Next.js
Block disposable, undeliverable and duplicate signup emails in a Next.js App Router Server Action with Signitize, failing open when the check is unavailable.
Express
Express middleware that blocks disposable, undeliverable and duplicate signup emails with Signitize and lets the signup continue when the check is unavailable.
Laravel
A Laravel validation rule that blocks disposable and undeliverable signup emails with Signitize, catches alias duplicates and never blocks a signup when the check is down.
Django
Validate Django signup forms against disposable, undeliverable and alias-duplicate emails with Signitize, failing open when the check is unavailable.
Supabase
Use a Supabase Before User Created auth hook and an Edge Function to block disposable, undeliverable and alias-duplicate signups with Signitize.
Firebase
A Firebase beforeUserCreated blocking function that rejects disposable, undeliverable and alias-duplicate signup emails with Signitize and fails open.
Clerk
Check new Clerk users with Signitize from a user.created webhook in Next.js, flag disposable and alias-duplicate signups and hold back free perks until they pass.