Privacy Policy

What Data We Collect

NPKGuide does not collect personal information. We do not require user accounts, logins, or registration. The calculator tools run entirely in your browser and no calculation data is sent to our servers.

Cookies

We use a single localStorage entry (npk-theme) to remember your light or dark mode preference. This is not a cookie and is not shared with any third party.

If advertising is enabled in the future, third-party advertising partners may use cookies and similar technologies to serve ads based on your prior visits to this site or other websites. You can opt out of personalized advertising by visiting Google Ad Settings.

Analytics

This site uses Google Analytics to understand which pages are most useful and how visitors interact with the site. Google Analytics collects data such as page views, session duration, general geographic region, and device type. This data is aggregated and anonymized. No personally identifiable information is collected.

Google Analytics uses cookies to distinguish unique users. For more information, see Google's privacy policy. You can opt out of Google Analytics by installing the Google Analytics Opt-out Browser Add-on.

Advertising

This site may display advertisements through third-party advertising services such as Google AdSense in the future. If enabled, these services may use cookies, including the DoubleClick cookie, to serve ads based on your visits to this site and other sites on the Internet.

You may opt out of personalized advertising by visiting Google Ad Settings. You can also opt out of third-party vendor cookies for personalized advertising by visiting the Network Advertising Initiative opt-out page.

For more information about how Google uses data, visit How Google uses data when you use our partners' sites or apps.

Third-Party Services

This site is hosted on Cloudflare Pages. Cloudflare may collect standard web server logs (IP addresses, user agents) as part of their hosting service. See Cloudflare's privacy policy for details.

We use Google Fonts served via their CDN. Google may collect usage data as described in their privacy policy.

External Links

This site links to university extension services, the USDA, and other authoritative sources. We are not responsible for the privacy practices of external websites. We encourage you to review their privacy policies.

Children's Privacy

This site is not directed at children under 13. We do not knowingly collect information from children.

Changes to This Policy

We may update this privacy policy from time to time. Changes will be posted on this page with an updated revision date.

Contact

Questions about this privacy policy? Email us at [email protected] or visit our contact page.