Mastering the Art of Synthetics Monitoring in New Relic: A Comprehensive Guide


Contents hide

In today’s digital landscape, where downtime and performance issues can result in significant losses for businesses, the need for efficient and effective monitoring tools has become paramount. One such tool that has gained immense popularity is Synthetics Monitoring. This comprehensive guide will delve into the intricacies of implementing and utilizing Synthetics Monitoring in New Relic, shedding light on the key components, setting up the monitoring, interpreting results, advanced techniques, maintenance, and troubleshooting.

Synthetics Monitoring in New Relic

The Growing Importance of Synthetics Monitoring

In an era where user experience reigns supreme, ensuring the seamless functioning of web applications and APIs is crucial. Synthetics Monitoring allows organizations to simulate user interactions and proactively identify performance bottlenecks, thus preemptively addressing potential issues.

Synthetics Monitoring in New Relic

Benefits of Implementing Synthetics Monitoring in New Relic

Improved User Experience:

By monitoring web applications and APIs, businesses can ensure optimal performance, resulting in enhanced user satisfaction.

Reduced Downtime:

Proactive identification and resolution of performance issues minimize the risk of downtime, thus saving valuable time and money.

Enhanced Performance Optimization:

Synthetics Monitoring provides insights into trends, patterns, and performance bottlenecks, enabling businesses to optimize their applications and APIs continuously.

Rapid Troubleshooting:

With real-time monitoring and detailed analytics, organizations can quickly identify and resolve issues, minimizing their impact on users.

Understanding Synthetics Monitoring

At its core, Synthetics Monitoring allows businesses to simulate user interactions with web applications and APIs, providing valuable insights into performance. Let’s explore the key components of Synthetics Monitoring and how it works in New Relic.

What is Synthetics Monitoring?

Synthetics Monitoring is a technique used to simulate user interactions with web applications and APIs, gauging performance and availability. By mimicking user behavior, businesses can proactively identify and rectify performance issues.

Synthetics Monitoring in New Relic

Key Components of Synthetics Monitoring

Browser Monitoring:

Simulating user interactions in a web browser environment to monitor application performance.
Tracking metrics such as page load times, DNS resolution, network latency, and DOM processing.

API Monitoring:

Evaluating the performance of APIs by sending requests and analyzing the response times.
Ensuring smooth functioning of APIs by monitoring key performance metrics and identifying issues.

Scripted Tests:

Creating customized test scripts to simulate complex user interactions with applications and APIs.
Allows for precise monitoring and identification of performance bottlenecks.

How Synthetics Monitoring Works in New Relic

Synthetics Monitoring in New Relic operates by utilizing a global network of monitoring locations to simulate user interactions. By executing test scripts, businesses can gain real-time insights into performance metrics, allowing for proactive optimization and troubleshooting.

Synthetics Monitoring in New Relic

Setting Up Synthetics Monitoring in New Relic

Implementing Synthetics Monitoring in New Relic requires careful setup and configuration. Let’s delve into the prerequisites, creating a Synthetics monitor, selecting monitoring locations, configuring alert policies, and defining test scripts.

Prerequisites for Implementing Synthetics Monitoring

Before setting up Synthetics Monitoring in New Relic, ensure the following:

  • Active New Relic account with Synthetics Monitoring enabled.
  • Access to the web applications or APIs that require monitoring.
  • Creating a Synthetics Monitor in New Relic

To create a Synthetics monitor in New Relic, follow these steps:

  • Navigate to the Synthetics section in the New Relic dashboard.
  • Click on “Create a Monitor” and select the desired monitor type (Browser or API).
  • Provide essential details like monitor name, URL, or API endpoint.
  • Configure additional settings, such as frequency and alert conditions.
  • Save the monitor, and it will start running immediately.

Selecting Monitoring Locations

New Relic offers a network of monitoring locations globally. When setting up Synthetics Monitoring, consider selecting locations that are geographically relevant to your user base for accurate performance insights.

Configuring Alert Policies

Alert policies ensure timely notifications when performance issues arise. Configuring appropriate alert policies enables businesses to proactively address performance anomalies and minimize their impact on users.

Defining Test Scripts

Crafting effective test scripts is crucial for accurate monitoring and performance analysis.

Here are some best practices:-

Capturing Realistic User Interactions:

Mimic user behavior, such as clicking, scrolling, or form submissions, to simulate real-world scenarios.

Dynamic Assertions:

Include assertions that validate specific conditions, such as expected response codes or content, ensuring accurate monitoring.

Handling Authentication and Cookies:

Account for authentication mechanisms and cookies to simulate authenticated user interactions accurately.

