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CT Log Status

This page provides real-time information about the status and performance of major Certificate Transparency logs monitored by our platform.

Our platform continuously monitors the health and availability of CT logs. Each log is checked for:

  • Availability: Whether the log is responding to requests
  • Performance: Response times and throughput
  • Consistency: Whether the log is operating correctly
  • Updates: How recently the log was updated
  • Google Argon: High-volume log for general use
  • Google Xenon: High-volume log for general use
  • Google Nimbus: High-volume log for general use
  • Cloudflare Nimbus: High-volume log operated by Cloudflare
  • Cloudflare Xenon: High-volume log operated by Cloudflare
  • DigiCert Log Server: High-volume log operated by DigiCert
  • DigiCert Log Server 2: High-volume log operated by DigiCert
  • Let’s Encrypt Oak: High-volume log operated by Let’s Encrypt
  • Let’s Encrypt Oak 2023: High-volume log operated by Let’s Encrypt

Our monitoring system tracks several key metrics for each log:

  • Uptime: Percentage of time the log is available
  • Response Time: Average response time for queries
  • Throughput: Number of certificates processed per hour
  • Last Update: Timestamp of the most recent certificate entry
  • 🟢 Operational: Log is functioning normally
  • 🟡 Degraded: Log is experiencing issues but still operational
  • 🔴 Down: Log is not responding or experiencing critical issues
  • ⚪ Unknown: Status cannot be determined

We maintain historical data about log performance and availability. This data can be used to:

  • Identify patterns in log performance
  • Plan for maintenance windows
  • Understand the impact of log outages
  • Generate compliance reports

Log status information is available through our API for integration with your monitoring systems. See the API Reference for details on accessing this data programmatically.

If you’re experiencing issues with CT monitoring:

  1. Check the log status on this page
  2. Verify your domain configuration
  3. Review your alert settings
  4. Contact support if issues persist