LEGAL
Last updated: 6 October 2026
The data controller is Tamás Perencz, the operator of perencz.hu (operator details: see the Imprint). Contact: info@perencz.hu.
Google Analytics (GA4): loaded ONLY after your explicit consent (the "Accept" button on the cookie banner at the bottom of the page) - before that, no Google script runs and no cookie is set. Once accepted, it measures page views, your approximate (country/city-level) location and device/browser type, retained per Google's own settings. Consent can be withdrawn at any time (see below). Legal basis: consent (GDPR Art. 6(1)(a)).
IP-based approximate location: for the "your approximate location" marker in the 3D Solar System view, on every visit we automatically look up your approximate (city-level) position from a third-party service (geojs.io) based on your IP address, and cache the response in your browser's local storage (localStorage) for 24 hours. This is NOT a cookie, just data stored on your own device that we do not forward elsewhere. Legal basis: legitimate interest (displaying this feature) - if you would rather this not run, you can disable JavaScript for this site in your browser, or let us know and we will consider adding an opt-out toggle.
Other features of the 3D scene (upcoming-launch calendar, live satellite orbits, live cloud imagery, place-name search) call public, keyless APIs (e.g. The Space Devs, CelesTrak, NASA GIBS, OpenStreetMap Nominatim). These calls do not send any personal data about you, but as with any network request, your IP address reaches that (non-affiliated) provider - this is an inherent part of browsing, not targeted data collection.
Embedded YouTube videos: the Formula 1 race pages show videos from the perencz.hu YouTube channel. The player loads only on click: until then nothing is downloaded from YouTube or Google (thumbnails are served from perencz.hu's own server). When you click play, the video loads from youtube-nocookie.com and YouTube/Google receives your IP address and browser data (details in section 5). Legal basis: your explicit click, a deliberate action requesting the content.
Local storage: your theme (light/dark), language, 3D-view layer toggles, and the Playground (PHP experiments) demo states are stored only on your own device, never sent anywhere, and are not personal data.
Contact: the Contact page simply opens a "mailto:" link - the site itself does not collect, store or transmit any form data. The email you send is handled by your own and our mail systems, which this policy does not cover.
The only marketing/statistics cookie is set by Google Analytics, and only after acceptance. Your decision (accepted/declined) is remembered in your browser's local storage (localStorage), so you are not asked again on every visit. You can change your choice at any time with the button below.
If Google Analytics is accepted, the data is processed on Google's infrastructure, which may involve servers outside the European Union - Google does this under its own EU-approved Standard Contractual Clauses (SCCs). The same applies to an embedded YouTube video if you start it (see section 5). No other data transfer takes place.
Videos on the perencz.hu YouTube channel (youtube.com/@perenczhu) are uploaded by a private upload tool used only by the site operator, using YouTube API Services (the YouTube Data API). The tool only handles our own videos, their metadata (title, description, tags, thumbnail) and the channel's own playlists.
The tool does not access any other users' or channels' data, and it does not collect, store or share any data about visitors of this website with YouTube or Google. The OAuth credentials needed for access are stored only on the operator's own computer and are never shared with third parties.
By using YouTube API Services we agree to and comply with the YouTube Terms of Service (https://www.youtube.com/t/terms). Google's processing of data is governed by the Google Privacy Policy (https://policies.google.com/privacy). Access granted to the upload tool can be revoked at any time in the Google Account security settings (https://security.google.com/settings/security/permissions).
Embedded videos on the website: on the Formula 1 race pages, videos load from youtube-nocookie.com (YouTube's privacy-enhanced embed mode) ONLY after you click the play button. Until then your browser requests nothing from YouTube or Google, and thumbnails are served by perencz.hu's own server. After you click, YouTube/Google receives your IP address and browser data (e.g. browser type, language, the address of the embedding page) and processes it under its own policies, which may also involve identifiers stored on your device (cookies, local storage). This is governed by the Google Privacy Policy (https://policies.google.com/privacy). If you prefer not to, do not start the video; everything on the site works without it, and the video can also be opened on YouTube via the "Open on YouTube" link.
Under the GDPR you have the right to request information about the data we process, request its correction or deletion, object to the processing, and withdraw your consent at any time (this does not affect the lawfulness of processing before the withdrawal). You can send such a request to info@perencz.hu.
If you believe our data processing is unlawful, you may lodge a complaint with the Hungarian National Authority for Data Protection and Freedom of Information (NAIH): 1055 Budapest, Falk Miksa utca 9-11., Hungary, ugyfelszolgalat@naih.hu, naih.hu.
This policy is updated whenever the site's actual operation changes. This document does not constitute legal advice - it is an accurate description of the site's actual technical operation, verified as described above.
This site uses Google Analytics to measure visits. This requires your consent - see the privacy policy for details. Privacy Policy