How privacy works on this site

The Chronological Age Calculator is designed with privacy as the default. All calculations run entirely in your browser using JavaScript.

Your birth date, test date, and all results remain on your device. They are never sent to any server, transmitted over the network, or stored in any database.

We do not collect, process, or retain personally identifiable information (PII) related to your age calculations.

We use Google Analytics (GA4) to understand how visitors use the site—for example, which pages are viewed, how long users stay, and traffic patterns.

Google Analytics collects a hashed, anonymized IP address and browsing behavior. It does not identify you personally and does not track your calculator inputs.

We use Google AdSense for optional advertisements. AdSense may place cookies to understand ad performance.

If you contact us via email, we keep your email address and message to respond to your inquiry and maintain a support record.

The calculator itself does not use cookies to store your dates or results.

Your browser may store functional data locally (such as preferences) to improve your experience, but this data stays on your device.

Third-party services (Google Analytics, AdSense) may use cookies—review their privacy policies for details.

Aggregated, anonymized analytics data helps us understand usage patterns and improve the calculator's usability and performance.

We do not use this data to build profiles of individuals, target individuals for ads (beyond general site-based ad placement), or sell information to third parties.

We may use analytics to identify technical problems, optimize page speed, or plan new features.

Google Analytics (Google LLC): Collects anonymized browsing data. Review Google's privacy policy at https://policies.google.com/privacy

Google AdSense (Google LLC): Provides optional ads and may use cookies for ad targeting. Review Google's advertising policies at https://policies.google.com/technologies/ads

Fonts (Google Fonts): We load fonts from Google's CDN. Review Google's privacy practices at https://policies.google.com/privacy

We are not responsible for the privacy practices of third-party services, but we only use services we trust to handle data responsibly.

Because we do not collect your calculation data, there is no retention period for your dates or results.

If you email us, we retain your email and message for support and record-keeping purposes. You may request deletion of your email correspondence by contacting us.

Google Analytics and AdSense data are retained by Google according to their terms; typically 14 months for analytics data.

Right to Know: You have the right to know what data we collect about you. Because we do not collect calculation data, there is nothing to disclose about your calculator use.

Right to Delete: If you have contacted us via email, you may request deletion of your message. We will honor reasonable deletion requests.

Right to Opt-Out: You may disable Google Analytics and AdSense in your browser settings or use privacy extensions.

GDPR Compliance: For EU residents, we comply with GDPR's privacy-by-design principle. We process minimal data and have a lawful basis (legitimate interest in site improvement) for analytics.

CCPA Compliance: For California residents, we do not sell personal information. You have rights to know, delete, and opt-out, which we honor upon request.

Google Analytics and Google Fonts use servers worldwide. Your anonymized data may be processed in the United States or other jurisdictions.

We rely on Google's standard contractual clauses and adequacy determinations to ensure your data is protected even if transferred internationally.

This site is served over HTTPS (secure connection). Data in transit is encrypted.

Because we do not store calculation data, the primary security concern is protecting the integrity of the site itself—which we do through standard web security practices.

We recommend using strong passwords for any accounts and keeping your device and browser software updated.

This site is not directed to children under 13. We do not knowingly collect information from children.

If a parent or guardian believes we have collected data about a child under 13, please contact us immediately.

We may update this policy to reflect changes in our practices, technology, or legal requirements.

We will post updates on this page with the revised date. Material changes will be communicated through the site.

Your continued use of the site after changes are posted constitutes acceptance of the updated policy.

If you have questions, concerns, or requests related to privacy, please email support@chronologicalage-calculator.com

We take privacy seriously and will respond to requests within 10 business days.