site-performance-watch

name	site-performance-watch
description	Monitoring and alerting framework for ecommerce site speed, errors, and uptime.

Site Performance Watch Skill

When to Use

• Setting up proactive monitoring during campaigns or launches.
• Investigating conversion drops tied to latency or availability issues.
• Communicating performance incidents to merchandising and engineering teams.

Framework

1. KPI Stack – FCP, LCP, CLS, TTFB, checkout API latency, error rates, uptime.
2. Segmentation – device, geography, browser, promotion, traffic source.
3. Alerting Rules – thresholds, aggregation windows, escalation paths, war-room triggers.
4. Diagnostics – logging, tracing, screenshot/session replay hooks.
5. Comms Kit – stakeholder updates, status pages, rollback plans.

Templates

• Performance scorecard with spark lines + thresholds.
• Incident log template with root cause, mitigation, and follow-up tasks.
• Escalation matrix covering engineering, DevOps, merchandising, and CX leads.

Tips

• Pair synthetic monitoring with RUM data to catch both systemic and localized issues.
• Freeze experiment/merch changes when performance breaches critical thresholds.
• Use alongside diagnose-conversion-drop to correlate experience and performance data.

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