10.1.6 · Skill in Product observability
Performance monitoring
Tracking real-world speed and errors as users experience them.
Application performance monitoring and real user monitoring measure speed and errors in production. Lab tests miss slow devices and networks. Error tracking tools group exceptions so the important ones stand out.
Resources
1- articleStart hereWeb vitals ↗web.dev (Google) · 2020 · 12 min
The three metrics Google uses for loading, responsiveness and visual stability, and their thresholds.
Tools
1- ToolFreemiumSentry
Error tracking and performance monitoring that groups exceptions and links them to releases.