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Overview Guides Reference Samples Resources
Google Cloud Documentation
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  • Product overview
  • Compare Fraud Defense tiers
  • Test reCAPTCHA in a demo website
  • Get started
  • Implementation of reCAPTCHA
  • Prepare your environment
  • Access control with IAM
  • reCAPTCHA keys overview
  • Choose the reCAPTCHA key type
  • Understand how reCAPTCHA uses Private Access Tokens
  • Hand gesture verification
  • Set up
  • Set up reCAPTCHA on websites
    • Setup overview for websites
    • Create keys for websites
    • Action names
    • Install score-based keys on web pages
    • Install checkbox keys on web pages
    • Install policy-based challenge keys on web pages
    • Create assessments for websites
    • Interpret assessments for websites
    • Configure an IP address allowlist
    • Challenge types
    • Set up Policy Engine with a Universal key
    • Install Universal keys on web pages
    • Configure challenge policies
  • Set up reCAPTCHA on mobile applications
    • Setup overview for mobile applications
    • Create keys for mobile applications
    • Action names
    • Deprecation and shutdown policy for mobile SDKs
    • iOS
      • Review Apple privacy details
      • Integrate reCAPTCHA with iOS apps
    • Android
      • Prepare for Google Play data disclosure requirements
      • Integrate reCAPTCHA with Android apps
    • Create assessments for mobile applications
    • Interpret assessments for mobile applications
  • Integration with Google Cloud Armor
    • Setup overview for Google Cloud Armor
    • Features for integration with Google Cloud Armor
    • reCAPTCHA token attributes for Google Cloud Armor
    • Integrate with Google Cloud Armor for websites
    • Integrate with Google Cloud Armor for mobile applications
    • Examples of integration with Google Cloud Armor
  • Set up reCAPTCHA express for API endpoints
  • Refine site-specific model
  • Annotate assessments
  • Protect
  • User accounts
    • User accounts protection features
    • Configure Multi-factor authentication
    • Detect password leaks and breached credentials
    • Detect fraudulent activities on websites
    • Identify user accounts that show related behaviors on websites
    • Detect fraudulent activities on mobile applications
    • Detect and prevent account takeovers
  • Detect and prevent SMS fraud
  • Identify and investigate attacks
  • Automated threats
    • Best practices for protection from automated threats
  • Payment transactions
    • Set up Transaction defense
    • Additional signals
    • Annotate assesments with transaction data
  • Manage
  • Edit or delete reCAPTCHA keys
  • Restrict operations on reCAPTCHA keys
  • Migrate
  • Migration overview
  • Migrate from reCAPTCHA Classic
  • Use Fraud Defense features after migration
  • Reconcile legacy terminology
  • Migrate from v1beta1 to v1
  • Monitor
  • Audit logging
  • Work with platform logs
  • Usage reporting
  • Monitor reCAPTCHA keys
  • Create dashboards with Looker Studio
  • Monitor agent traffic
  • Troubleshoot
  • Troubleshoot reCAPTCHA integration issues
  • Samples
  • All reCAPTCHA code samples
  • All code samples for all products
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  • Costs and usage management
  • Infrastructure as code
  • SDK, languages, frameworks, and tools
reCAPTCHA is a part of Google Cloud Fraud Defense. For more information, see Google Cloud Fraud Defense.
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