Cookie Policy
The short version: we use the cookies the app needs to work.
Last updated: 15 July 2026
CertPost uses cookies and similar local storage only to run the service. We do not use advertising cookies, and we do not sell your browsing data.
What we use
- Authentication cookies. When you sign in, we store a secure session so you stay logged in and so we can protect your account. Without these, the app cannot keep you signed in.
- Preference storage.We remember choices such as your light or dark theme, and we briefly use your browser’s local storage to carry a domain from the homepage check into signup. These stay on your device.
- Security. Cookies that help us detect and prevent fraudulent or abusive use of the service.
- First-party analytics. A single anonymous cookie (
cp_sid) with a random identifier, so we can count visits and understand which pages lead people to sign up. It carries no personal information, we never store your IP address (only a one-way hash), the data never leaves our own database, and no third party receives it. Blocking or clearing this cookie does not affect how the site works.
What we do not use
We do not run third-party advertising, third-party analytics, or cross-site tracking cookies, and we do not sell or share browsing data with anyone.
Managing cookies
You can clear or block cookies in your browser settings. Blocking the authentication cookies will stop you from signing in, because the app relies on them to keep your session. Preference and security cookies can be cleared at any time without losing your account.
Questions
Contact us at privacy@certpost.ai if you have any questions about how we use cookies.