SEO BRIEF (delete before publish)
Focus keyphrase: core web vitals
URL slug: core-web-vitals-guide
Meta description: Core Web Vitals explained in plain language for marketers: what LCP, INP, and CLS mean, good thresholds, and how to improve each one.
Search intent: Marketer wants to understand and improve Core Web Vitals.
Secondary keywords: lcp, inp, cls, largest contentful paint, cumulative layout shift
Internal links: link to /frontend-performance-marketing-sites/, /reduce-javascript-execution-time/
[Intro: 2-3 sentences. State the problem, who it affects, and the payoff of reading. Include the focus keyphrase naturally in the first 100 words.]
What Are Core Web Vitals?
[Overview and why Google uses them.]
Largest Contentful Paint (LCP)
[Definition, thresholds, fixes.]
Interaction to Next Paint (INP)
[Definition, thresholds, JS impact.]
Cumulative Layout Shift (CLS)
[Definition, thresholds, fixes.]
How to Measure Core Web Vitals
[PSI, CrUX, field vs lab data.]
Frequently Asked Questions
[FAQ.]