1.What this policy covers
This policy lists everything the website kouryer.com and the Panel store in your browser: cookies, the browser's local storage and the app cache.
It complements the Privacy Policy, which explains how Kouryer processes personal data.
We use no analytics, advertising, tracking pixels or social media plugins. Everything we store is our own and serves the working of the Website or the Panel.
2.What these technologies are
A cookie is a short piece of text a website stores in your browser and sends back to the server on later visits.
Local storage (localStorage) keeps data in the browser for a single domain. The data is not sent to the server and stays until you delete it.
A service worker and the app cache (Cache Storage) let you install the Panel as an app and show a message when there is no network connection.
3.What we store
The full list:
| Name | Type | When and why | How long |
|---|---|---|---|
kouryer-lang | cookie | after you change the language with the switcher on the Website or in the Panel; remembers your choice so that the main address opens your language version | 365 days |
kouryer-theme | local storage | after you choose the light or dark theme; remembers it for the Website and the Panel | until you clear it in the browser |
kouryer-cookie-notice | local storage | after you close the cookie notice; stores the date so that the notice does not come back | until you clear it in the browser |
kouryer-session | cookie, not readable by page scripts | after you sign in to the Panel; signed session data: session and account identifiers, email, name, company, website, Plan and language | 14 days or until you sign out |
kouryer-campaign | cookie | after you pick a campaign in the Panel header; keeps the choice across sections | 30 days, removed when you sign out |
sidebar_state | cookie | after you collapse or expand the Panel sidebar | 7 days |
/sw.js | service worker | on your first visit to the Panel; handles the offline page and push notifications | until you clear site data in the browser |
kouryer-shell-v1 | app cache | on your first visit to the Panel; the offline page, icons and static app files (scripts and styles), with no account data | until the next app version or until you clear site data |
| push subscription | browser setting | only after you turn on notifications in the Panel; the address at which your browser's push service delivers notifications | until you turn notifications off |
Everything in the table is set only by kouryer.com. If you just browse the Website without changing the language or theme, nothing is stored in your browser.
4.Legal basis and consent
Every item in the table is strictly necessary for a service you explicitly ask for: remembering your chosen language and theme, closing the notice, signing in to the Panel and running the app. The law does not require consent for such storage (Article 5(3) of Directive 2002/58/EC, Article 399 of the Polish Electronic Communications Law, and regulation 6 of PECR in the United Kingdom), which is why we show no consent banner.
If we ever add a tool that requires consent, we will ask for it on the Website first and update this policy.
5.How to delete or block
You can delete cookies, local storage and app data in your browser settings, under site data. You can uninstall the app like any other app on your device.
You can block cookies in your browser. The Website will still work but will not remember your language and theme, and signing in to the Panel is not possible without the kouryer-session cookie.
6.Changes to this policy
This policy applies from 24 October 2026. We update it whenever what we store in the browser changes.