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CORE WEB VITALS

Core Web Vitals: Examples & Best Practices

Core Web Vitals set Google’s standard for page experience. Learn what LCP, INP, and CLS measure and how to improve your scores for better search rankings.

2–3 minutes
Denton Chikura

CHAPTERS

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    The quick download:

    Core Web Vitals are Google’s key metrics for measuring page experience through loading speed, interactivity, and visual stability.

    • Largest Contentful Paint (LCP) measures how fast your page loads, directly impacting whether searchers wait or leave.

    • Interaction to Next Paint (INP) assesses how quickly your website responds to user clicks and interactions.

    • Cumulative Layout Shift (CLS) calculates visual stability to ensure content doesn’t jump around as pages load.

    • Optimizing these three metrics improves both search rankings and user satisfaction on your website.

    Introduction

    When we search, we expect the best answer to appear instantly and at the top of the page. Google is constantly improving its search algorithms to deliver on that expectation and surface the most useful content. 

    Google’s challenge is forcing content creators to produce high-quality content instead of techniques to trick the search engine. With each monthly algorithm improvement, the search engine inches closer to better interpreting our search intent and matching it to the best available content.

    Below are a few of the more than two hundred signals that help the search engine do just that:

    • Website’s reputation: Do reputable websites link to the one hosting the content?
    • Relevance: Are the titles, headings, and content related to the search?
    • Freshness: How recent is the content?
    • Length: How deep is the content?
    • Backlinks: Do other relevant articles link to the page containing the content?
    • User Engagement: How long do readers stay on the page?
    • Navigation: Is the website easy to navigate?
    • Mobile-friendly: Are the pages easy to read on a variety of mobile devices?
    • HTTPS: Are the pages secure by having valid security certificates?

    Google also added a few more signals collectively known as “page experience” to the existing long list of signals. The rationale behind this addition is to find the answer to the following questions:

    Loading: Does the page load fast or leave searchers waiting?

    Interactivity: Does the page respond quickly to user clicks upon loading?

    Visual Stability: Does the content jump around as it loads, or is it stable?

    The contributors to the page experience signal (source)

    The technical names for the core web vital signals are: 

    • Largest Contentful Paint (LCP) for measuring the loading speed
    • Interaction to Next Paint(INP) for assessing website responsiveness to user interactions.
    • Cumulative Layout Shift (CLS) for calculating the visual stability
    The Core Web Vitals components (source)

    We created this guide to help website developers, performance engineers, and technical SEO specialists with the following:

    • Explain each concept in detail 
    • Provide the best tools and instructions for measuring the core web vitals 
    • Help readers improve the core web vital scores of their web pages

    We also introduce three other web page measurements beyond the core web vitals (chapters four to six listed below) because website developers and SEO managers often reference them. Together, these chapters give you a practical playbook for understanding, measuring, and improving real-world page experience.

    Implement Core Web Vitals monitoring to optimize your website’s performance and search rankings.

    LogicMonitor provides comprehensive website monitoring that tracks Core Web Vitals alongside your infrastructure metrics. See how unified observability can help you deliver the instant gratification your users expect.

    FAQs

    What are Core Web Vitals?

    Core Web Vitals are three performance metrics Google uses to evaluate page experience: Largest Contentful Paint (loading speed), Interaction to Next Paint (responsiveness), and Cumulative Layout Shift (visual stability). Google treats these as key signals when assessing how users experience your pages in search.

    How does Google use Core Web Vitals in Search?

    Google uses Core Web Vitals as part of its page experience assessment, alongside relevance and overall content quality. When two pages offer similar content, the one that consistently meets the “good” thresholds for LCP, INP, and CLS is more likely to provide a better user experience and may perform better in Search.

    How do I check my Core Web Vitals?

    You can use tools like Google PageSpeed Insights, Chrome DevTools, or WebPageTest. For real user data, the Chrome User Experience Report (CrUX) is the most reliable source.

    What is a passing score for Core Web Vitals?

    Google considers your scores to pass when LCP is 2.5 seconds or less, INP is 200 milliseconds or less, and CLS is 0.1 or less, each measured at the 75th percentile of page loads.

    By Denton Chikura

    Technical Writer

    Denton Chikura is a technical writer and longtime observability advocate focused on helping site reliability engineers and engineering teams discover the tools and capabilities that strengthen internet resilience. He works at the intersection of monitoring, performance, and infrastructure to make complex systems more understandable and usable, bridging the gap between deep technical detail and real‑world operations. His goal is to help teams build faster, detect issues earlier, and recover smarter, ultimately making the internet a better, more reliable place for everyone.

    Disclaimer: The views expressed on this blog are those of the author and do not necessarily reflect the views of LogicMonitor or its affiliates.

    © LogicMonitor 2026 | All rights reserved. | All trademarks, trade names, service marks, and logos referenced herein belong to their respective companies.

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