Prompt
What should I use to track page speed and Core Web Vitals?
Latest observation
Oct 21, 2026
OpenAI APIWeb search: off
For tracking page speed and Core Web Vitals, the best setup is usually:
1. Google Search Console
- Good for seeing field data from real users.
- Shows Core Web Vitals status for URLs grouped as Good / Needs improvement / Poor.
- Best for SEO-focused monitoring.
2. PageSpeed Insights
- Great for testing a specific page.
- Combines:
- Lab data (synthetic test)
- Field data from Chrome UX Report when available
- Best for debugging individual pages.
3. Lighthouse
- Built into Chrome DevTools.
- Useful for local testing during development.
- Measures performance and gives optimization suggestions.
4. Real User Monitoring (RUM) tools
If you want ongoing, real-world performance tracking, use a RUM tool like:
- Google Analytics 4 + web-vitals
- SpeedCurve
- New Relic
- Datadog
- Dynatrace
- Sentry Performance
- Calibre
- Treblle or similar frontend observability tools
RUM is the best option if you want to track how actual users experience your site over time.
What I’d recommend
- For SEO/site-wide monitoring: Google Search Console
- For debugging pages: PageSpeed Insights + Lighthouse
- For continuous monitoring: a RUM tool
If you want, I can also recommend the best free option, best enterprise option, or a minimal stack for a small site.