TCG Value Overlay Privacy Policy

Last updated: February 20, 2026

Overview

TCG Value Overlay provides price comparison and valuation data for trading card listings on supported marketplaces.

Data We Process

• Listing page URL and product identifiers on supported pages.
• Listing title and condition text when available.
• Extension interaction events (for example panel open and link click).
• Error telemetry for diagnostics and reliability.

What We Do Not Collect

• No user account login data in the current version.
• No payment card data.
• No browsing data outside supported domains.

Why We Process Data

• Fetch and display card comparison pricing data.
• Improve extension reliability and troubleshoot failures.
• Measure feature usage in aggregate.

Sharing

Data may be processed by infrastructure providers solely to operate the service. Affiliate networks may receive click attribution when users click outbound links.

Retention

Operational logs and telemetry are retained only as long as needed for support, reliability, and security purposes.

Contact

For support or privacy questions, contact: tony.y.sheng@gmail.com