Privacy Policy

Last updated: January 2026

1. Overview

Kolay Hesaplasana (kolayhesaplasana.com) is a free calculator platform that respects user privacy. This policy explains what information is collected when you visit our site, how it is used and how it is protected.

2. Data Collected

2.1 Calculation Data

All calculation data you enter on Kolay Hesaplasana (health figures, financial numbers, etc.) is processed only in your browser and is never sent to our servers. All calculations run entirely client-side in JavaScript.

2.2 Analytics Data

We use Google Analytics 4 to improve the site. This service collects anonymised visit data (page views, device type, country etc.). No personally identifiable information is collected.

2.3 Cookies

Kolay Hesaplasana uses the following cookies:

  • Session cookies: Temporary rate limiting to prevent abuse of the feedback form.
  • Google Analytics cookies: Anonymous visit statistics. See Google's privacy policy.
  • LocalStorage: Stores the "recently used tools" list in your browser only — never sent to a server.

3. Feedback Form

When you use the feedback form on a tool page, the message content and (optional) email address are used solely to respond to your feedback. This information is not shared with third parties.

4. Advertising

Kolay Hesaplasana may display ads through Google AdSense. Google may use cookies to serve relevant ads. See Google's advertising policies for more information.

5. Third-Party Services

  • Google Analytics: Anonymous visit statistics
  • Google AdSense: Ad delivery
  • Cloudflare: CDN, security and HTTPS
  • Google Fonts: Typography (Inter typeface)

6. Data Security

The site is encrypted via HTTPS. Server security is backed by Cloudflare. Content Security Policy (CSP) and other security headers are active.

7. Children's Privacy

Kolay Hesaplasana does not knowingly collect personal information from users under 13. The site is a general-purpose calculator platform.

8. Policy Changes

This privacy policy may be updated from time to time. Important changes will be announced on this page. Continued use of the site means you accept the current policy.

9. Contact

For questions about our privacy policy, visit our contact page or use the Feedback button on any tool page.