Advanced
    Technical

    What is Core Web Vitals?
    SEO Definition and Examples

    Core Web Vitals are 3 technical Google metrics — LCP, INP and CLS — that measure page user experience and have been official ranking factors since 2021.

    Author:Iordache Alexandru·

    Full Definition: What is Core Web Vitals

    Core Web Vitals are 3 metrics defined by Google to measure the user experience of a web page: (1) LCP (Largest Contentful Paint) — how long the largest visual element takes to load, ideally under 2.5s; (2) INP (Interaction to Next Paint) — how fast the page responds to interactions, ideally under 200ms; (3) CLS (Cumulative Layout Shift) — how much elements move visually while the page loads, ideally under 0.1. They are measured with Google PageSpeed Insights and Google Search Console.

    Why Does Core Web Vitals Matter for SEO?

    Google has confirmed that Core Web Vitals have been ranking factors since May 2021. Pages with "Poor" scores on LCP or INP are at a disadvantage in the SERP against competitors with "Good" scores. Especially on mobile, which accounts for 65% of web traffic in Romania.

    Source: Google — Core Web Vitals

    How Rank-Ro Helps You with Core Web Vitals

    Rank-Ro articles are generated as clean HTML optimized for performance. We recommend WordPress with a lightweight theme or Next.js to ensure good Core Web Vitals.

    Put Core Web Vitals into practice
    with Rank-Ro, for free

    Frequently Asked Questions about Core Web Vitals