Privacy Policy

Effective: July 9, 2026

Summary

Cleange is a suite of client-side chemical safety tools. Every product selection you make — and every safety verdict you receive — is processed in your browser. Nothing is uploaded, stored, or transmitted to our servers.

What Cleange Does Not Collect

• Product selections or search queries
• Safety check results or verdicts
• Personal information, names, or email addresses (except via the contact form)
• Browsing patterns within the tools

How the Tools Work

When you use Cleange's Mix Checker or Unmixable Finder, all computation runs in JavaScript on your device. The product database and interaction rules are embedded in the page. No API calls are made during safety checks.

Contact Form

If you use the contact form, your name, email, subject, and message are stored in a database for the sole purpose of responding to your inquiry. This data is not shared with third parties, not used for marketing, and deleted after the inquiry is resolved.

Third-Party Services

Hosting — Cloudflare

cleange.com is hosted on Cloudflare Pages. Cloudflare processes standard web server logs including IP addresses, browser type, and pages requested. See Cloudflare's privacy policy.

Advertising — Google AdSense

Cleange displays advertisements through Google AdSense. Google and its advertising partners use cookies and similar technologies to serve ads based on your prior visits to this site and other websites.

You can control personalized advertising:

• Google Ads Settings — opt out of personalized ads from Google
• aboutads.info — opt out from participating ad networks
• Your Online Choices — European advertising opt-out

For more information, see how Google uses information from sites that use its services.

Cookies

Cleange itself sets no cookies. Third-party services may set cookies:

• Google AdSense — various cookies for ad personalization and frequency capping
• Cloudflare — __cf_bm — bot detection and security

Blocking cookies will not affect Cleange's safety tools.

Your Rights

EU/EEA Residents (GDPR)

You have the right to access, rectify, erase, or restrict processing of personal data collected by third-party services on this site. Since Cleange collects no personal data during tool use, these rights apply to Google AdSense and Cloudflare data. Contact us for assistance.

California Residents (CCPA)

Cleange does not sell personal information. Google's use of advertising data is governed by Google's privacy policy. To opt out of personalized advertising, visit Google Ads Settings.

Do Not Sell My Personal Information

Cleange does not sell personal information. We do not share personal data with third parties for monetary consideration. Google AdSense may use cookies for ad personalization — you can opt out via Google Ads Settings or aboutads.info.

Children's Privacy

Cleange does not knowingly collect data from children under 13. Third-party advertising is subject to Google's advertising policies.

Changes

Material changes will be reflected in the effective date above.

Contact

Privacy questions: Contact us