Shared agentsLogs
All indexed, no sampling.
- Observability & Monitoring
//Frontend Monitoring
Frontend monitoring.See what your users see.
Real user monitoring, session to stack trace. Performance, interactions, and frontend errors from one SDK.
Unified
RUM next to your backend data
Frontend errors and backend traces in the same platform, not a separate RUM tool.
Session replay
Click-by-click session replay
Watch exactly what a user did before an error happened.
Setup
Simple implementation
One JavaScript snippet at your entry point, and real user data starts flowing.
//Overview
What is real user monitoring (RUM)?
Real user monitoring (RUM) measures what actual users experience in the browser, including page load performance, Core Web Vitals, interactions and JavaScript errors, so teams can fix what users really feel.
DataObserve Sense collects RUM, errors with full stack traces and click-by-click session replay from one SDK, and links each frontend event to the backend trace behind it.
//From a user's click to root cause
Experience, errors, and performance
Performance metrics
Page load, First Contentful Paint, Largest Contentful Paint, and Time to Interactive.
User journey analysis
How real users navigate, and where they hit friction.
Error capture
Complete stack traces, browser details, and the actions that triggered each error.
Impact analysis
Which errors hurt users most, across browsers and devices.
Resource load time
Slow assets and API calls, and the backends behind them.
Custom events
The interactions and business events that matter to you.
//Explore more withDataObserve
More from Sense · Observability & Monitoring
Metrics
PromQL and SQL, full resolution, retained.
- Observability & Monitoring
Traces
OpenTelemetry-native, no sampling.
- Observability & Monitoring
Synthetic Monitoring
API and browser checks, global or private, unified with the rest of your observability.
- Observability & Monitoring
//FAQs
Frontend Monitoring: questions teams ask
Which metrics are collected?
FCP, LCP, Time to Interactive, resource loading, API latencies, and custom timing marks.
How are errors captured?
Automatically, with full stack traces, browser details, and the user actions leading up to them.
Can I control sampling?
Yes. Sampling rates by traffic pattern, with retention per data type.
What is session replay?
Session replay reconstructs a user's session click by click, so you can see exactly what happened before an error or slow page.
What are Core Web Vitals?
Core Web Vitals are Google's user-experience metrics for loading, interactivity and visual stability, including Largest Contentful Paint (LCP). DataObserve Sense records them from real users.
Can frontend errors be traced to the backend?
Yes. RUM and backend tracing share trace context, so a frontend error links to the API call and service that caused it.
