Heureka Ověřeno zákazníky: what it is and how to set it up

If you sell to Czech or Slovak customers, Heureka "Ověřeno zákazníky" (Verified by Customers) is one of the strongest trust signals you can earn. It collects genuine reviews from real buyers and rewards your store with a recognizable certificate that shoppers actively look for before they buy. This guide explains what it is, why it matters, how to activate it, and how to measure Heureka conversions from your Shopify store with Feedyio.

What is "Ověřeno zákazníky"?

Ověřeno zákazníky is a free service from the Heureka Group that collects and displays reviews from customers who have actually purchased from your store. After each order, the buyer receives a short satisfaction questionnaire, so every review comes from a verified buyer - not anonymous visitors. Stores that maintain high ratings earn the Verified by Customers certificate, shown on Heureka and as a badge/widget you can place on your own website.

Why it matters: the numbers

• 77% of Czech online shoppers rely on reviews when deciding where to buy.
• 50% of customers will only buy from a store that holds the certificate.
• Stores using the program report up to a 43% higher conversion rate, 54% higher order value, and 17% higher click-through rate in advertising formats.

In short: the badge reduces purchase hesitation, improves your position on Heureka, and lets you enter the prestigious ShopRoku (Shop of the Year) competition.

Blue vs. gold certificate

• Blue certificate - tens of reviews over the last 180 days and at least 90% of customers recommending your store (last 90 days).
• Gold certificate - hundreds of reviews over the last 180 days and at least 97% recommending your store (last 90 days).

Reviews are gathered automatically from every order, regardless of where the customer came from (Heureka, another comparison site, or a direct purchase).

How to activate Ověřeno zákazníky (step by step)

1. Read and accept the terms of the service in your Heureka account.
2. Complete the activation form in the Heureka services administration and check the pre-filled contract details.
3. Add a working e-mail address that will receive the satisfaction questionnaires.
4. Submit the form - this is your proposal to enter into the contract; you’ll receive a confirmation e-mail.
5. Implement the tracking: if your platform supports it, paste your unique 32-character key; otherwise add Heureka’s application script to the final step of the order (thank-you page).
6. Wait for the first order - the script activates after the first purchase; verify it in the "Ověřeno zákazníky" tab.
7. Choose your service level the day after your first tracked order.

How to set it up in Feedyio

The Ověřeno zákazníky questionnaire doesn't run from a Shopify custom pixel. Instead you create the Heureka integration inside the Feedyio app, which sends your completed orders to Heureka so it can email each customer for a review. (Heureka's separate conversion measurement does use a frontend snippet in a custom pixel - that's a different setup.) For the reviews:

1. Install Feedyio from the Shopify App Store.
2. Create the Heureka integration in the app and connect it with your Heureka API key.
3. Set it up and enable it - Feedyio then sends your orders to Heureka automatically, so the satisfaction questionnaire goes out after each purchase.

Step-by-step instructions are in our integrations help center.

How Feedyio helps

Feedyio is a Shopify app that connects your store to Heureka and 130+ other channels. For Heureka specifically it covers the full picture: a correctly formatted Heureka product feed with category mapping and hourly price/stock sync, and the Ověřeno zákazníky integration that sends your orders to Heureka so the reviews flow in - all without manual exports or developer time.

Ready to collect verified reviews and measure every Heureka order? Try Feedyio free on the Shopify App Store.