Dygistic

Core Web Vitals Checker

Measure and improve your website’s key performance metrics like LCP, CLS, and INP. Get actionable insights to optimize for Google’s page experience standards.

Understanding Core Web Vitals: LCP, CLS, and INP Explained

Core Web Vitals are a set of metrics that measure your website’s performance and user experience. Here’s what each metric means:

Largest Contentful Paint (LCP)

Measures the time it takes for the largest visible element on your page (e.g., an image or text block) to load and become visible to the user.

Good Score: Less than 2.5 seconds.

Why It Matters: A fast LCP ensures that users can quickly access meaningful content, reducing bounce rates.

Cumulative Layout Shift (CLS)

Evaluates the visual stability of your page by tracking unexpected layout shifts caused by images, fonts, or ads loading incorrectly.

Good Score: Less than 0.1.

Why It Matters: A stable CLS improves the user experience, ensuring that elements don’t shift unexpectedly and frustrate visitors.

Interaction to Next Paint (INP)

Measures the responsiveness of your page, capturing the time it takes for a user’s interaction (e.g., clicking a button) to result in a visible response.

Good Score: Less than 200 milliseconds.

Why It Matters: A responsive INP ensures a seamless browsing experience, keeping users engaged.

Optimizing Core Web Vitals: Improve LCP, CLS, and INP

Improving your Core Web Vitals can significantly enhance your website’s performance and user experience. Here are actionable steps for each metric:

To Optimize LCP

  • Reduce Server Response Times: Use a Content Delivery Network (CDN) and optimize server settings to deliver content faster.
  • Optimize Images: Use compressed formats like WebP and implement lazy loading for non-critical images.
  • Minimize Render-Blocking Resources: Reduce JavaScript and CSS that delay loading of critical content.

To Optimize CLS

  • Set Dimensions for Media: Always specify width and height attributes for images and videos to prevent unexpected shifts.
  • Optimize Web Fonts: Use font-display: swap; to prevent layout shifts caused by font loading.Avoid
  • Injected Content: Ensure ads or dynamic elements are properly reserved with allocated space in your layout.

To Optimize INP

  • Minimize JavaScript Execution Time: Optimize or defer non-essential JavaScript to improve responsiveness.Use
  • Efficient Event Handlers: Ensure event listeners (e.g., onClick) are optimized for user interactions.
  • Eliminate Long Tasks: Split up complex tasks into smaller, asynchronous operations to reduce delays.

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