Gemius
Gemius is a European digital audience measurement company. The Gemius script collects page view data, session information, and demographic indicators to generate audience reach and frequency reports used in media planning across Central and Eastern Europe.
Overview
Gemius is a European digital audience measurement company focused primarily on Central and Eastern European markets. It provides reach and frequency reporting used by advertisers and media planners across the region.
What This Script Does
The Gemius script collects page view data, session information, and demographic indicators from visitors. It sets cookies to identify unique browsers and track return visits across measurement sessions. Network requests transmit page URLs, timestamps, referrer data, and browser metadata to Gemius servers. The collected data generates audience reports including reach, frequency, and demographic breakdowns used in cross-publisher media planning.
Consent & Compliance
Gemius falls under the analytics consent category. Its scripts set persistent cookies for visitor identification, which requires opt-in consent under GDPR and the ePrivacy Directive. As Gemius operates primarily in EU/EEA markets, GDPR compliance is directly applicable. The cookie-based tracking of unique visitors constitutes processing of personal data (online identifiers). Some national data protection authorities may offer exemptions for audience measurement tools, but Gemius's cross-site measurement typically exceeds the scope of such exemptions.
Should You Block This Without Consent?
Yes. Gemius sets tracking cookies and collects data for audience measurement across sites. This is non-essential functionality that requires prior consent under EU privacy regulations.
Is Gemius GDPR compliant?
Gemius typically loads marketing and analytics trackers, which are not strictly necessary for your site to work. Under the GDPR and the ePrivacy Directive, non-essential cookies and trackers must stay blocked until a visitor gives clear opt-in consent. So Gemius can be fully GDPR compliant, but only if your site holds its scripts until consent is granted and lets visitors decline just as easily. Compliance depends on how your site loads Gemius, not on Gemius itself.
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Tracked Domains (1)
Gemius's trackers are rarely seen, seen on under 1% of the sites ConsentStack has scanned. Scan your own site to see which of these are firing before consent.
gemius.plMarketinggemius.pl is a marketing domain operated by Gemius, used to serve ads, build audiences, and measure ad conversions. Seen on under 1% of scanned sites.
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ConsentStack automatically detects and manages Gemius trackers so your site stays compliant with global privacy regulations.