Privacy Policy

Last updated: February 10, 2026

Platform Checker ("we", "us", "our") operates the website platformchecker.com and the Platform Checker Chrome extension. This privacy policy explains what data we collect, how we use it, and your rights.

1. What We Collect

Website (platformchecker.com)

When you use the website to scan a URL, we collect:

  • The URL you submit for analysis
  • The technologies detected on that URL
  • Your email address and password if you create an account

Chrome Extension

When you browse with the extension installed, it collects:

  • Page URL — the URL of each page you visit on http/https sites
  • Page HTML — the HTML content of each page you visit, used solely for technology detection

This data is sent to our API at platformchecker.com for analysis. We do not collect:

  • Personally identifiable information (name, address, phone number)
  • Form inputs, passwords, or authentication credentials
  • Cookies or session tokens
  • Browsing history beyond the current page being analyzed
  • Location data

2. How We Use Your Data

We use the collected data exclusively to:

  • Detect and identify technologies and frameworks on websites
  • Display results to you in the extension popup and on the website
  • Cache results to improve performance and reduce redundant analysis
  • Improve our technology detection accuracy

3. Data Storage and Retention

  • Extension local storage: Scan results are cached locally in your browser per tab and per URL. URL caches expire after 1 hour. Tab data is cleared when the tab is closed.
  • Server-side: Scan results (URL and detected technologies) are stored on our servers. Page HTML is processed for analysis and is not permanently stored.

4. Data Sharing

We do not sell, trade, or transfer your data to third parties. We do not use your data for advertising, profiling, or creditworthiness purposes. Scan results may be displayed publicly on platformchecker.com unless you mark them as private.

5. Your Rights

You can:

  • Uninstall the Chrome extension at any time to stop all data collection
  • Mark your scans as private on the website so they are not publicly visible
  • Request deletion of your account and associated data by contacting us

6. Security

All communication between the extension and our servers is encrypted using HTTPS. We implement reasonable security measures to protect stored data.

7. Changes to This Policy

We may update this privacy policy from time to time. Changes will be posted on this page with an updated revision date.

8. Contact

If you have questions about this privacy policy, contact us at hello@platformchecker.com.