lb.eu-1-id5-sync.com: Identity Sync Tracker | Privacy Auditor
- Privacy Auditor Research Team
- Privacy , Trackers
- February 26, 2026
Table of Contents
lb.eu-1-id5-sync.com: Invasive Identity Syncing
The domain lb.eu-1-id5-sync.com belongs to ID5, a company that syncs your identity across websites to enable relentless ad tracking. It builds a unified profile without clear consent, directly undermining your privacy. Here’s the full story and how to block it.
What Is lb.eu-1-id5-sync.com?
ID5 uses this domain to synchronize user identities across platforms, linking your activity for advertisers. It creates a persistent tracking profile, a tactic Privacy Auditor finds alarmingly invasive.
Data It Collects
This tracker logs:
- IP Address: Ties activity to your location.
- User ID: Tracks you with a persistent identifier.
- Device Fingerprint: Combines browser, OS, and screen data.
- Cookie IDs: Tags you for long-term tracking.
- Session ID: Connects actions in a session.
- Referrer URL: Notes your entry source.
- Browser Details: Records browser type and version.
- Timestamps: Logs exact sync times.
This data ensures you’re tracked everywhere you go online.
Who Gets Your Data?
Your information is shared with:
- Adtech Vendor: Uses data for identity resolution in ads.
- Third-party Advertiser: Targets you with personalized ads.
- Data Broker: Aggregates profiles for broader use.
How to Protect Yourself
Privacy Auditor recommends these defenses:
- Block Trackers: Stop
lb.eu-1-id5-sync.comwith Privacy Auditor’s paid service. - Hide IP with VPN: Mask location with a VPN like Mullvad.
- Use Privacy Browsers: Switch to Firefox with protection or Tor Browser.
- Disable JavaScript: Block scripts via settings or NoScript, though sites may fail.
- Clear Cookies: Delete cookies often to break tracking.
Stack these measures for better privacy.
Sources
- ID5 Privacy Policy: https://id5.io/privacy-policy/
Warning
Caution: lb.eu-1-id5-sync.com grabs your IP address and user ID. Defend your data with Privacy Auditor’s tools and a VPN like Mullvad.
This is a legal disclaimer. All information is provided for educational purposes only.
Back to Tracker List