Privacy policy

Last updated: 2026-06-12 — Compliant with GDPR EU 2016/679 + Spanish LOPDGDD 3/2018 + UK GDPR / Data Protection Act 2018 (if UK users).

1. Data controller

• Identity: José Manuel Volante González
• Tax ID (NIF): 49108819R
• Postal address: C/ Zafra 5, 21310 La Zarza (Huelva), España
• Email: microtools.contact@gmail.com
• GDPR rights email: microtools.contact@gmail.com

2. Purposes of processing

1. Site operation: serve pages and maintain availability.
2. Inquiry handling: respond to communications sent to the contact email.
3. Legal compliance: respond to lawful requests from authorities.

No automated decisions producing legal effects (GDPR Art 22). No commercial profiling. No accounts, no registration, no purchases on this site.

3. Legal basis

• Site operation: legitimate interest (Art 6.1.f GDPR).
• Inquiries: consent (Art 6.1.a GDPR).
• Legal compliance: legal obligation (Art 6.1.c GDPR).
• Affiliate links: legitimate interest (Art 6.1.f GDPR) — funding a free service at no cost to the user.

4. Categories of data

• Technical data: IP anonymised by Cloudflare, User-Agent, page visited, timestamp. Cloudflare Web Analytics is cookieless.
• Identification data if you contact us by email.
• No special categories processed.

Your calculator inputs (battery capacity, airline) are processed entirely in your browser and are never transmitted to us.

5. Retention

• Cloudflare technical logs: 7 days.
• Aggregated Web Analytics: 6 months.
• Email correspondence: up to 2 years after last interaction.

6. Recipients

• Cloudflare, Inc. (hosting + analytics + CDN, USA, with Standard Contractual Clauses).
• Amazon Associates when you click an affiliate link — referral identifier only, no personal data.
• Public authorities when legally required.

No data is sold or shared for advertising. When you click an affiliate link (Amazon Associates), the partner receives a referral identifier (affiliate tag embedded in the URL) that attributes any purchase to this site. No personal data is transmitted by us beyond what any visit to the destination URL involves (User-Agent, IP, HTTP headers). Data processing on the destination site is governed by that third party's privacy policy.

7. User rights

Access, rectification, erasure, restriction, portability, objection, and withdrawal of consent. To exercise, email microtools.contact@gmail.com with "GDPR Request" in the subject and ID copy attached.

8. Complaints

• Spain: Agencia Española de Protección de Datos — https://www.aepd.es/
• UK: Information Commissioner's Office — https://ico.org.uk/
• EU: your national supervisory authority.

9. Automated decisions

No automated decisions producing legal effects (GDPR Art 22).

10. Changes

This policy may be updated for legal or operational reasons. The version in force is always the one published at this URL with the date above.

Contact

For data-related questions: microtools.contact@gmail.com.