Popular Castle use cases

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Send log-in data
Automatically send successful and failed login attempts to Castle,
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Track users
Automatically send users and behavioral data to Castle.
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Easy device fingerprinting
Send headers to build a rich device fingerprint in Castle.
See Castle Integration

Use the JavaScript SDK with other popular destinations

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Use the to send real-time data to Google Analytics
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Easily send event stream and batch data to Amazon S3 from your JavaScript website
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Automatically send data from your JavaScript website to any destination that supports Webhooks
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Send product data from your JavaScript website to Amplitude in a few clicks.
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About Castle
Castle is an account security and fraud prevention platform, designed for businesses and developers. Its real-time threat detection and scoring capabilities allow you to block spam registrations and any account hacking attempts. With Castle, you can easily eliminate fake accounts and bots, and avoid credential stuffing to avoid any possibility of an account takeover attempt. Castle also allows you to automate your security flows, including account recovery process, authentication mechanisms, end-user alerts, and much more.