Browser
TrueSiftCheck creates the short-lived verification token and returns it to your form.
Official React & Svelte SDKs
Protection that fits your application.
With @truesift/next für React / Next.js und @truesift/svelte für Svelte 5 / SvelteKit integrieren Sie eine klare Verifikationsoberfläche in den Browser und behalten die verbindliche Entscheidung dort, wo sie hingehört: auf Ihrem Server.
Local routes
Challenge und Verify bleiben in Ihrer Anwendung. Der Secret Key bleibt serverseitig.
Business Route
Only verificationToken comes from the client. Action, Path and Origin are defined by your server.
Real SDK demo
The real component. Not a mock-up.
This preview renders TrueSiftCheck directly from @truesift/next/client. The scenarios run through the local demo routes from the SDK example and show the actual widget lifecycle.
State simulatorAllow
Successful human verification.
Scenario
Theme
Language
Checkbox · Compact
Recommended visual direction for forms.
Checkbox · Normal
Default npm-like fallback behaviour.
Banner · Flexible
Legacy / marketing mode, still available when needed.
Checkbox · Compact · Light card
Checks how the active theme behaves inside a light card.
Latest verification callbacks
No verification callbacks yet.
Security principle
The interface is not proof.
Decisions such as allow, review or block are never accepted from browser data. The protected business route verifies the token server-side against the expected Action, Path and Origin — only then does it execute the action.