Cookies Policy

    Cookies, local storage, and similar technologies

    This site currently relies on essential authentication cookies plus a small amount of browser storage for preferences and UX continuity. No custom advertising pixels or marketing-cookie libraries are wired into the application code at this time.

    Read the privacy policyAsk a cookies question
    What is active today
    Last updated: June 1, 2026
    • Essential Clerk cookies required for sign-in, session continuity, and account security.
    • Browser localStorage used for theme preference, dismissed site-banner state, and signed-in visited-post cache.
    • Vercel Analytics and Speed Insights for operational measurement and performance monitoring.
    • Privacy-enhanced YouTube embeds that use the youtube-nocookie domain until playback is requested.
    Consent position
    How the site treats optional tracking technologies.

    The current implementation only depends on essential account cookies and operational browser storage. Because of that, the site does not yet expose a granular cookie-preference center.

    If future releases introduce non-essential cookies or similar technologies that require opt-in consent under applicable law, the site will add a consent flow before those features are enabled.

    Strictly necessary cookies

    Clerk authentication is enabled across the site. That means essential cookies may be set so users can sign in, stay signed in, and complete account-related actions safely. These cookies support session continuity, request integrity, and fraud or abuse prevention. Disabling them may prevent account features from functioning.

    Local storage and similar browser storage

    The application also stores a small number of non-cookie values directly in the browser to preserve user experience between visits.

    • Theme preference so the site can remember whether you last used light, dark, or system mode.
    • Dismissed banner flags so operational notices do not reappear after you close them.
    • Visited-post cache scoped to the signed-in user ID to render read-state faster in the blog UI.

    Analytics and performance monitoring

    Vercel Analytics and Vercel Speed Insights are enabled site-wide to help understand traffic patterns, diagnose slow pages, and spot regressions. These services are used for product and reliability measurement rather than advertising. No custom marketing pixels, retargeting tags, or ad-tech SDKs are currently integrated into the app code.

    Embedded third-party content

    Some pages may load YouTube content through the privacy-enhanced youtube-nocookie domain. Once you choose to play or interact with embedded media, the third-party provider may still process technical data such as IP address, browser information, or device details under its own privacy terms.

    How to manage these technologies

    • Use your browser settings to block, clear, or limit cookies for this site.
    • Clear local site data from your browser if you want to remove stored preferences and read-state.
    • Sign out of your Clerk session from the site navigation to end the active account session.
    • Avoid loading embedded third-party media if you do not want those providers to process your device or network data.

    You can also contact contact@mateusz-dev.pl if you need help understanding how a specific account or browser setting affects your use of the site.

    Related policies

    For a broader explanation of what personal data is processed and why, see the Privacy Policy. For provider-specific details, you should also review the policies of Clerk, Vercel, YouTube, GitHub, or Google where those services are relevant to your chosen features.

    Clerk privacy information
    Vercel privacy information