Google CSS Requirements: What You Need to Fulfill as a Partner
6 Jul 2025
5 min read

As a retailer on Google Shopping or as a performance marketing agency in the field of online marketing and Google Ads, participating in the Google CSS (Comparison Shopping Service) program is a significant advantage. The CSS partnership can not only increase your customers' visibility on Google Shopping but also significantly improve the efficiency and ROI of your campaigns. In this article, you will learn step by step how to become a Google CSS partner yourself, without having to rely on a third-party CSS – and why the price comparison toolkit from Label Up makes this process much easier for you.
Overview: What is Google CSS?
Before you embark on the path to participating in Google CSS, you should know exactly what the Google Comparison Shopping Service (CSS) actually is. A CSS is a price comparison portal that enables retailers & e-commerce platforms to advertise their products on Google Shopping and PMAX. These services provide consumers with the opportunity to compare products and prices from various providers in an organized manner on Google.
If you run your own price comparison portal as an agency and act as a Google CSS partner, your customers' shopping ads will appear with your CSS's name. Your own name under the shopping ad? – that gives you more control, visibility, and better conditions with Google support.
The Requirements for Your Own Google CSS
To be recognized as a CSS partner at Google, you must meet certain prerequisites. Central to this is the operation of an independent and functional price comparison platform that complies with Google's guidelines.
The most important criteria from Google are:
at least 50 merchants per country in your portfolio to compare
a clear representation of the products including name, price, and image
linking each product to the respective shop, so that users can buy directly
at least two filtering options to sort the products sensibly (e.g., by price, brand, category)
If you want to build your own price comparison site - without relying on a white label solution like Label Up - technical know-how is essential. Your agency should possess the knowledge and resources to continuously operate and optimize the website.
All Requirements for a Google CSS Partnership at a Glance:
Google CSS Requirement | Explanation | Support by Label Up |
own price comparison site | Basic requirement for Google Shopping Ads | Label Up provides a fully Google-compliant price comparison site (whitelabel). |
product presentation | clear product presentation | The data from your MC is seamlessly integrated. |
direct link to the correct shop | every click on the product must lead directly to the shop | Fully automated & GDPR-compliant setup. |
at least 50 Merchant Centers per country | The rule ensures that your CSS is a genuine comparison service | Label Up adds the 50 shops to meet your requirements. |
min. 2 filter options | criteria from Google for every CSS | The Label Up price comparison site comes standard with filter options. |
technical infrastructure | CSS Center, MC, website, and ads are closely interconnected | Label Up introduces you to the infrastructure and takes care of creating the CSS center and MC. |
technical know-how | own CSS requires a lot of technical knowledge | The team at Label Up consists of experts who support you and take on these tasks. |
current data | regular feed updates | Label Up takes care of the updates |
comply with CSS guidelines | all requirements must be met | Label Up websites meet all Google guidelines and set up the website for you. |
accessibility | CSS must be publicly accessible | Label Up CSS are user-friendly and suitable for your CI |
Google verification | Google checks the CSS | Label Up guides you through the process and ensures the verification. |
The Technical Infrastructure of a Google CSS Partner

The technical infrastructure of a Google CSS partner consists of four main elements, whose interplay ensures flawless performance.
For your own CSS to function perfectly, four central components must work together:
Google CSS Center: Here you manage all connected merchant accounts, activities, and settings. Through your CSS Center, you can invite shops to your price comparison portal with just three clicks. You will receive access to the Google CSS Center from Google once you have been accepted into the CSS program.
Merchant Center: Retailers choose your CSS there. The product data must be regularly updated – manually or via automated feeds.
Your CSS website (landing page): It presents the products clearly with price, image, and direct linking to the respective shop. Technical interfaces (APIs) must be set up and maintained between the CSS Center and the landing page.
Shopping Ads on Google: Once your CSS is actively chosen, the CSS name appears under your customers' shopping ads. If a user clicks on it, they will be redirected for free to your CSS page.
💡 Tip: With a CSS white label solution like Label Up, this entire process – including API maintenance, updates, and domain integration – is automated for you.
Own Google CSS Without 50 Merchant Centers - How Do I fulfill the Requirements Anyway?
Google requires that you have at least 50 Merchant Centers in your portfolio for the CSS partnership. This is a high hurdle, especially for smaller agencies, freelancers, or startups. Here, the white label software from Label Up offers you a clever solution. Our price comparison platform is Google-certified and meets all requirements. Even if you manage less than 50 Merchant Centers, you can let your customers 'top up' through Label Up. This way, you meet the conditions without having to build a complex infrastructure yourself. Also, with Label Up, you need not worry about verification with Google.
Meet All Requirements for Google CSS with Label Up
Building your own CSS sounds tempting, but fulfilling all the requirements involves significant effort.
If you are looking for a template for a price comparison site that you can fill with your own logo and your customers, you are at Label Up. This way, you benefit from:
A fully functional, Google-compliant price comparison platform
Automatic integration of all your customers' products into your CSS
Easy management and verification with Google
Your own branding and domain presence
Technical support and ongoing maintenance
This means: You can fully focus on your core competencies – and at the same time benefit from all the advantages as a Google CSS partner.
Conclusion - Meet All Requirements for Your Own Google CSS
The Google CSS partnership is a powerful tool to improve the performance of your shopping and PMAX campaigns and make your customers more visible. However, building your own price comparison platform with at least 50 Merchant Centers is demanding. If you currently have fewer retailers or do not want to manage the technical infrastructure yourself, the white label CSS software from Label Up is the best solution for you. It combines the benefits of having your own CSS with minimal effort – giving your agency a real competitive advantage.