Understanding Core Web Vitals | Araptus

Understanding Core Web Vitals: Boosting Your Website's Performance

Written by Kris Black on June 1, 2024

In the ever-evolving digital landscape, providing an optimal user experience is paramount. Google's Core Web Vitals are a set of specific factors that Google considers important in a webpage's overall user experience. These metrics are part of Google's efforts to ensure that websites meet user expectations in terms of speed, responsiveness, and visual stability.

What are Core Web Vitals?

Core Web Vitals are a subset of Web Vitals, focusing on three key aspects of user experience:

  • Largest Contentful Paint (LCP): Measures loading performance. To provide a good user experience, LCP should occur within 2.5 seconds of when the page first starts loading.
  • First Input Delay (FID): Measures interactivity. Pages should have an FID of less than 100 milliseconds to ensure good user experience.
  • Cumulative Layout Shift (CLS): Measures visual stability. Pages should maintain a CLS of less than 0.1 to ensure that the page is visually stable and doesn't shift unexpectedly.

Why Core Web Vitals Matter

Core Web Vitals are crucial because they directly impact user experience and search engine rankings:

  • Enhanced User Experience: A website that loads quickly, responds promptly to user interactions, and maintains visual stability provides a better user experience, reducing bounce rates and increasing engagement.
  • Improved SEO Rankings: Google uses Core Web Vitals as ranking signals. Websites that meet these benchmarks are more likely to rank higher in search results, leading to increased organic traffic.
  • Increased Conversions: A positive user experience encourages visitors to stay longer and interact more with your website, leading to higher conversion rates.

How to Improve Your Core Web Vitals

Here are some strategies to improve your Core Web Vitals:

  • Optimize Your Images: Use modern image formats like WebP, compress images, and implement responsive images with srcset to improve loading times and visual stability.
  • Leverage Browser Caching: Enable browser caching to store static resources on users' devices, reducing load times for subsequent visits.
  • Minimize JavaScript and CSS: Remove unused code, minify JavaScript and CSS files, and defer non-critical resources to enhance loading performance and interactivity.
  • Use a Content Delivery Network (CDN): Distribute your content across multiple servers worldwide to ensure faster delivery of resources to users.
  • Improve Server Response Time: Optimize your server and database performance to reduce the time it takes for the server to respond to requests.
  • Implement Lazy Loading: Load images and other resources only when they are needed, rather than all at once, to improve initial load times.


Core Web Vitals are essential metrics for measuring and improving your website's performance and user experience. By focusing on LCP, FID, and CLS, you can ensure your website provides a fast, responsive, and visually stable experience for users. Improving these metrics will not only enhance user satisfaction but also boost your SEO rankings and overall website performance. Start optimizing your Core Web Vitals today to stay ahead in the digital landscape.

Written by Kris Black on May 29, 2024