js-sec.indexww.com: Index Exchange Ad Tracker Unveiled | Privacy Auditor
- Privacy Auditor Research Team
- Privacy , Trackers , Advertising
- July 12, 2025
Table of Contents
js-sec.indexww.com: How Index Exchange Tracks You for Ads
Index Exchange’s tracker, js-sec.indexww.com, lurks on websites to monitor your activity, feeding data into real-time ad auctions. This invasive profiling sacrifices your privacy for ad revenue. Here’s what it does and how to fight back.
What Is js-sec.indexww.com?
This domain is part of Index Exchange’s ad tech ecosystem, used to collect user data for advertisers bidding on ad impressions. It prioritizes profit over privacy. As Privacy Auditors, we see this as a direct threat to your personal data.
Data It Collects
When you browse a site with this tracker, it grabs:
- IP Address: Pinpoints your location, often home or work.
- Browsing History: Logs sites visited for ad targeting.
- Ad Interactions: Tracks ad clicks and views, timestamped.
- Device ID: Captures unique IDs like GAID or IDFA for tracking.
- Cookie IDs: Plants trackers (e.g., ‘_IX’) to follow you across domains.
- Behavioral Data: Records time spent and pages viewed.
- Browser Info: Identifies Chrome or Edge with version details.
- Operating System: Logs Windows 11 or Android 13 specifics.
- Referrer URL: Notes your origin, like a search page.
- Timestamps: Marks every action precisely.
This data fuels a detailed ad profile about you.
Who Gets Your Data?
Index Exchange shares your info with:
- Advertisers: Companies bidding on ad space via their platform.
- Adtech Partners: Firms in real-time bidding ecosystems.
- Third-Party Data Vendors: Entities enriching user profiles.
- Cloud Infrastructure Providers: Services storing auction data.
- Government Authorities: If legally mandated, per their policies.
How to Protect Yourself
Privacy Auditors equip you to resist trackers:
- Block Trackers: Use Privacy Auditor tools to stop
js-sec.indexww.comscripts. - Hide with a VPN: Mask your IP using a VPN like Mullvad.
- Opt for Privacy Browsers: Choose Firefox with tracking protection or Tor.
- Delete Cookies: Clear tracking cookies to disrupt profiling.
- Disable JavaScript: Block scripts, though some sites may not work.
Stack these defenses to safeguard your privacy.
Sources
- Index Exchange Privacy Policy: https://www.indexexchange.com/privacy/
Warning
The js-sec.indexww.com tracker seizes data like your IP address and browsing history for ad auctions. Defend yourself with Privacy Auditor’s blockers, a VPN, and our privacy guidance.
This is a legal disclaimer. All information is provided for educational purposes only.
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