Privacy Policy

Last updated: March 24, 2026

1. Who we are

The controller of your personal data is:

Internet BillBoard a.s.
registered office at Novoveská 1262/95, Mariánské Hory, 709 00 Ostrava, Czech Republic
Company ID: 258 42 404
registered in the Commercial Register maintained by the Regional Court in Ostrava, Section B, File 3451

We are part of the Ströer group, headquartered in Germany. We develop and operate technologies for online advertising.

Data protection contact:
Email: gdpr@cz.stroeer-labs.com
Address: Internet BillBoard a.s., Beethovenova 2, 746 01 Opava

2. Who this policy applies to

This policy applies to:

3. What personal data we process and why

3.1 Website visitors

When you visit our website, our web server automatically records server logs containing:

PurposeEnsuring the operation, functionality and security of the website, protection against misuse and cyberattacks
Legal basisLegitimate interest of the controller (Art. 6(1)(f) GDPR)
Legitimate interestEnsuring proper and secure operation of the website and IT infrastructure
Retention periodNo more than 90 days, after which the logs are deleted automatically

Our website also uses a strictly necessary session cookie (PHPSESSID), used solely to make the website work properly during your visit. This cookie does not track your activity, contains no personal data and is deleted automatically when you close your browser. Its use does not require your consent (Section 89(3) of Act No. 127/2005 Coll., on Electronic Communications).

This website uses no analytics, marketing or advertising cookies, and we do not track or profile your activity in any way.

3.2 Contact persons of business partners and suppliers

If you are a contact person of our business partner, supplier or another cooperating organization, we process the personal data that you or your organization provide to us in connection with our business cooperation, in particular:

PurposeEntering into and performing contracts, mutual communication, managing business relationships, complying with legal obligations (in particular tax and accounting)
Legal basisPerformance of a contract or steps prior to entering into a contract (Art. 6(1)(b) GDPR), compliance with a legal obligation (Art. 6(1)(c) GDPR), legitimate interest (Art. 6(1)(f) GDPR)
Legitimate interestManaging business relationships, protection of legal claims
Retention periodFor the duration of the business relationship and 3 years after it ends (protection of legal claims). Tax and accounting documents are kept for 10 years from the end of the tax period in which the transaction took place (Act No. 235/2004 Coll., on VAT; Act No. 563/1991 Coll., on Accounting).

4. Who we share personal data with

To the extent necessary, your personal data may be disclosed to:

5. Transfers outside the European Union

Data about visitors to this website (server logs) is processed exclusively on our own servers in the Czech Republic and is not transferred outside the European Union.

For personal data of business partners, the use of certain third-party tools and services may involve limited access to data from outside the European Economic Area. In such cases, the transfer is protected by appropriate safeguards, in particular the Standard Contractual Clauses (SCC) adopted by the European Commission under Art. 46(2)(c) GDPR, or by a European Commission adequacy decision under Art. 45 GDPR.

6. Careers

Current job openings are listed at jobs.stroeer-labs.com, where you will also find detailed information on how applicants' personal data is processed. If you apply for a position with our company, we may also process your personal data as a controller in the course of the recruitment process.

7. Your rights

In connection with the processing of your personal data, you have the following rights:

To exercise your rights, contact us at gdpr@cz.stroeer-labs.com.

8. Security of personal data

We have adopted appropriate technical and organizational measures to protect your personal data against unauthorized access, alteration, loss or destruction. Everyone who comes into contact with personal data is bound by a duty of confidentiality.

9. Changes to this policy

We may update this policy from time to time to reflect changes in how we process personal data or in the law. The current version, including the date of the last update, is always available on this page.