A comprehensive guide to creating and managing Web Sensors in PRTG Network Monitor

📌 What is a Web Sensor?

Web Sensors are used to monitor HTTP/HTTPS services, web pages, or API endpoints. They check the availability, response time, and content of web resources.

✅ Key Features

  • HTTP status code checks (200, 404, 500, etc.)
  • Custom response time thresholds
  • Content-based monitoring (e.g., checking for specific text in HTML)
  • Support for SSL/TLS encryption

🛠️ How to Configure a Web Sensor

  1. Create a new sensor

    • Navigate to Devices > [Your Device] > Sensors
    • Click + Create Sensor and select Web as the sensor type

  2. Set the URL

    • Enter the target URL (e.g., https://example.com/status.html)
    • Replace spaces with underscores (e.g., My_Page → My_Page)

  3. Define thresholds

    • Set Response Time and HTTP Status alerts
    • Use Content Match to verify specific keywords in the response

  4. Test the sensor

    • Click Test to validate the configuration
    • Fix any errors in the URL or response criteria

🌐 Use Cases

  • Monitoring web server uptime
  • Checking application health checks
  • Tracking API endpoint responsiveness

For advanced configurations, see our PRTG Sensor Types Guide.

Web Sensor Overview
Configuring Web Sensors
Web Sensor Testing