Cookie declaration
The table describes cookies and browser storage (localStorage) by category. Consent choices and the ebook theme are localStorage entries, not cookies. Consent choices expire after 365 days; the theme is remembered only with preferences consent. You can change your choices using the icon in the bottom-left corner.
NecessaryAlways on
Required for the site to work correctly. They cannot be turned off.
| Cookie / entry | Provider | Purpose | Retention |
|---|---|---|---|
| __Host-seo-auth* | przemekdrozniak.pl / Supabase | Maintains owner dashboard authentication; HttpOnly, Secure, SameSite=Strict | Until sign-out or session expiry; the cookie may persist after closing the browser |
| cookie_consent_v2 | przemekdrozniak.pl | Stores your consent choices in browser localStorage | 365 days |
Preferences
Remember your settings and preferences (e.g. site theme).
| Cookie / entry | Provider | Purpose | Retention |
|---|---|---|---|
| lm-theme | przemekdrozniak.pl | Remembers the ebook theme in localStorage after preferences consent | 365 days |
Statistics
Help us measure traffic and understand how to improve the site.
| Cookie / entry | Provider | Purpose | Retention |
|---|---|---|---|
| _ga | Google Analytics | Distinguishes site users | 2 years |
| _ga_* | Google Analytics | Keeps analytics session state | 2 years |
| _clck | Microsoft Clarity | Stores the Clarity user ID for session analysis | 1 year |
| _clsk | Microsoft Clarity | Joins multiple pageviews into a single Clarity session recording | 1 day |
| MR | Microsoft Clarity | Indicates whether to refresh MUID (Microsoft identifier) | 7 days |
| MUID | Microsoft Clarity | Identifies unique browsers visiting Microsoft sites | 1 year |
| CLID | Microsoft Clarity | Identifies the user's first Clarity session | 1 year |
| ANONCHK | Microsoft Clarity | Indicates MUID transfer to ANID; Clarity does not use ANID and sets this flag to 0 | session |
| SM | Microsoft Clarity | Synchronises MUID across Microsoft domains | session |
Marketing
Allow personalised ads to be shown on other platforms.
| Cookie / entry | Provider | Purpose | Retention |
|---|---|---|---|
| _fbp | Meta Pixel | Identifies the browser to personalise Meta ads | 3 months |
| _fbc | Meta Pixel | Stores information about a click on a Meta ad | 3 months |
Updated: 11 October 2026. The table covers local entries and possible cookies from configured providers; not all are created on every visit. Optional measurement starts after consent. Provider durations are indicative and depend on settings and the browser. Cal.com may use its own storage in the embedded calendar — see its privacy policy. Privacy policy