gem.gbc.criteo.com: Criteo Tracker Revealed | Privacy Auditor
- Privacy Auditor Research Team
- Privacy , Trackers
- October 18, 2025
Table of Contents
gem.gbc.criteo.com: Criteo’s Invasive Retargeting Tracking
Criteo uses gem.gbc.criteo.com to profile your online shopping, enabling retargeted ads that invade your privacy with detailed data. This tracker logs extensive behavior. Learn what it collects and how to stop it.
What Is gem.gbc.criteo.com?
This domain is part of Criteo, an ad tech company specializing in retargeting. It profiles your shopping to ensure ads follow you across the web.
Data It Collects
It captures:
- IP Address: Ties activity to location.
- Geolocation: Pulls position from IP.
- Cookie IDs: Uses
_criteo_idfor tracking. - Browsing History: Logs product pages.
- Device ID: Identifies your device.
- Ad Interactions: Records clicks and views.
- Browser Type: Notes Chrome 122.0.
- Operating System: Captures iOS 17.1.
- User-Agent String: Logs browser data.
This builds a shopping ad profile.
Who Gets Your Data?
Criteo shares with:
- Advertiser: Uses data for retargeting.
- Third-party ad platform: Integrates data.
- Marketing partner: Leverages insights.
- Cloud service provider: Stores profiles.
How to Protect Yourself
Secure privacy with:
- Tracker Blockers: Halt
gem.gbc.criteo.comvia Privacy Auditor. - VPN Use: Mask IP with Mullvad.
- Privacy Browsers: Use Firefox for safety.
- Cookie Removal: Clear cookies often.
Combine for stronger defense.
Sources
- Criteo Privacy Policy: https://www.criteo.com/privacy/
Warning
The gem.gbc.criteo.com tracker steals invasive data like your IP address and browsing history. Defend with Privacy Auditor and a VPN.
This is a legal disclaimer. All information is provided for educational purposes only.
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