How to monitor failed API requests in production
Failed API requests explain many silent website failures. Learn how to track failed and slow browser requests and connect them to pages and sessions.

Failed requests are silent user blockers
A visitor can click a button, submit a form, or open a dashboard while an API request fails in the background. The page may not fully crash, but the user cannot finish the job.
Monitoring failed API requests helps teams find broken production paths even when the server itself looks healthy.
What to capture
A useful request signal includes the page URL, request method, request path, status code, duration, session ID, and nearby user actions. HeronSignal captures failed and slow browser requests so teams can see where they happened and who was affected.
- 4xx and 5xx browser-side API responses
- Network failures and request exceptions
- Slow requests above a configured threshold
- Affected page, browser, country, and session journey
Why this helps business teams
Failed requests often explain why visitors abandon lead forms, checkout, login, onboarding, or demo requests. Connecting request failures to funnels turns a technical symptom into a business-prioritized fix.
Ready to monitor real website experience?
Use HeronSignal to connect real visitor signals, frontend diagnostics, funnels, and AI guidance.