ow.pubmatic.com: PubMatic’s Invasive Ad Bidding Tracking

PubMatic’s tracker, ow.pubmatic.com, watches your online behavior to fuel real-time ad bidding, collecting data to auction your profile to advertisers. This deeply invades your privacy. Here’s what it does and how to resist.

What Is ow.pubmatic.com?

This domain belongs to PubMatic, a programmatic advertising platform. It tracks user activity across websites to enable real-time ad auctions, sacrificing your privacy for profit. As Privacy Auditors, we’re troubled by its extensive data collection.

Data It Collects

When you visit a site with PubMatic ads, it captures:

• IP Address: Your network location, tied to physical addresses.
• Geolocation: Lat/long derived from IP for ad targeting.
• Browsing History: URLs visited and content viewed.
• Device ID: Unique identifiers like GAID for cross-device tracking.
• User Behavior: Clicks and interactions with ads, timestamped.
• Cookie IDs: Persistent trackers like KRTBCOOKIE_xxx for profiling.
• Browser Type: Chrome or Safari, with version specifics.
• Operating System: Windows or iOS, including build details.
• Page URL: Full path of pages with ad placements.
• Timestamps: Exact timing of ad interactions.

This data builds a marketable profile of your online habits.

Who Gets Your Data?

PubMatic shares your information with:

• PubMatic internal system for real-time ad bidding.
• Third-party advertiser bidding on user profiles.
• Data broker in the adtech ecosystem for enhanced targeting.
• Government authority upon legal request, per compliance policies.

How to Protect Yourself

As Privacy Auditors, we suggest these steps to block PubMatic:

• Use Tracker Blockers: Tools like Privacy Auditor can disable ow.pubmatic.com scripts.
• Mask IP: Use a VPN like Mullvad to hide your location.
• Clear Cookies: Delete ad cookies regularly to disrupt profiling.
• Browse Anonymously: Use browsers like Tor for better privacy.

Combine these for robust protection.

Sources

• PubMatic Privacy Policy: https://pubmatic.com/legal/privacy-policy/
• PubMatic Documentation: https://pubmatic.com/resources/

This is a legal disclaimer. All information is provided for educational purposes only.