A1C

Privacy Policy

Last updated: March 2026

Introduction

a1ccalculation.com ("we," "our," or "us") is committed to protecting your privacy. This Privacy Policy explains how we collect, use, and safeguard information when you visit our website at a1ccalculation.com.

Calculator Data

All calculations performed on our website happen entirely in your web browser using JavaScript. No health data — including A1C values, blood sugar readings, age, weight, height, or any other values you enter into our calculators — is ever sent to our servers or any third party. Your health information remains completely on your device and is not stored anywhere.

Information We Collect

We may collect the following non-personal information through analytics and advertising services:

  • Analytics data: Pages visited, time on site, referring website, browser type, device type, screen resolution, and approximate geographic location (country/region level). We use privacy-focused analytics that do not use cookies for tracking.
  • Advertising data: Our advertising partners (such as Adsterra) may use cookies or similar technologies to serve relevant ads. These partners have their own privacy policies.

Cookies

Our website may use the following types of cookies:

  • Essential cookies: Required for basic website functionality.
  • Analytics cookies: Help us understand how visitors use our site.
  • Advertising cookies: Used by advertising networks to serve ads. These are third-party cookies.

You can control cookies through your browser settings. Disabling cookies may affect the functionality of some features.

Third-Party Services

We use the following third-party services:

  • Cloudflare: For hosting, CDN, and security. Cloudflare may process basic request data (IP address, request headers) for security and performance purposes.
  • Adsterra: For advertising. Adsterra may use cookies to serve and measure ads.
  • Formspree: For processing contact form submissions. Only the data you voluntarily submit (name, email, message) is processed.

Data Security

We take reasonable measures to protect the information collected through our website. All connections to our website are encrypted using HTTPS (SSL/TLS) provided by Cloudflare.

Children's Privacy

Our website is not directed at children under 13. We do not knowingly collect personal information from children. If you are a parent or guardian and believe your child has provided personal information through our contact form, please contact us.

Your Rights

Depending on your jurisdiction, you may have the right to access, correct, delete, or restrict the processing of your personal data. Since our calculators do not collect personal data and we use minimal analytics, there is typically no personal data to manage. For contact form submissions, please reach out to us to request deletion.

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.

Contact Us

If you have questions about this Privacy Policy, please visit our Contact page.