voluptasmollitia/docs-exp/auth.applicationverifier.md

Monorepo for the Firebase JavaScript SDK

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[Home](./index.md) &gt; [@firebase/auth](./auth.md) &gt; [ApplicationVerifier](./auth.applicationverifier.md)

## ApplicationVerifier interface

A verifier for domain verification and abuse prevention.

<b>Signature:</b>

```typescript
export interface ApplicationVerifier 
```

## Remarks

Currently, the only implementation is [RecaptchaVerifier](./auth.recaptchaverifier.md)<!-- -->.

## Properties

|  Property | Type | Description |
|  --- | --- | --- |
|  [type](./auth.applicationverifier.type.md) | string | Identifies the type of application verifier (e.g. "recaptcha"). |

## Methods

|  Method | Description |
|  --- | --- |
|  [verify()](./auth.applicationverifier.verify.md) | Executes the verification process. |