Privacy
Updated: 19 September 2026
Statistics without cookies
KrolTech.eu uses no advertising trackers or analytics cookies. The server counts page views and daily browser estimates, not people. It hashes the IP address and browser information with a random salt that changes daily. Raw values are not saved in the statistics database, and visits are not linked across days or websites. Old hashes and salts are deleted at the next measurement; only daily totals remain. Shared connections can merge visits, and some automated traffic may go undetected. There are no user accounts.
Appearance and language
If you change the theme, we save only your choice of light or dark appearance in your browser’s local storage (localStorage). This is not a user identifier. You can remove it by clearing the site’s data. The language is determined by the address of the version you choose.
Hosting and contact
This website is operated by KrolTech Łukasz Król, based in Skawina, Poland. Contact: kontakt@kroltech.eu.
The server and hosting provider SEOhost process connection data, such as your IP address, request time and the requested page address, to deliver the website and protect the server.
If you email us, the information you provide will be used to handle your message and discuss your enquiry. We do not automatically add senders to marketing lists.
Legal basis and your rights
The data controller is KrolTech Łukasz Król, Skawina, Poland (tax ID 9442232002). Website operation and security, limited usage measurement and correspondence rely on our legitimate interests (GDPR Article 6(1)(f)). Enquiries concerning a contract also rely on Article 6(1)(b). Correspondence is kept while handling the matter and for the period needed to protect related legal claims; accounting documents are retained as required by law. Our hosting provider processes connection data for server operation and security. We do not sell data or make automated decisions about visitors.
Depending on the legal basis, you may request access, rectification, erasure, restriction or portability and object to processing based on legitimate interests. Contact kontakt@kroltech.eu. You may complain to the Polish supervisory authority, UODO. Providing email details is voluntary, but we need contact details to reply. We do not identify visitors solely to attribute anonymous statistical totals to them.
Other websites
Project links lead to separate websites. Each website describes its own privacy practices.
Snake leaderboard and contact form
After a game, you may choose to publish a nickname and score on the shared leaderboard. The server checks the recorded game moves. Do not use personal details as your nickname. Public scores remain until the leaderboard is removed or you request removal at kontakt@kroltech.eu; no account is created. The contact form sends your optional name or company, email address, subject and message to our mailbox to handle your enquiry. Short-lived tokens and hashed IP addresses limit abuse; they are deleted after 24 hours on the next request. We use no analytics cookies.