What is Real User Monitoring?
Real User Monitoring (RUM) is an innovative technology that tracks and analyzes the actual experience of real users when using your web application. Unlike traditional synthetic testing, RUM collects data directly from user browsers, giving you visibility into how your application performs in real-world environments. Flashduty RUM enables developers, operations engineers, and business stakeholders to intuitively understand application performance, identify issues promptly, and continuously optimize user experience.Core Capabilities
Performance Monitoring
Performance Monitoring
Monitor key performance metrics in real-time including page load times, resource loading efficiency, and JavaScript execution to quickly identify bottlenecks affecting user experience.
- Page performance: Core Web Vitals including LCP, FID, CLS
- Resource analysis: Load times for images, scripts, and stylesheets
- API monitoring: API request response times and success rates
Error Tracking
Error Tracking
Automatically capture JavaScript errors, network failures, and other issues affecting users, with rich contextual information to help quickly identify and resolve problems.
- Error grouping: Automatic categorization of similar errors
- Stack trace restoration: Source Map support for de-obfuscation
- Impact analysis: Number of affected users and sessions
Insights
Insights
Deep analysis of performance for images, scripts, API calls, and other resources to optimize loading speed and understand data trends.
- Trend analysis: Performance metrics over time
- Dimension drill-down: Analysis by browser, device, and region
- Comparative analysis: Performance comparison between versions
Session Replay
Session Replay
Reproduce user operation paths and replay user sessions as video to quickly replicate and locate issues.
- Action replay: Restoration of clicks, scrolls, inputs, and other actions
- Error location: Jump directly to the moment an error occurred
- Privacy protection: Automatic masking of sensitive information
Why Choose Flashduty RUM?
Full-spectrum Visibility
Understand application performance from the user perspective across different browsers, devices, and regions
Issue Alerts
Detect and resolve issues before they escalate, comprehensively improving application stability
Data-driven
Make optimization decisions based on real user data instead of guesswork
Ecosystem Integration
Deep integration with Flashduty monitoring ecosystem for end-to-end frontend-backend issue identification
The JavaScript SDK is designed to be lightweight, only ~30KB after gzip compression, minimizing performance impact while ensuring data collection.
How It Works
Flashduty RUM collects data by embedding a lightweight JavaScript SDK in your web application:
SDK Integration
Include the RUM SDK in your application, configure the application ID and collection parameters
Data Collection
The SDK automatically collects page visits, resource loads, user interactions, and error information
Real-time Reporting
Collected data is transmitted in real-time to the Flashduty backend for processing and analysis
Data Types Collected
| Data Type | Description |
|---|---|
| Page visits | Page load process, navigation timing, user environment information |
| Resource loads | Loading status of images, scripts, stylesheets, and API calls |
| User interactions | Clicks, form submissions, and custom events |
| Error information | JavaScript exceptions, network failures, console errors |
| Long tasks | Time-consuming JavaScript tasks that may cause page stuttering |