Synthetic Monitor

Create and configure a Synthetic Monitor to perform periodic health checks against HTTP endpoints and receive alerts when services are slow or unavailable.

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Overview

A Synthetic Monitor performs periodic health checks against HTTP endpoints to monitor availability and response times. Use synthetic monitors to test API endpoints, URLs, or any HTTP-accessible service and receive alerts when endpoints are slow or unavailable.

Create a Synthetic Monitor

To create a synthetic monitor:

  1. Click Monitors and select the List tab.
Monitors list page showing the List tab Monitors list page showing the List tab
  1. Click + New Monitor and select Synthetic Monitor.
New Monitor menu with Synthetic Monitor option New Monitor menu with Synthetic Monitor option

Configure Synthetic Monitor

The Synthetic Monitor performs periodic health checks against HTTP endpoints to monitor availability and response times. The monitor can test API endpoints, URLs, or any HTTP-accessible service.

Synthetic Monitor configuration form Synthetic Monitor configuration form

Monitor Scope

The Monitor Scope section defines what you want to monitor and how to test it.

API

Configure API endpoint monitoring with the following options:

  • URL: Enter the endpoint URL to monitor (required).
  • Method: Select the HTTP method for the request.
  • Headers: Add custom HTTP headers for the request.
  • Expected Status Codes: Specify which HTTP status codes indicate success.

URL

Configure the URL endpoint that the synthetic monitor tests. The monitor makes HTTP requests to this URL at the specified rerun interval.

Script

Advanced users can configure custom synthetic monitoring scripts for more complex scenarios.

Rerun Interval

The Rerun Interval determines how often the synthetic monitor runs the check. Choose an interval based on how critical the endpoint is and how quickly you need to be alerted about issues.

Alert Conditions

The Alert Conditions section evaluates the API response time in milliseconds. Configure the following options:

  • Use historical average for threshold calculation: When enabled, alerts and warnings trigger based on percentage deviation from the rolling average of recent test results. When disabled, alerts and warnings trigger based on absolute response time thresholds in milliseconds.
  • Alert threshold (ms): The response time threshold that triggers an alert condition.
  • Warning threshold (ms): The response time threshold that triggers a warning (optional).

Notification

For notification configuration options, see Monitor Notifications.

To use source fields in the notification, you must specify them in the Group By field in the Monitor Scope section and in the Group notifications by field in the Notifications section.

See Also