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7.9Practical Advice for QA Architects
- Start with three pages: homepage, one product/content page, and the most critical conversion page (checkout, signup). Expand coverage incrementally.
- Align budgets with business goals. A 100ms improvement in LCP can measurably improve conversion rates. Use published case studies (Google, Walmart, BBC) to justify budget investments.
- Make results visible. Post Lighthouse scores as PR comments so developers see the impact of their changes before merge.
- Pair with Real User Monitoring (RUM). Lighthouse CI measures synthetic performance. RUM tools (Google Analytics, Datadog RUM) measure actual user experience. Use both to validate that synthetic budgets reflect real-world performance.