Cookie Policy
Last updated: March 2026
1. What Are Cookies?
Cookies are small text files placed on your device when you visit a website. They are widely used to make websites work more efficiently and to provide information to site owners. Some cookies are essential for the site to function, while others help us improve your experience.
2. Cookies We Use
| Category | Purpose | Duration | Required? |
|---|---|---|---|
| Essential | Authentication, session management, CSRF protection, and core platform functionality. These cookies are set by Supabase for secure login sessions. | Session / 1 year | Yes |
| Analytics | Help us understand how visitors interact with ZSign so we can improve the product. Powered by PostHog with privacy-friendly defaults (no cross-site tracking). | 1 year | No |
| Preferences | Remember your settings such as theme (light/dark mode), language, and UI preferences. | 1 year | No |
We do not use advertising cookies or third-party tracking cookies. ZSign does not serve ads and does not share cookie data with advertising networks.
3. Specific Cookies
| Cookie Name | Provider | Type | Purpose |
|---|---|---|---|
| sb-*-auth-token | Supabase | Essential | Authentication session |
| ph_* | PostHog | Analytics | Anonymous usage analytics and feature flags |
| theme | ZSign | Preference | Stores light/dark mode preference |
4. Managing Cookies
You can control cookies in several ways:
- Browser Settings: Most browsers allow you to block or delete cookies through their settings. Note that blocking essential cookies may prevent ZSign from functioning properly.
- Analytics Opt-Out: You can opt out of PostHog analytics tracking through your ZSign account settings, or by using a browser-based opt-out mechanism.
For more information on managing cookies in specific browsers:
5. Updates to This Policy
We may update this Cookie Policy from time to time to reflect changes in our practices or for legal, operational, or regulatory reasons. The “Last Updated” date at the top indicates the most recent revision.
6. Contact Us
If you have questions about our use of cookies, please contact us:
ZSign, Inc.
Email: privacy@zsign.com
For more details about our overall data practices, see our Privacy Policy.