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

• KPI Stack – FCP, LCP, CLS, TTFB, checkout API latency, error rates, uptime.

• Segmentation – device, geography, browser, promotion, traffic source.

• Alerting Rules – thresholds, aggregation windows, escalation paths, war-room triggers.

• Diagnostics – logging, tracing, screenshot/session replay hooks.

• 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.