Interpreting Synthetics Monitoring Results

Once Synthetics monitors are up and running, it is essential to understand the provided results and leverage them for continuous improvement.

Let’s explore the various aspects of interpreting Synthetics Monitoring results.

Understanding Synthetics Monitor Dashboards

New Relic offers intuitive dashboards that provide detailed insights into performance metrics and trends. These dashboards enable businesses to gain a comprehensive understanding of the monitored application or API.

Response Times and Performance Metrics

By monitoring response times and other performance metrics, businesses can identify areas of improvement and optimize application or API performance. Metrics may include page load time, network latency, DNS resolution time, and API response time.

Transaction Traces and Errors

Transaction traces provide a detailed breakdown of request-response cycles, allowing businesses to pinpoint performance bottlenecks. Monitoring errors helps in identifying issues and taking remedial measures promptly.

Analyzing Trends and Patterns

Analyzing trends and patterns within the monitoring results helps businesses identify recurring issues, enabling them to proactively optimize performance.

Identifying Performance Bottlenecks

Synthetics Monitoring allows proactive identification of performance bottlenecks by pinpointing areas of latency, high response times, or errors. This information enables businesses to optimize their applications and APIs.

Detecting Service Dependency Issues

By monitoring the response time and availability of each service dependency, Synthetics Monitoring helps detect and resolve issues related to external dependencies, ensuring seamless application performance.

Leveraging Insights for Continuous Improvement

The insights generated through Synthetics Monitoring serve as a valuable resource for continuous improvement. By analyzing the data and identifying areas of enhancement, businesses can optimize their applications and APIs, ensuring superior performance.

Proactively Optimizing Performance

The real-time monitoring capabilities of Synthetics Monitoring enable businesses to proactively optimize performance based on identified trends and patterns.

Resolving Critical Performance Anomalies

By detecting critical performance anomalies in real-time, Synthetics Monitoring allows businesses to swiftly address issues and mitigate any adverse impact on users.

Advanced Techniques for Synthetics Monitoring

While the basic setup of Synthetics Monitoring covers a wide range of scenarios, understanding advanced techniques can further enhance the effectiveness of monitoring. Let’s explore some advanced techniques for Synthetics Monitoring in New Relic.

Implementing Multi-step Scripted Tests

Multi-step scripted tests allow businesses to simulate complex user flows, ensuring that applications and APIs function seamlessly in intricate scenarios.

Navigation and Interactions

Including navigation and interactions in test scripts provides a realistic simulation of user experience, allowing for accurate monitoring and identification of performance issues.

Data Validation and Extraction

Performing data validation and extraction during test execution helps businesses verify the correctness of application responses and extract valuable information for analysis.

Testing API Endpoints with Synthetics

Synthetics Monitoring extends beyond web application monitoring by offering API monitoring capabilities. By testing API endpoints, businesses can ensure the smooth functioning of critical services.

Response Validation and Error Handling

Validating API or application responses against expected values or formats helps identify discrepancies and errors promptly. Proper error handling ensures the accuracy of monitoring results.

Authentication and Token Management

To simulate user interactions accurately, Synthetics Monitoring needs to handle authentication mechanisms and token management. Implementing authentication and token management techniques ensures monitoring accuracy in authenticated scenarios.

Using Custom Scripts and Libraries in Synthetics

The flexibility of Synthetics Monitoring allows businesses to include custom scripts and libraries. Leveraging custom scripts enables unique monitoring scenarios, tailored specifically to business requirements.

Extending Functionality with JavaScript

The integration of JavaScript within Synthetics Monitoring opens up avenues for enhanced monitoring capabilities, enabling businesses to cater to complex testing requirements.

Leveraging Third-Party Libraries

Synthetics Monitoring provides the flexibility to utilize third-party libraries. Incorporating these libraries enhances monitoring capabilities and provides additional functionality.

Maintaining and Troubleshooting Synthetics Monitoring

Ensuring the reliability and effectiveness of Synthetics Monitoring requires proper maintenance and troubleshooting. Let’s explore some best practices for maintaining and troubleshooting Synthetics Monitoring in New Relic.

Managing and Organizing Synthetics Monitors

As the number of Synthetics monitors grows, it becomes essential to manage and organize them efficiently. Proper organization enables businesses to quickly locate and manage the monitors effectively.

Tagging and Grouping Strategies

Implementing effective tagging and grouping strategies allows businesses to categorize monitors based on various criteria, such as application, environment, or criticality. This aids in streamlined maintenance and troubleshooting.

Organizational Best Practices

Adhering to organizational best practices helps maintain consistency and efficiency in Synthetics Monitoring. Documenting processes, sharing knowledge, and following established guidelines contribute to optimal monitoring outcomes.

