Tracks Core Web Vitals using GA4 to improve site speed and user experience. Covers daily trends and the share of Good/Poor/Needs‑Improvement for LCP, with dedicated sections for CLS, FID, and INP. Highlights problematic URLs with page‑level metrics, plus quick KPIs like average LCP, active users, and event counts. Compares performance by device, country, browser, and device brand to locate where issues cluster. Helps prioritize fixes that protect SEO, conversions, and customer satisfaction.