Premium Bonds Toolkit

Privacy Policy

Last Updated: February 2, 2026

1. Introduction

This Privacy Policy explains how Premium Bonds Calculator ("we", "us", or "our") collects, uses, and protects information when you use our website (the "Service").

2. Information We Collect

2.1 Automatically Collected Information

When you visit our Service, we automatically collect:

  • Usage Data: Pages visited, time spent, browser type, device information
  • Analytics Data: Collected via Google Analytics (see Section 5.1)
  • Technical Data: IP address, browser settings, operating system

2.2 Information You Provide

We may collect information you voluntarily provide:

  • Investment Amounts: When using the calculator (not stored on our servers)
  • Email Address: If you contact us via email
  • Feedback: If you provide feedback or suggestions

2.3 Information We Do NOT Collect

Important: Your Premium Bond numbers are never transmitted to our servers. The bond checker processes everything locally in your browser. We have no access to your bond numbers, holdings values, or checking results.

3. How We Use Your Information

We use collected information for:

  • Providing and maintaining the Service
  • Improving user experience and functionality
  • Analyzing usage patterns and trends
  • Responding to your inquiries
  • Detecting and preventing technical issues

4. Data Storage and Processing

4.1 Calculator and Checker Data

Important: All calculator computations and bond checking are performed in your browser. Your investment amounts, bond numbers, and calculations are NOT transmitted to or stored on our servers.

4.2 Server-Side Data

Usage analytics and technical data are processed and stored by our third-party service providers (see Section 5).

5. Third-Party Services

5.1 Services We Use

  • Google Analytics: Website analytics (Privacy Policy)
  • Netlify: Website hosting (Privacy Policy)
  • CDN Providers: JavaScript libraries for calculator functionality

5.2 External Links

Our Service contains links to external websites, including:

  • NS&I official website (www.nsandi.com)
  • Buy Me A Coffee (support platform)
  • Government resources

We are not responsible for the privacy practices of external websites. We encourage you to review their privacy policies.

6. Data Security

We implement appropriate security measures to protect your information:

  • HTTPS Encryption: All data transmitted between your browser and our servers is encrypted
  • Secure Hosting: Our website is hosted on secure, industry-standard infrastructure
  • No Personal Data Storage: We do not store your investment amounts, bond numbers, or financial calculations
  • Limited Data Collection: We collect only the minimum data necessary for Service operation

However, no method of transmission over the internet is 100% secure. While we strive to protect your information, we cannot guarantee absolute security.

7. Data Retention

We retain information for the following periods:

  • Analytics Data: Retained by Google Analytics according to their data retention settings (typically 26 months)
  • Email Communications: Retained as long as necessary to respond to your inquiry
  • Calculator/Checker Data: Not retained - all calculations occur in your browser

8. Your Rights

You have the right to:

  • Access information we hold about you
  • Request correction of inaccurate information
  • Request deletion of your information (subject to legal obligations)
  • Object to processing of your information
  • Opt-out of analytics tracking (via browser settings or extensions)

9. Cookies and Analytics

We use Google Analytics to understand how visitors use our site. This helps us improve the Service and identify technical issues. Google Analytics uses cookies to collect anonymous information about your visit, including:

  • Pages you visit and time spent
  • How you arrived at our site
  • Your general geographic location (country/city level)
  • Device and browser information

This analytics data is essential for maintaining and improving the Service. It helps us understand which features are useful, identify errors, and prioritise development work. The data collected is anonymous and cannot be used to identify you personally.

By continuing to use this site, you acknowledge our use of analytics cookies. If you prefer not to be tracked, you can:

  • Use your browser's "Do Not Track" setting
  • Install a browser extension such as Google Analytics Opt-out
  • Disable cookies in your browser settings (may affect site functionality)

10. Children's Privacy

Our Service is not intended for children under 13. We do not knowingly collect information from children. If you believe we have collected information from a child, please contact us immediately.

11. Changes to This Policy

We may update this Privacy Policy from time to time. We will notify you of changes by posting the new Privacy Policy on this page and updating the "Last Updated" date.

12. Contact Us

If you have questions about this Privacy Policy, please contact us at: support@pbprizes.com

Summary
Your privacy matters. Your bond numbers and financial calculations never leave your browser. We use Google Analytics to improve the site, but this data is anonymous and doesn't include any of your Premium Bonds information.