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Legal

Privacy Policy

Last updated 29 October 2026

This Privacy Policy explains how deep4sol ("deep4sol", "we", "us" or "our") collects, uses and protects information when you visit deep4sol.com (the "Website") and use our free calculators and converters (the "Tools"). By using the Website, you agree to the practices described here.

1. Information we collect

Information you type into our Tools. The numbers and measurements you enter are processed in your browser to show your result. We do not save these inputs or link them to you.

Information you give us. When you contact us or suggest a tool, we collect the details you choose to share, such as your name, email address and message.

Information collected automatically. Like most websites, we and our service providers may collect technical data when you visit, including your IP address, browser type, device type, operating system, pages viewed, time spent on pages, and the website that referred you.

2. How we use your information

We use information to:

  • Operate, maintain and improve the Website and Tools
  • Reply to your messages and tool requests
  • Understand which tools are popular and how people use the site
  • Fix errors and keep the Website secure
  • Comply with legal obligations

We do not sell your personal information.

3. Legal basis for processing (EU and UK visitors)

If you are in the European Economic Area or the United Kingdom, we process your information based on: your consent (for example, for non-essential cookies); our legitimate interests in running and improving the Website; and, where relevant, to meet legal obligations.

4. Cookies

Cookies are small text files stored on your device. We use:

  • Essential cookies that make the Website work, such as remembering your cookie choices

You can control or delete cookies through your browser settings. Blocking some cookies may affect how the Website works.

5. How we share information

We only share information:

  • With service providers who help us run the Website, such as hosting, analytics, email and advertising partners, and only as needed for their service
  • When required by law, court order or government request
  • To protect the rights, safety and property of deep4sol, our users or others
  • As part of a merger, sale or transfer of the Website, in which case this policy will continue to apply

6. How long we keep information

We keep contact messages for as long as needed to answer them and for a reasonable period afterwards, usually no more than 24 months. We delete or anonymise information when we no longer need it.

7. How we protect information

We use reasonable technical and organisational measures, including HTTPS encryption, to protect your information. No method of transmission or storage is completely secure, so we cannot guarantee absolute security.

8. Your rights

Depending on where you live, you may have the right to:

  • Access the personal information we hold about you
  • Correct inaccurate information
  • Ask us to delete your information
  • Object to or restrict how we use it
  • Withdraw consent at any time, for example by changing your cookie settings
  • Complain to your local data protection authority

California residents: You have the right to know what personal information we collect, to request deletion, and not to be discriminated against for using these rights. We do not sell personal information.

To use any of these rights, email us at privacy@deep4sol.com. We will reply within 30 days.

9. Third-party links

Our Website may link to other websites, such as supplier or product pages. We are not responsible for their content or privacy practices. Please read their privacy policies before sharing information with them.

10. Children's privacy

The Website is not directed at children under 13, and we do not knowingly collect personal information from them. If you believe a child has sent us personal information, contact us and we will delete it.

11. Changes to this policy

We may update this Privacy Policy from time to time. When we do, we will change the "Last updated" date at the top of this page. Significant changes will be highlighted on the Website.

12. Contact us

If you have any questions about this Privacy Policy or how we handle your information, contact us: