Guides
Practical guides for stopping disposable-email signups in your stack - Next.js, Clerk, Supabase Auth, Auth0, and more.
How to block disposable emails in Next.js
Reject throwaway signups with one server-side API call.
Block fake signups in Clerk and Supabase Auth
Layer a freshness check on top of their built-in static lists.
Block disposable signups in Auth0 with a Pre User Registration Action
Deny the registration before the account is ever created.