What is Core Web Vitals?
TL;DR
A set of specific metrics that Google uses to measure user experience on web pages. The three Core Web Vitals are LCP (Largest Contentful Paint) for loading performance, INP (Interaction to Next Paint) for interactivity, and CLS (Cumulative Layout Shift) for visual stability. They are an important Technical SEO factor and influence both search rankings and User Experience.
On this page
Frequently Asked Questions About Core Web Vitals
What are Core Web Vitals?
Core Web Vitals are three specific metrics Google uses to measure user experience: LCP (loading speed), INP (interactivity), and CLS (visual stability). They directly affect your Google rankings and user satisfaction.
How do Core Web Vitals affect SEO?
Core Web Vitals are a confirmed Google ranking factor. Sites with better scores rank higher, especially on mobile. They also affect user behavior, faster, more stable sites have lower bounce rates and higher engagement.
What is a good Core Web Vitals score?
Good scores are: LCP under 2.5 seconds, INP under 200 milliseconds, and CLS under 0.1. You can check your scores in Google PageSpeed Insights or Google Search Console's Core Web Vitals report.
How can I improve my Core Web Vitals?
Common improvements include: optimizing images (WebP format, lazy loading), minimizing JavaScript, using efficient hosting, enabling caching, reducing third-party scripts, and fixing layout shifts caused by ads or dynamic content.
Do Core Web Vitals matter for mobile and desktop separately?
Yes, Google measures Core Web Vitals separately for mobile and desktop. Mobile scores often lag behind due to slower connections and less powerful devices. Since Google uses mobile-first indexing, mobile scores are more critical.
Terms Related to Core Web Vitals
Responsive Design
A web design approach that creates sites adapting seamlessly to different screen sizes and devices. Responsive design us...
Read definition SEOTechnical SEO
The process of optimizing a website's infrastructure to help search engines crawl, index, and render pages effectively....
Read definition Web DesignUser Experience
The overall experience a user has when interacting with a website or application, encompassing usability, Accessibility,...
Read definition Web DesignA/B Testing
Comparing two versions of a webpage to see which performs better. You show version A to half your visitors and version B...
Read definition Web DesignAbove the Fold
The portion of a webpage visible without scrolling. Critical content, headlines, and Call To Actions should appear above...
Read definition Web DesignAccessibility
Making your website usable by people with disabilities, visual, auditory, motor, and cognitive. This includes proper Alt...
Read definition
