ib.adnxs-simple.com: AppNexus Tracker Exposed | Privacy Auditor
- Privacy Auditor Research Team
- Privacy , Trackers
- January 1, 2026
Table of Contents
ib.adnxs-simple.com: How AppNexus Tracks You for Ad Bidding
AppNexus’s tracker, ib.adnxs-simple.com, monitors your online activity to support real-time ad bidding through its Xandr platform. This invasive tracking erodes your privacy for advertising profit. Here’s what it collects and how to resist.
What Is ib.adnxs-simple.com?
AppNexus, now part of Xandr, uses ib.adnxs-simple.com to track your browsing for targeted ad delivery. It gathers data across websites, undermining your anonymity. As Privacy Auditors, we’re concerned about this surveillance.
Data It Collects
When you’re on a site with AppNexus, it logs:
- IP Address: Pinpoints your location, often to city level.
- Browser Fingerprint: Combines settings to identify you uniquely.
- User ID: Tags you for long-term tracking.
- Session ID: Connects actions in a single visit.
- Page URL: Records every page you access.
- Referrer URL: Tracks where you came from.
- Ad Interaction: Logs ad clicks with ad ID and timestamp.
- Timestamps: Captures actions with millisecond timing.
- Cookie IDs: Uses identifiers for ongoing monitoring.
This builds a detailed ad profile based on your behavior.
Who Gets Your Data?
AppNexus shares your information with:
- Advertiser: Targets you via Xandr campaigns.
- Ad exchange platform: Bids on your profile in real-time auctions.
- Third-party data broker: Aggregates profiles for ad targeting.
- Legal authority: Accesses data under legal demands.
How to Protect Yourself
At Privacy Auditors Institute, we’re dedicated to safeguarding your privacy. Here’s how to block AppNexus tracking:
- Use Tracker Blockers: Deploy Privacy Auditor tools to stop
ib.adnxs-simple.comscripts. - Mask with a VPN: Hide your IP with a VPN like Mullvad to obscure location.
- Switch to Privacy Browsers: Use Firefox with strict settings or Tor Browser.
- Disable JavaScript: Prevent tracking scripts, though sites may break.
- Clear Cookies Often: Wipe tracking cookies to disrupt profiling.
Combine these defenses to limit exposure to trackers like AppNexus.
Sources
Data is sourced from:
- Xandr Privacy Policy: https://www.xandr.com/privacy/
- Xandr Website: https://www.xandr.com/
Warning
The ib.adnxs-simple.com tracker grabs invasive data like your IP address and ad interactions. Protect yourself with Privacy Auditor’s blocking tools, a VPN like Mullvad, and our privacy expertise.
This is a legal disclaimer. All information is provided for educational purposes only.
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