Last updated · October 17, 2026
Privacy Policy
What we collect, what we do not, and what is yours to ask for.
At Esoteric Numbers (https://www.esotericnumbers.com), your privacy matters. This Privacy Policy explains what information we collect, how we use it, and your rights regarding that information. The free calculators run entirely in your browser — for those, your name and birth date are never sent to our servers. When you order a personalised report (paid or free), create an account, or save people to your profile, we store the details you submit for that service, encrypted at rest; personalised report narratives are generated by AI models running on our own self-hosted hardware, never sent to third-party AI providers. The site is supported by advertising served by Google AdSense; the Advertising section explains what that involves and how to opt out of personalised ads. The sections below spell out each case.
Information We Collect
What lands in our database when you use the site, and what stays only with you.
You do not need an account to use our free calculators. Any name or birth date you enter into a calculator is processed entirely in your browser and is never sent to or stored on our servers. This browser-only guarantee does not cover the optional report services: ordering a paid report or requesting the free emailed report sends us the name(s), birth date(s), and email address you submit, and saving people to an account stores their name and birth date. All of it is encrypted at rest.
If you choose to create an account, we collect your email address and, optionally, your name and birth date. This data is encrypted at rest and is never shared or sold.
We automatically collect anonymous usage data through cookies and similar technologies, including your IP address (anonymized), browser type and version, device type, operating system, pages visited, time spent on pages, and referring URL.
This anonymous data is collected solely to understand how visitors use the site and to improve the experience.
Cookies and Tracking Technologies
The small files we set, why we set them, and how to switch them off.
Cookies are small text files stored on your device. We use cookies for analytics and remembering your preferences (such as language and color mode).
We use a Consent Management Platform (ConsentManager) to obtain your consent before activating any non-essential cookies. You can change your cookie preferences at any time via the consent banner.
Essential cookies are required for the site to function properly, such as storing your language preference. These do not require consent.
Advertising cookies are set by Google AdSense and its partners only after you consent through the banner; until then, any ads shown are non-personalised. See the Advertising section for details and opt-out links.
Analytics cookies are only activated after you give explicit consent through the cookie banner.
Third-Party Services
The tools we rely on, and the boundaries of what they see.
Google Analytics (GA4) — We use Google Analytics to collect anonymous statistics about site traffic and usage patterns. Google Analytics may set cookies on your device. Google's privacy policy applies to data collected by their service.
Google AdSense — We use Google AdSense to display advertisements. Google and its partners may set cookies to serve ads based on your visits to this and other websites; see the Advertising section for how this works and how to opt out.
ConsentManager — Our consent management platform manages your cookie preferences and ensures compliance with privacy regulations.
Sentry — We use Sentry for error monitoring to detect and fix technical issues. Sentry collects anonymous error data and does not track individual users.
Stripe — Payments for reports are processed by Stripe. Your card details go directly to Stripe and never touch our servers; we receive your email address and payment status so we can deliver what you bought. Stripe's privacy policy applies to the payment itself.
Email delivery — Transactional emails (receipts, report download links, account messages) are sent through our email provider, which processes your email address for delivery only.
Advertising (Google AdSense)
The ads that keep the free tools free, who serves them, and how to say no to personalised ones.
We show advertisements served by Google AdSense to help keep the free calculators and guides free. Google is a third-party vendor that uses cookies and similar technologies (such as device identifiers) to serve ads on this site.
Google's use of advertising cookies enables it and its partners to serve ads to you based on your visit to this site and to other sites on the internet. Google may collect information such as your IP address, approximate location, device and browser type, and the pages you view here.
In the European Economic Area, the United Kingdom and Switzerland, no advertising cookies are set and only non-personalised ads are shown until you give consent through our cookie banner (ConsentManager, an IAB TCF-registered consent management platform). You can change or withdraw that choice at any time via the cookie settings link in the footer.
You can opt out of personalised advertising from Google at any time in Google's Ads Settings (https://www.google.com/settings/ads). You can opt out of some other third-party vendors' use of cookies for personalised advertising at https://www.aboutads.info/choices and, in Europe, at https://www.youronlinechoices.eu.
Google's advertising partners may also use cookies on this site. The list of ad technology providers Google works with is published at https://support.google.com/adsense/answer/9012903, and Google's own privacy practices are described at https://policies.google.com/technologies/ads. We do not have access to the data these vendors collect, and we do not combine it with any account or report data you give us.
How We Use Your Information
The purposes we hold ourselves to, and the things we promise not to do.
To provide and maintain the website and its numerology tools.
To analyze anonymous usage trends and improve site content and performance.
To detect and fix technical errors using Sentry.
If you have an account, to save your profiles and provide personalized features such as forecast history and saved people.
We never sell, trade, or share your personal data with third parties for their own marketing purposes. Advertising on this site is served by Google AdSense, which uses cookies as described in the Advertising section; we do not pass Google any account, name, birth date or report data.
Account Data & Encryption
What protects your stored data, and the limits of that protection.
If you create an account, your name and birth date are encrypted at rest on our servers using industry-standard encryption.
You can delete your account and all associated data at any time from your account settings — no questions asked.
If you only use the free calculators — no account, no report order — no personal data is collected or stored.
Personalised Reports & AI Processing
What a personalised report stores, where the AI that writes it runs, and how to erase it.
When you order a personalised report (paid, or the free mini report), we store the name(s), birth date(s), and email address you submit, encrypted at rest, so we can generate the report and keep your download link working.
Paid report narratives are generated by AI language models that run on our own self-hosted hardware. Your name and birth date are included in the generation prompt so the narrative can be personalised; that processing stays on infrastructure we operate and is not sent to third-party AI providers.
For compatibility reports, the second person's name and birth date you submit are processed the same way — please make sure you have their permission before ordering.
AI-generated report text is stored with your report so you can re-download it. You can request deletion of a report and its inputs at any time via the contact page or your account.
Data Retention
How long we keep what we keep, and when it disappears.
If you only use the free calculators — no account, no report order — no personal data is collected or retained. Guest report orders retain the submitted details so your download links and receipts keep working; you can request deletion at any time.
If you have an account, your data is retained until you choose to delete it.
Anonymous analytics data is retained according to Google Analytics' default retention settings (14 months).
Cookie preferences are stored locally on your device and can be cleared at any time through your browser settings or the consent banner.
Your Rights
What you can ask of us, at any time, with no friction.
You have the right to accept or refuse non-essential cookies at any time via the cookie consent banner.
You can refuse or withdraw consent to personalised advertising at any time through the cookie banner, and opt out of Google's ad personalisation in Google's Ads Settings (https://www.google.com/settings/ads).
You can clear all cookies through your browser settings.
If you are in the European Economic Area (EEA), you have the right to access, rectify, or erase any personal data we may hold, the right to restrict or object to processing, and the right to data portability under the GDPR.
If you are a California resident, you have additional rights under the CCPA, including the right to know what data is collected and the right to request deletion.
To exercise any of these rights, contact us at the email address listed below.
Children's Privacy
Who this site is intended for, and what we will not collect.
Changes to This Policy
How we will tell you when this policy changes.
We may update this Privacy Policy from time to time. Any changes will be posted on this page with an updated revision date.
We encourage you to review this page periodically to stay informed about how we protect your privacy.
Contact Us
If anything here is unclear, or if you want to invoke a right above.
If you have questions or concerns about this Privacy Policy, please visit our Contact page or email us at the address provided there.