Small tools.
Clearer decisions.
Explore an address, test a signup rule, or put a number on free-credit exposure. Try public tools, then integrate when you’re ready.
Disposable Email Checker
Check an exact domain before asking someone for another address. Get a live classification, with its limits explained.
Explore LIST HEALTH05CSV Email List Profiler
Extract domains locally, remove duplicates, and inspect a small list without uploading anyone’s full email address.
Explore INTEGRATE06Signup Guard Generator
Generate a server-side JavaScript integration with explicit decisions for disposable and unresolved results.
Explore IDENTITY01Email Alias Explorer
See which addresses group together under Disban's signup-limit policy. Keep delivery and identity separate.
Explore DECISIONS02Signup Policy Lab
Explore a decision before turning it into a signup rule. Personal inbox, relay, disposable, or unresolved?
Explore INCENTIVES03Free Credit Exposure Calculator
See the combined effect of free accounts and referral rewards. Change the inputs, inspect the assumptions.
ExploreFull email addresses and CSV files stay in your browser. No email is sent. Live tools send domains only, with public usage limits. Local tools do not send their inputs. None verifies mailbox existence.