Human verification

Portcullis

Portcullis is Zipper’s own human check. Visitors see a short widget. Zipper looks at the browser, does a small puzzle, and hands your page a one-time token. You send that token to Siteverify. It is not a third-party CAPTCHA network.

• ▸ Widget on your page
• ▸ Browser signals plus a small puzzle
• ▸ One-time tokens
• ▸ Siteverify API

Auto-provisioned on every new zone. Read the Portcullis docs, including use cases and API examples. Manage it from the dashboard after you create an account.