Martijn Holtes
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Privacy Policy MartijnHoltes.com

Effective date: 16 July 2026 (last updated)

1. Introduction

Welcome to my website (https://www.martijnholtes.com/). I am committed to protecting your personal information and your right to privacy. If you have any questions or concerns about this privacy policy or how I handle your personal information, please contact me at martijn@martijnholtes.com.

2. Information I Collect

I collect personal information that you provide to me voluntarily when you express an interest in my services, take part in activities on the website, or otherwise contact me.

The personal information I collect includes:

  • Name and contact data: your name and email address when you sign up for my newsletter or fill in the contact form.

I also automatically collect limited technical data (such as your IP address and browser information) through analytics — see section 5.

3. How I Use Your Information

I use the information I collect or receive to:

  • Send you marketing and promotional communications: if this matches your marketing preferences, I may use the information you send me to keep you informed about my work and services. You can opt out of my marketing emails at any time using the unsubscribe link in every email.
  • Respond to your inquiries and provide support: I use your information to answer your questions and help with any issues relating to my services.

4. Legal Basis for Processing (GDPR/AVG)

Under the General Data Protection Regulation, I process your personal information on the following legal bases:

  • Consent — for sending you newsletters and marketing emails, and for non-essential cookies. You can withdraw your consent at any time.
  • Legitimate interest — for responding to your inquiries and keeping my website secure and functional.

5. Cookies and Google Analytics

I use Google Analytics to understand how my website is used so I can improve it. Google Analytics uses cookies and collects data such as your IP address, device, and browsing behaviour. This data is processed in aggregated form to show me website trends, not to identify you personally, and IP addresses are anonymised where supported.

You can refuse or withdraw consent for non-essential cookies at any time through the cookie settings on the website or your browser settings.

6. Will Your Information Be Shared With Anyone?

I do not sell your personal information. I only share it with third-party service providers who help me run this website and my communications (for example, my website host, email/newsletter provider, and Google Analytics), and only to the extent needed to provide those services. I may also disclose information where required by law.

7. Data Retention

I keep your personal information only for as long as needed for the purposes described in this policy — for example, I keep your newsletter details until you unsubscribe, and contact form messages for as long as needed to handle your request and for a reasonable period afterwards. When it is no longer needed, I delete or anonymise it.

8. Your Privacy Rights

You have the right to:

  • access the personal information I hold about you;
  • correct inaccurate information;
  • request deletion of your information;
  • object to or restrict processing;
  • withdraw consent at any time (this does not affect processing done before you withdrew it);
  • request a copy of your data in a portable format.

To exercise any of these rights, contact me at martijn@martijnholtes.com.

If you believe I have not handled your personal information properly, you also have the right to lodge a complaint with the Dutch Data Protection Authority (Autoriteit Persoonsgegevens, autoriteitpersoonsgegevens.nl).

9. Data Security

I have put in place appropriate technical and organisational measures designed to protect your personal information. However, no method of transmission over the internet is 100% secure, and I cannot guarantee absolute security.

10. Changes to This Privacy Policy

I may update this privacy policy from time to time — for example, to reflect changes in my practices or for operational, legal, or regulatory reasons. I will post any changes on this page and update the effective date above. Please review this policy periodically.

11. Contact Me

If you have questions or comments about this policy, contact me at:

Email: martijn@martijnholtes.com