Summary in one paragraph
ProbLab does not collect personal data from you. We do not require an account, we do not store your inputs, and we do not run our own analytics. The only data collected on this site comes from third-party advertising (Google AdSense), which uses cookies and may use them to personalize ads. You can opt out of personalized advertising at any time via Google Ads Settings.
1. Data we do NOT collect
- No account registration (there is no account).
- No email capture (there is no newsletter form).
- No IP-address logging on our side.
- No inputs to any calculator are sent to a server — every calculation runs locally in your browser using JavaScript.
- No first-party analytics (no Google Analytics, no Plausible, no Matomo installed).
2. Google AdSense & third-party advertising
We display ads served by Google AdSense. Google, as a third-party vendor, uses cookies to serve ads on this site. Google's use of advertising cookies enables it and its partners to serve ads based on a user's visit to this site and/or other sites on the Internet.
- Users may opt out of personalized advertising by visiting Google Ads Settings.
- Users may opt out of some third-party vendors' use of cookies for personalized advertising by visiting www.aboutads.info.
- AdSense partners and vendors may use cookies, web beacons, and similar technologies to collect information about your activity on this site and other sites. This information may be used to provide advertising tailored to your interests (behavioral advertising).
Categories of data third-party ad vendors may process
- Information about your device and browser (user agent, screen size, language).
- Approximate geographic region (typically city/country level, derived from IP).
- Pages visited on this site and referrer information.
- Cookie identifiers set by Google.
3. Cookies in use on this site
| Cookie | Purpose | Set by |
|---|---|---|
| __gads, __gpi, IDE | Ad personalization, frequency capping, fraud prevention | Google AdSense |
| CONSENT | Stores your consent state (in EEA/UK) |
ProbLab itself does not set any cookies. Tailwind CSS (loaded from a public CDN) is purely a stylesheet; it does not set cookies.
4. EEA / UK visitors
If you are in the European Economic Area or the United Kingdom, Google is required to obtain your consent before using advertising cookies. AdSense typically shows a consent dialog (the "Consent Mode" prompt) on your first visit. By continuing to use the site after that prompt, you consent to the categories you selected.
5. Children's privacy
ProbLab is suitable for educational use, but we do not knowingly direct advertising to children under 13. If you are a parent and believe your child has interacted with personalized ads on this site, you can clear the cookies in your browser and adjust Google Ads Settings to disable interest-based advertising.
6. Your rights
Depending on your jurisdiction, you may have rights to access, correct, or delete personal data held about you. Because we do not hold personal data on our side, most requests are most efficiently directed to Google via Google Ads Settings or Google's advertising help page.
7. Changes to this policy
We may update this privacy policy from time to time. The "Last updated" date at the top will always reflect the latest revision. Material changes will be summarized in the About / Changelog page.
8. Contact
Privacy questions: privacy [at] problab.example.