separate Merchant Center accounts for the same website. In turn, this enables retailers to appear twice in the same Shopping Ads results. 

Therefore, retailers using Google Shopping with a CSS partner can reduce average CPC, boost their ROAS, and increase profitability.

Check out our research on using multiple CSS accounts

If you would no longer like to use Bidnamic CSS anymore, you can transfer back to Google's CSS or another provider's. 

Use the email address we provide during onboarding to contact us and we'll accept the request.

A member of our team will send over a request within one UK working day of your submission using the form above.

Once you've accepted, it should take one working day to see 'CSS:Bidnamic' in the Merchant Center.

Still got questions about CSS?

Check our full CSS FAQs for more information

Learn more

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