Yes — Interaction to Next Paint replaced First Input Delay as the responsiveness metric.

Are Core Web Vitals a direct ranking factor?

They're part of Google's page experience signals and can influence rankings, especially among otherwise similar pages.

What's the fastest way to improve LCP?

Optimize and properly size your largest above-the-fold image or text block, and reduce render-blocking resources.

Home / Insights / Core Web Vitals Explained

SEO

Core Web Vitals Explained

August 6, 2026 · 7 min read

Executive summary

Core Web Vitals measure real-world loading speed, responsiveness and visual stability. Google uses them as part of page experience signals, and poor scores directly hurt user experience regardless of SEO impact.

The direct answer

Core Web Vitals are three metrics: Largest Contentful Paint (loading speed), Interaction to Next Paint (responsiveness), and Cumulative Layout Shift (visual stability) — each with a "good" threshold Google uses as a page experience signal.

Step-by-step

Common mistakes

Frequently asked questions

Key takeaways

LCP, INP and CLS each measure a distinct part of real-world experience.
Image optimization and reduced render-blocking scripts fix most LCP issues.
Reserved space for dynamic elements prevents most CLS problems.

→ Technical SEO Checklist → Website Development (service page)

Core Web Vitals Explained

The direct answer

Step-by-step

Common mistakes

Frequently asked questions

Related