Cookie policy
Published: 1 August 2026
01
What cookies are
Cookies are small text files a website stores in your browser. On the next request the browser sends them back, which is how a site “remembers” your earlier settings or recognises that it is the same session. Local storage (localStorage) works similarly, except the data stays on your device and is not sent to the server automatically.
This site uses both, but sparingly. Below is the full list of what gets stored, and which of it needs your consent.
02
What exactly this site stores
Strictly necessary — no consent needed. Without these the site would not work the way you expect:
- your theme preference (light or dark) — kept in the browser's local storage under the key “theme”. It contains no personal data and is never sent to any server,
- a record of your cookie choice — kept in local storage under the key “jz-consent”. It holds the decision and the date it was made, nothing else. Without storing the decision it could not be honoured: the banner would ask again on every visit and refusing would achieve nothing.
Both values live only in your browser rather than in a cookie, so neither is attached to any request sent to the server. This site sets no cookies of its own.
Storing this does not require consent. The ePrivacy rules — Article 173 of the Polish Telecommunications Law, since replaced by the corresponding provisions of the Electronic Communications Law — exempt storage that is strictly necessary to provide a service the user has explicitly requested.
Analytics — consent only. Loaded only after you accept them in the banner:
- _ga — a cookie set by Google, holding a pseudonymous identifier that distinguishes repeat visits from the same browser from new ones,
- _ga_<container-id> — a cookie set by Google, holding session state for a specific Google Analytics 4 property.
We set both cookies to expire after 180 days — the same period the stored consent is valid for, so they cannot outlive the decision that allowed them. That is shorter than Google's own default. They are used to count sessions and to tell new visits from returning ones. They contain no name, no email address and nothing you type into the contact form.
Withdrawing consent does not merely stop future collection: any of these cookies already written are deleted at the same time.
03
Consent: giving it and changing it
On your first visit you will see a banner asking about analytics. Until you choose, no analytics script is loaded: the Google Consent Mode v2 signals default to “denied”, so no decision means no consent.
Refusing is as easy as accepting: both options sit in the banner as equals, one click each, with neither favoured over the other.
You can change your mind at any time. The “Cookie settings” link in the site footer reopens the same panel; withdrawal applies going forward and does not affect the lawfulness of processing carried out beforehand.
A stored decision is valid for 180 days, roughly six months. After that the banner asks again — a choice made half a year ago says very little about what you want today.
The banner also returns if the set of categories we ask about changes. An earlier answer would then relate to a question you were never asked, so it stops counting.
04
How to clear or block cookies
Regardless of the settings on this site, you can manage cookies in the browser itself — clear stored data, block third-party cookies, or have everything wiped when you close the window:
- Chrome / Edge: Settings → Privacy and security → Cookies and site data,
- Firefox: Settings → Privacy & Security → Cookies and Site Data,
- Safari: Settings → Privacy → Manage Website Data.
Clearing this site's data also removes the record of your cookie choice: on your next visit the banner will reappear and the site will fall back to its default theme.
05
Google's role
Visitor statistics go to Google Ireland Limited, which processes them on our behalf as a processor. Google does state, however, that some operations on data collected through its services are carried out for its own purposes — maintaining and securing its infrastructure, for instance — and that it then acts as a separate controller.
The terms on which Google does this are set out in its own privacy policy and in the Google Analytics terms of service. Both are published by Google and are the authoritative source on that point.
If you would rather your visits were not counted at all, simply decline in the banner. The site behaves exactly the same either way.