Privacy Policy
Last updated: · Reviewed against sources listed below
Effective date: September 26, 2026
This privacy policy explains what information HerpMath (“we”, “us”) collects when you use herpmath.com, how we use it, and the choices you have.
Information we collect
- Calculator inputs. Numbers you enter into our calculators are processed in your browser. We do not store them on a server.
- Usage data. We use Google Analytics 4 to understand how visitors use the site, such as pages viewed, device type, approximate location (country or city) and which calculators are used. This data is aggregated and does not identify you by name.
- Email. If you email us, we receive your email address, your name if you include it, and your message. We use them only to reply to you.
- Preferences. Your unit choice (imperial or metric) is saved in your browser’s local storage. It never leaves your device.
Cookies and advertising
We use Google AdSense to show advertising. Third-party vendors, including Google, use cookies to serve ads based on your prior visits to this website or other websites. Google’s use of advertising cookies enables it and its partners to serve ads to you based on your visits to this site and/or other sites on the internet.
You can opt out of personalized advertising by visiting Google Ads Settings. You can also opt out of some third-party vendors’ use of cookies for personalized advertising at aboutads.info. To learn more, see how Google uses information from sites that use its services.
Visitors in the European Economic Area, the United Kingdom and Switzerland are shown a consent message from a Google-certified consent management platform before non-essential cookies are used.
Amazon affiliate cookies
Some links on this site are Amazon affiliate links. If you click one, Amazon may set a cookie to record that you came from HerpMath, so that we can earn a commission on qualifying purchases. This is governed by Amazon’s own privacy notice.
How we use information
- To operate, maintain and improve the site and its calculators.
- To understand which tools are most useful.
- To respond to messages you send us.
- To show advertising that helps keep the site free.
We do not sell your personal information, and we do not share it except with the service providers named above.
Your rights (CCPA and GDPR)
California residents have the right to know what personal information is collected, to request its deletion, and to opt out of the “sale” or “sharing” of personal information for cross-context behavioral advertising. You can use Google Ads Settings above or contact us to exercise these rights. We will not discriminate against you for doing so.
Visitors in the EEA and UK have the right to access, correct, delete or restrict the processing of their personal data, to object to processing, to data portability and to withdraw consent at any time. Our legal bases are your consent (for advertising and analytics cookies) and our legitimate interest in running the site (for security and basic operation). You may also complain to your local data protection authority.
Data retention
Analytics data is kept according to Google Analytics retention settings (14 months by default). Contact messages are kept only as long as needed to answer and follow up on your request.
Children’s privacy
HerpMath is a general-audience website written for adult reptile keepers. It is not directed to children under 13, and we do not knowingly collect, use or disclose personal information from children under 13, as defined by the U.S. Children’s Online Privacy Protection Act (COPPA). This includes online identifiers, such as cookies and device IDs, collected by our analytics and advertising partners.
If we learn that we have collected personal information from a child under 13 without verifiable parental consent, we will delete it as quickly as possible. If you are a parent or guardian and believe your child has given us personal information, please reach us through our contact page and we will delete it.
We do not knowingly sell or share the personal information of consumers under 16. In the EEA and UK, where the age of digital consent can be as high as 16, we do not knowingly process the personal data of children below that age without the consent of a parent or guardian.
Changes to this policy
We may update this policy from time to time. The effective date above shows when it was last changed.
Contact
For privacy questions or requests, please use our contact page.