Google Lighthouse is a tool that audits web pages for performance (Core Web Vitals), accessibility, SEO, and best practices. Developers use it to identify bottlenecks and fix them. High scores correlate with user retention and SEO ranking. Mastery takes 2-4 weeks. Understanding Lighthouse is standard for all frontend developers (2024+). Demand is universal.
Google Lighthouse is a browser-based tool that audits websites for performance, accessibility, SEO, and best practices. It generates a report with scores (0-100) and actionable recommendations. The report highlights bottlenecks: "Images too large, use WebP", "Third-party scripts block rendering", "Low color contrast on buttons". Lighthouse is built into Chrome DevTools, available as CLI tool, and integrated into CI/CD pipelines. It's the de facto standard for web quality assessment (2024+).
| Region | Junior | Mid | Senior |
|---|---|---|---|
| USA | $65k | $105k | $160k |
| UK | $40k | $65k | $100k |
| EU | $42k | $68k | $105k |
| CANADA | $70k | $110k | $165k |
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