Synthetics Monitoring in New Relic

Troubleshooting Common Synthetics Monitor Failures

Handling Network Congestion:

Network congestion can impact monitoring accuracy. Monitoring during different times or using multiple monitoring locations can help identify if network congestion is affecting results.

Dealing with Third-Party Dependencies:

If third-party services are experiencing downtime or performance issues, the monitoring results may be affected. Identifying such dependencies and monitoring them separately can help isolate issues.

Debugging Script Errors:

Test script errors can lead to false positives or inaccurate monitoring results. Debugging scripts thoroughly and utilizing logging capabilities can assist in resolving script-related issues.


Synthetics Monitoring is a powerful tool that allows businesses to simulate user interactions and proactively identify performance issues. By implementing and utilizing Synthetics Monitoring in New Relic, organizations can significantly enhance user experience, reduce downtime, improve performance optimization, and troubleshoot issues promptly.

Key Takeaways for Successful Implementation

  • Properly configure and set up Synthetics Monitoring in New Relic to ensure accurate monitoring.
  • Leverage test scripts to capture realistic user interactions and handle authentication mechanisms effectively.
  • Regularly interpret and analyze Synthetics Monitoring results to identify trends, bottlenecks, and areas of improvement.
  • Utilize advanced techniques like multi-step scripted tests and data validation for thorough monitoring.Maintain and
  • troubleshoot Synthetics Monitoring to ensure reliability and accuracy.

FAQs (Frequently Asked Questions)


1. What is the cost associated with Synthetics Monitoring in New Relic?

The cost of Synthetics Monitoring in New Relic can vary depending on the specific plan and features you choose. New Relic offers different pricing tiers, and the cost typically depends on factors such as the number of synthetic monitors you need, the frequency of monitoring, and the locations from which the tests are run.

For more detailed and up-to-date information on the pricing, I recommend visiting New Relic’s official website or contacting their sales team to get a personalized quote based on your specific monitoring requirements.

2. Can Synthetics Monitoring replace real user monitoring (RUM)?

Synthetics Monitoring and real user monitoring (RUM) serve different purposes and are both valuable in monitoring an application’s performance.

Synthetics Monitoring involves simulating user interactions to monitor an application proactively from various geographic locations. It helps identify issues before real users are affected, and it’s useful for tracking uptime, response times, and overall availability.

On the other hand, RUM captures data from actual users’ interactions with your website or application. It provides insights into how real users experience your application, including their devices, browsers, and geographic locations. RUM can highlight user-specific issues and user behavior trends.

Both monitoring approaches complement each other and together provide a comprehensive understanding of an application’s performance and user experience.

3. How frequently should I run Synthetics Monitors?

The frequency of running Synthetics Monitors depends on your monitoring needs and how frequently you want to check your application’s performance and availability.

For critical applications or services, it’s common to run synthetic tests more frequently, even as often as every few minutes. This high frequency allows for quick detection of any issues or performance degradation.

For less critical applications, you might choose to run the tests less frequently, like every 15 minutes or half an hour.

Consider your application’s usage patterns, user expectations, and the potential impact of any downtime or performance issues when deciding on the monitoring frequency.

4. Can I simulate user interactions with different devices and browsers?

Yes, New Relic’s Synthetics Monitoring allows you to simulate user interactions with different devices and browsers. This capability is crucial for understanding how your application performs across various platforms and environments.

When creating synthetic tests, you can specify the device types (e.g., desktop, mobile) and choose from a variety of browsers (e.g., Chrome, Firefox, Safari) to simulate user interactions accurately.

By testing with different devices and browsers, you gain insights into potential compatibility issues and performance variations experienced by your users.

5. Are there any limitations to the complexity of test scripts?

While New Relic’s Synthetics Monitoring allows you to create custom test scripts for more advanced scenarios, there are some limitations to consider:

Execution Time: Synthetic tests are designed to run within specific time limits. If your test script takes too long to execute, it may not complete successfully.

Third-Party Dependencies: The test scripts should be written with consideration for any third-party dependencies, such as APIs or external services, to ensure the tests can execute properly.

Single Page Applications (SPAs): Testing SPAs with complex JavaScript frameworks may require additional configuration and considerations to ensure accurate monitoring results.

Geographic Testing Locations: While New Relic offers a variety of testing locations, the availability of specific locations might have limitations based on your subscription tier.

Always test and validate your scripts during the setup process to ensure they function as intended and account for any possible limitations.

Remember that New Relic’s support and documentation can provide additional insights into the capabilities and limitations of Synthetics Monitoring to help you make the most of the feature.

Leave a comment