Documentation

Learn how to implement, deploy, and use Fingerprint.

Quick Start Guide →

<script>
  // Initialize the agent at application startup.
  // Some ad blockers or browsers will block Fingerprint CDN URL.
  // To fix this, please use one of our proxy integrations.
  const fpPromise = import('https://fpjscdn.net/v3/<<browserToken>>')
    .then(FingerprintJS => FingerprintJS.load());

  // Get the visitor identifier when you need it.
  fpPromise
    .then(fp => fp.get())
    .then(result => console.log(result.visitorId));
</script>

Get started fast

Add the JavaScript snippet to all pages where you want to identify visitors.

Need a little more guidance?

Video Introduction