Privacy Policy & Data Practices.
Check Mouse DPI is designed to protect your privacy. We process your mouse measurements locally in your browser and do not collect personal movement telemetry.
1. Overview & 100% Client-Side Processing
Check Mouse DPI provides browser-based hardware calibration tools. All mouse movement calculations, DPI verifications, velocity metrics, and eDPI conversions are executed entirely on your device inside your browser's JavaScript sandbox. Your raw cursor movements, travel distances, and test results are never transmitted to our servers or stored remotely.
2. Information We Collect
We only handle information when you directly provide it or through standard web protocols:
- Contact Messages
Contact Inquiries: If you send a message through our Contact Us form, we receive your name, email address, and message solely to respond to your inquiry. We never sell, rent, or distribute your contact details.
- Local Browser Storage
Local Browser Storage: We use localStorage solely for essential functional preferences, such as remembering your cookie consent choice, measurement unit preferences (cm vs. inches), and selected language. For details, view our Cookies Policy. Read our Cookies Policy for the complete storage inventory.
- Technical Server Logs
Server Log Information: Standard web servers may automatically log basic non-personal technical data (such as IP address, browser type, referring page, and access timestamps) for site reliability and security purposes.
3. Third-Party Services & Advertising
We may partner with trusted third-party service providers (such as hosting platforms or advertising networks like Google AdSense) to deliver and maintain our website. These providers may use cookies or similar identifiers to serve relevant ads or analyze aggregated website traffic in accordance with their privacy policies. You can opt out of personalized advertising by visiting Google Ads Settings.
4. Data Security & Retention
We maintain strict administrative and technical safeguards, including HTTPS encryption across all site routes. Inquiries sent via our contact form are retained only as long as necessary to address your request.
5. Managing Your Data & Contact
You have full control over your local browser data and can clear your cookies and localStorage at any time through your browser's privacy settings. If you have questions about this Privacy Policy, please contact us at contact@checkmousedpi.online or visit our Contact Us page.