Explore Core Web Vitals
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A better score means a better experience
A website with strong Core Web Vitals provides a better experience for visitors and performs more effectively in search results.
Understanding the Three Core Web Vitals
Together, these three metrics help website owners understand whether visitors are receiving a fast and seamless browsing experience.
Largest Contentful Paint (LCP)
Measures how long it takes for the largest visible content element to load. A good score is 2.5 seconds or less. Commonly affected by slow server response, large images, render-blocking CSS, heavy JavaScript, and poor hosting.
Interaction to Next Paint (INP)
Measures how quickly a website responds when users click, tap, or type. A good score is 200 milliseconds or less. Commonly affected by heavy JavaScript execution, long processing tasks, and third-party scripts.
Cumulative Layout Shift (CLS)
Measures the visual stability of a page while it loads. A good score is 0.1 or lower. Commonly caused by images without dimensions, late-loading fonts, and embedded media without reserved space.
What causes poor Core Web Vitals
Many websites experience poor Core Web Vitals because of technical and performance-related issues. Addressing these issues significantly improves website performance.
Issues we commonly find
- • Large image files
- • Unoptimized JavaScript
- • Excessive CSS
- • Poor hosting
- • Multiple third-party scripts
- • Render-blocking resources
- • Missing browser caching
- • Slow database queries
- • Large font files
- • Excessive network requests
Best Practices for Improving Vitals
Compress Images
Reduce file size using modern formats without losing visual quality.
Enable Browser Caching
Let returning visitors load pages faster from stored resources.
Minify CSS and JavaScript
Strip unnecessary code so browsers parse and render faster.
Reduce Third-Party Scripts
Limit external scripts that block rendering and slow interactivity.
Tools to Measure Core Web Vitals
Several free and professional tools help evaluate Core Web Vitals performance. Regular testing allows issues to be identified before they affect users.
Google PageSpeed Insights
Scores real-world and lab performance data against Core Web Vitals thresholds.
Google Search Console
Reports Core Web Vitals issues Google has detected across a live website.
Lighthouse
Runs automated audits for performance, accessibility, and best practices.
Chrome DevTools
Profiles rendering, JavaScript execution, and network activity in the browser itself.
GTmetrix
Breaks down load waterfall charts to pinpoint exactly what is slowing a page down.
Chrome User Experience Report (CrUX)
Shows real-world Core Web Vitals data collected from actual Chrome users.
Go Deeper on Individual Metrics
Together, these resources provide a complete understanding of website speed optimization and technical performance.
How to Build Fast Websites
Foundational principles for performance-first website development.
Website Speed Checklist
Essential optimization steps every website should complete before launch.
LCP Optimization Guide
Techniques for improving how quickly the main content of a page becomes visible.
CLS Optimization Guide
Methods for keeping page layout stable as resources load in.
INP Optimization Guide
Ways to keep a page responsive to clicks, taps, and keyboard input.
Image Optimization Services
Reducing image file size and format overhead without losing visual quality.
CDN Optimization
Configuring content delivery networks to shorten the distance data travels.
JavaScript Performance
Minimizing script execution time so pages stay interactive sooner.
Lazy Loading Images
Deferring offscreen media so the initial page load stays lightweight.
How The Bot Digital Solutions Improves Core Web Vitals
We optimize websites by improving every aspect of technical performance. Our optimization process focuses on improving loading speed, reducing layout shifts, increasing responsiveness, and ensuring websites meet Google's latest performance standards.
Website Architecture
Reviewing structure and resource delivery to support faster rendering.
Hosting Environments
Ensuring server infrastructure can respond quickly under real traffic.
Front-End Code
Cleaning up CSS and JavaScript that block or delay rendering.
Images
Compressing and serving images in modern, appropriately sized formats.
Caching Strategies
Configuring browser and server caching for faster repeat visits.
Server Response Times
Reducing back-end processing time to speed up LCP.
Ready for the next step
Ready to Improve Your Core Web Vitals?
Get a Core Web Vitals assessment and a clear plan to improve LCP, INP, and CLS scores across your website.
Core Web Vitals FAQs
Common questions businesses ask about measuring and improving Core Web Vitals.
Core Web Vitals are Google's website performance metrics that measure loading speed (LCP), responsiveness (INP), and visual stability (CLS) to evaluate user experience.
Still have questions?
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Schedule a Free Discovery Call →Related services
These services put Core Web Vitals improvements into practice on a live website.
Put this guide into practice
Start with a Core Web Vitals assessment
We analyze your website's LCP, INP, and CLS scores and help you prioritize fixes that improve performance and rankings.