--- title: "Cookie Policy - 0layers" description: "Learn about the cookies 0layers uses — essential, analytics, performance, and marketing — and how to manage your cookie preferences." canonical: "https://0layers.com/legal/cookies" source: "https://0layers.com/legal/cookies" --- # Cookie Policy - 0layers > Learn about the cookies 0layers uses — essential, analytics, performance, and marketing — and how to manage your cookie preferences. ## Cookie Policy Last updated: July 17, 2026 ### 1\. What Are Cookies? Cookies are small text files that are placed on your device when you visit a website. They are widely used to make websites work more efficiently and provide information to website owners. ### 2\. How We Use Cookies We use cookies to: - Keep you signed in to your account - Remember your preferences and settings - Understand how you use our service - Improve our service performance ### 3\. Types of Cookies We Use #### Essential CookiesRequired Required for authentication and core website functionality. **Services:** - Clerk (Authentication) - Session Management **Specific Cookies:** - `__session` \- Authentication session - `__auth_*` \- Authentication tokens - `0l_consent` \- Stores your cookie consent preferences (1 year) - `0l_region` \- Detected visitor region for consent (session) **Duration:** Session cookies (deleted when browser closes) and persistent cookies (up to 1 year) #### Analytics Cookies Help us understand how visitors interact with our website to improve user experience. **Services:** - Vercel Analytics - PostHog **Third-Party Services:** - **Vercel Analytics** - Page views and user behavior ([Privacy Policy](https://vercel.com/docs/analytics/privacy-policy)) - **PostHog** - Product analytics and feature flags ([Privacy Policy](https://posthog.com/privacy)) #### Performance Cookies Used to measure and improve website performance and loading speed. **Services:** - Vercel Speed Insights #### Marketing Cookies Help us deliver relevant advertising and measure the effectiveness of our marketing campaigns. **Services:** - Google Analytics and Google Ads (campaign measurement and conversion attribution) **Purpose:** Measure consent-permitted campaign visits and conversion events for Google advertising. **Specific Cookies:** - `__Host-0l_attribution` \- Signed, first-party acquisition attribution used to connect a consent-permitted campaign visit to the first useful product experience (30 days). It stores a one-way fingerprint instead of the raw Google click identifier and is removed after account claim or marketing-consent withdrawal. **Third-Party Services:** - **Google Analytics and Google Ads** - Campaign measurement and conversion attribution ([Privacy Policy](https://policies.google.com/privacy)) ### 4\. Browser Storage In addition to cookies, we may use browser storage technologies: - **localStorage:** May be used to store offline queue data for better reliability - **sessionStorage:** May be used to temporarily store form data and a pseudonymous delivery marker that prevents a signup or lead event from being queued twice during the same session Browser delivery markers remain on your device and are not account identifiers. Consent-permitted marketing events are transmitted to the configured analytics and advertising services; denying marketing or enabling Global Privacy Control prevents those events from being queued. ### 5\. Managing Cookies We use a geo-targeted consent mechanism to respect your privacy preferences: - **European Economic Area & United Kingdom:** A cookie consent banner appears on your first visit. Analytics and marketing cookies only load after you explicitly accept them. - **United States:**Analytics and marketing cookies are enabled by default, consistent with US industry standards. California residents can opt out of data sharing via our "Do Not Sell My Info" link in the footer. - **Other Regions:** Analytics and marketing cookies are enabled by default. - **Global Privacy Control:** A recognized GPC signal prevents first-party acquisition attribution capture and is honored as a marketing opt-out. You can manage your preferences in the following ways: - **Revoke Consent:** Reject marketing in the consent controls or use the persistent privacy control in the lower corner. Rejecting marketing clears pending acquisition attribution and deletes linked attribution records for an authenticated account. - **Browser Settings:** Most browsers allow you to refuse or delete cookies through settings. - **Clear Data:** You can clear all cookies and site data through your browser. **Note:** Disabling essential cookies may prevent you from using certain features of the Service, such as signing in to your account. ### 6\. Third-Party Cookies Some cookies are set by third-party services that provide essential functionality to our website, including: - **Authentication providers** for secure login and user management - **Analytics services** to understand how users interact with our site - **Advertising platforms** to measure and optimize our marketing campaigns - **Payment processors** to handle secure transactions We do not control these third-party cookies. Each service provider has their own privacy policy governing their use of cookies. ### 7\. Updates to This Policy We may update this Cookie Policy to reflect changes in our practices or legal requirements. We will notify you of significant changes via email or prominent notice on our website. ### 8\. Contact Us If you have questions about our use of cookies, please contact us: Email: [privacy@0layers.com](mailto:privacy@0layers.com)