LumenCalculator.com (“we”, “us”) respects your privacy. This policy explains what we collect, why we collect it, and the choices you have. We do not sell your personal information for money.
Scope
This policy covers LumenCalculator.com and related pages we operate (the “Services”). By using the Services you agree to this policy and our Terms of Service.
What we collect
- Calculator inputs: Values you type into calculators are intended to be processed in your browser to show results. If a calculator uses a server request to compute a result, inputs are processed to return the result. We do not store those calculator inputs as a profile about you.
- Contact details you give us: If you email us or submit a form, we collect what you provide (for example, name, email address, and message content).
- Usage data: We and our providers may collect information about how the site is used, such as pages viewed, approximate location (region or city), device and browser type, and referral source.
- Log data: Our servers may record standard log data for security and troubleshooting, such as IP address, user agent, and request timestamps.
How we use information
- Provide the Services: Run calculators, show results, and operate the site.
- Improve and secure: Fix bugs, measure performance, prevent abuse, and keep the site reliable.
- Support: Respond to messages and requests you send us.
- Advertising and measurement: Show ads and measure how ads perform, where allowed.
Cookies and similar technologies
We and our partners use cookies, local storage, and similar technologies to run the site, remember settings, understand usage, and support advertising and measurement.
Advertising cookies: Third party vendors, including Google, use cookies to serve ads based on a user’s prior visits to this site and/or other sites. Google’s advertising cookies allow Google and its partners to serve ads based on visits to this site and/or other sites on the internet.
You can control cookies using browser settings. Depending on your location, you may also see a consent or cookie settings banner that lets you choose how cookies are used. If you disable cookies, some features may not work as intended.
Advertising and analytics providers
- Google AdSense: We use Google AdSense to display ads. Google may use cookies and similar technologies for ad delivery, frequency capping, fraud prevention, and measurement, and for personalised ads where permitted by law and your choices.
- Google Analytics (GA4): We may use Google Analytics to understand site usage (for example, which pages are visited and how the site performs). We do not send calculator input values to analytics.
Useful links for choices and more information:
- Google Ads Settings
- Cookie information for Google’s ad products
- YourAdChoices
- NAI opt-out
- Google Privacy Policy
Sharing
We share information with service providers that help us run the Services (for example, hosting, content delivery, analytics, email, and advertising). They may process information only to provide services to us and must protect it.
We may also share information if required by law, or to protect rights, safety, and security.
International transfers
Your information may be processed in countries other than your own. This can include countries where our service providers operate. Where required, we use appropriate safeguards for international transfers.
Retention
- Calculator inputs: Not stored by us as user profiles. If server processing is used, it is used to return a result.
- Contact messages: Typically kept up to 24 months, then deleted or archived.
- Logs and analytics: Kept for security, troubleshooting, and measurement based on provider and configuration settings.
Your rights
Australia
You may request access to and correction of personal information we hold about you.
EEA and UK
You may request access, correction, deletion, restriction, and portability, and object to certain processing. Where we rely on consent, you can withdraw consent at any time via cookie settings or your browser.
California and other US state laws
You may have rights to request access, deletion, or correction of personal information, and to opt out of certain sharing for advertising. We do not sell personal information for money. If you want to opt out of advertising cookies, use cookie settings (if shown) and your browser controls, and use the provider opt-out links above.
Children’s privacy
The Services are not directed to children under 13. We do not knowingly collect personal information from children under 13. If you believe a child has provided personal information, contact us and we will delete it.
Security
We use reasonable technical and organisational measures to protect personal information. No method of transmission or storage is completely secure.
Links to other sites
The Services may link to other websites. Their privacy practices are their own. Review their policies.
Changes to this policy
We may update this policy. We will post changes here and update the “Last updated” date.