Privacy Policy
Last updated: April 9, 2026
Short version: Our calculators run entirely in your browser — we never see, store, or transmit your date of birth or any calculation inputs. The only data we collect is standard analytics (page visits, browser type) to understand how the site is used. We do not sell your data. Ever.
1. Who We Are
Age of Calculator is operated by Lunaliz, a company registered in the Netherlands. In this policy, "we", "us", and "our" refer to Lunaliz and the Age of Calculator website at https://www.ageofcalculator.com.
As the entity that determines the purposes and means of processing personal data, Lunaliz acts as the data controller under the General Data Protection Regulation (GDPR) and equivalent laws in other jurisdictions.
For privacy-related questions, contact us at: info@lunalizbv.nl
2. What Data We Collect
2.1 Calculator Inputs (not collected)
All calculations — including your date of birth, the dates you enter for age difference calculations, and any other inputs — are processed exclusively in your browser using JavaScript. This data is never transmitted to our servers, never logged, and never stored. We have no access to what you calculate.
2.2 Analytics Data
We use Google Analytics 4 (GA4) to collect aggregated, anonymised information about how visitors use the website. This includes:
- Pages visited and time spent on each page
- Browser type, operating system, and device category
- Approximate geographic region (country / city level — derived from IP address, not stored as-is)
- Referral source (how you arrived at our site)
Google Analytics uses cookies to distinguish unique visitors. IP addresses are anonymised before storage. We do not enable Google's advertising features or cross-site tracking. You can opt out of Google Analytics tracking using the Google Analytics Opt-out Browser Add-on.
2.3 Advertising
We display advertisements provided by third-party ad networks. These networks may use cookies and similar tracking technologies to serve ads based on your interests and browsing history across different websites. We do not control these technologies. You can manage your ad preferences or opt out through:
- Your Online Choices (EU)
- Digital Advertising Alliance (US)
- Your browser's built-in privacy controls
2.4 Contact Communications
If you contact us by email, we collect your email address and the content of your message in order to respond to your enquiry. We do not add you to any mailing list unless you explicitly request it. We retain correspondence for up to 24 months unless you ask us to delete it sooner.
3. Legal Basis for Processing (GDPR)
Where the GDPR applies, we rely on the following legal bases:
- Legitimate interests (Article 6(1)(f)) — for analytics that help us understand and improve the service, where our interests in operating the site are not overridden by your interests or fundamental rights.
- Consent (Article 6(1)(a)) — for advertising cookies where required, and for any optional communications.
- Contract performance (Article 6(1)(b)) — where applicable, to respond to your contact requests.
4. Cookies
We use the following types of cookies:
| Cookie | Provider | Purpose | Duration |
|---|---|---|---|
| _ga, _ga_* | Google Analytics | Distinguish unique visitors; track session metrics | 2 years |
| Ad cookies | Ad network(s) | Interest-based advertising | Varies |
You can control cookies via your browser settings. Disabling cookies may affect the functionality of third-party services but will not affect the calculators, which work without cookies.
5. Data Sharing and Third Parties
We do not sell, rent, or trade your personal data. We share data only in the following limited circumstances:
- Google LLC — analytics data processed under Google's Data Processing Terms.
- Advertising partners — anonymised or pseudonymised data for ad serving.
- Legal requirements — if required by law, regulation, or valid legal process.
Where personal data is transferred outside the European Economic Area (EEA), we ensure adequate safeguards are in place (such as Standard Contractual Clauses).
6. Data Retention
We retain personal data only for as long as necessary for the purposes described in this policy:
- Analytics data — retained by Google for up to 14 months (our configuration).
- Email correspondence — retained for up to 24 months.
7. Your Rights
Depending on your location, you may have the following rights regarding your personal data. We are committed to honouring these rights regardless of where you are based:
- Right of access — you can request a copy of the personal data we hold about you.
- Right to rectification — you can ask us to correct inaccurate data.
- Right to erasure ("right to be forgotten") — you can request deletion of your data where we have no overriding legal obligation to retain it.
- Right to restriction — you can ask us to restrict processing in certain circumstances.
- Right to data portability — you can request your data in a structured, machine-readable format.
- Right to object — you can object to processing based on legitimate interests.
- Right to withdraw consent — where processing is based on consent, you can withdraw it at any time.
- Right not to be subject to automated decision-making — we do not use automated decision-making or profiling.
To exercise any of these rights, contact us at info@lunalizbv.nl. We will respond within 30 days. If you are in the EU/EEA, you also have the right to lodge a complaint with your local data protection authority.
California residents (CCPA/CPRA): You have the right to know what personal information we collect, the right to delete it, the right to opt out of its sale (we do not sell personal information), and the right to non-discrimination for exercising your rights.
8. Children's Privacy
Our website is not directed at children under 13 years of age, and we do not knowingly collect personal data from children. If you believe a child has provided us with personal data, please contact us and we will delete it promptly.
9. Security
We implement appropriate technical and organisational measures to protect any personal data we process. Our site is served over HTTPS. Because calculator inputs never leave your device, the primary security risk for your date of birth lies only with your own device and browser.
10. Changes to This Policy
We may update this policy from time to time. When we do, we will revise the "last updated" date at the top of this page. We encourage you to review this page periodically. Continued use of the site after changes constitutes acceptance of the updated policy.
11. Contact
For any privacy-related questions, requests, or complaints:
Lunaliz
Email: info@lunalizbv.nl