CalcTago
CalcTago
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Privacy Policy

Last updated: March 2026

Our Approach

CalcTago is built with privacy as a core principle. We collect the minimum data needed to operate, secure, and improve the website. We do not use tracking cookies, advertising scripts, or third-party analytics. We do use privacy-friendly first-party analytics to measure pageviews, on-site search usage, performance, and errors in aggregate.

Data Controller

This website is operated by Hologram shop s.r.o., V jámě 1371/8, 110 00 Praha, Czech Republic (Company ID: 01485105). For privacy-related inquiries, you can reach us at infotagoweb@gmail.com or through our contact page.

What We Collect

Server Logs and First-Party Analytics

Our web server automatically records basic access logs that include your IP address, the page requested, timestamp, referrer URL, and user agent string. We also process privacy-friendly first-party analytics data such as page paths, referrers, on-site search queries, search clicks, performance metrics, JavaScript errors, and a short-lived daily visitor/session identifier derived from a truncated IP address and user agent. We use this information solely to secure the site, understand aggregate usage, diagnose problems, and improve performance and usability. Analytics and related operational data are retained for up to 30 days.

Legal basis: Legitimate interest (Art. 6(1)(f) GDPR) — ensuring the security, reliability, and continuous improvement of the website.

What We Do Not Collect

  • We do not use cookies for advertising, cross-site tracking, or third-party analytics.
  • We do not use Google Analytics, Facebook Pixel, or any third-party advertising or analytics service.
  • We do not build advertising profiles and do not track you across other websites.
  • We do not share, sell, or transfer personal data to third parties for commercial purposes.
  • We do not use third-party fingerprinting, data brokers, or commercial audience enrichment tools.

Data Recipients

Your personal data may be processed by the following third-party service providers acting on our behalf:

  • Hetzner Online GmbH (Germany) — web hosting and server infrastructure. Data is stored on servers located in the European Union.
  • Google LLC (United States) — email communication via Gmail. Google participates in the EU-US Data Privacy Framework, ensuring an adequate level of data protection for transfers to the US.

Cookies

CalcTago uses one functional cookie (NEXT_LOCALE) to remember your language preference and may use browser local storage for on-site preference settings such as regional defaults. These technologies are used only for site functionality, do not track you across sites, and are not used for advertising. No consent banner is required for strictly necessary storage under applicable EU cookie rules.

Third-Party Links

CalcTago may contain links to third-party websites. Once you leave CalcTago, their privacy policy governs your data. We encourage you to review the privacy policies of any websites you visit.

Your Rights (GDPR)

If you are located in the European Economic Area (EEA), you have the following rights under the General Data Protection Regulation:

  • Right of access — You can request a copy of any personal data we hold about you.
  • Right to rectification — You can ask us to correct inaccurate data.
  • Right to erasure — You can ask us to delete your personal data.
  • Right to data portability — You can request your data in a structured, machine-readable format.
  • Right to object — You can object to processing based on our legitimate interests, including first-party analytics used to operate and improve the website.
  • Right to lodge a complaint — You have the right to lodge a complaint with the Czech Office for Personal Data Protection (UOOU, www.uoou.cz) or your local supervisory authority.

To exercise any of these rights, contact us at infotagoweb@gmail.com. We will respond within 30 days.

Data Security

We use industry-standard security measures to protect data, including HTTPS encryption for all traffic, secure server infrastructure hosted in Europe (Hetzner), and restricted access to server systems.

Changes to This Policy

We may update this privacy policy from time to time. Significant changes will be noted with an updated date at the top of this page.