My dependency map

Add the email addresses, phone numbers, devices and accounts you rely on, then say how they connect. The map shows what depends on what, and where one thing is holding up too much.

Stays in this browser. Nothing is uploaded or shared.
No real numbers needed. Nicknames like “Old mobile number” work.
Export a copy as a file whenever you like.

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What the check looks for

The dependency risk check reads the structure of the map you build. It isn’t a security audit and it can’t see your real accounts, so it only knows what you’ve added.

One email or phone number that too many accounts depend on: Changing or losing it would affect all of them at once.
Single points of failure: Something that is the only way back into several accounts.
Recovery loops: Accounts that can only be recovered through each other, or a recovery email that forwards back into itself.
Important accounts without a backup way in: Only one recovery or two-factor option, or none shown.
A password manager with no independent recovery: Including one that’s only recoverable through an account it unlocks.
One card paying for many services: If it expires or is replaced, payments can fail together.