With Core Web Vitals, Google aims to increase web performance. Why? Since the majority of Google’s operations are online-based, sluggish websites and web applications drive users to turn back to native apps.
Why Core Web Vitals?
Content is still king. However, if two popular and similarly written websites are compared, the one that provides the best user experience will be ranked higher in Google search results.
High-performance websites can qualify for inclusion in the mobile search carousel and an improved page rank. Before Accelerated Mobile Pages (AMP), which required you to migrate content into a separate Google-hosted site, this was only available for AMP. Since the pages are not necessarily faster than a well-optimized WordPress or static site, AMP has come under fire.
Google uses a collection of measures called Core Web Vitals to assess the effectiveness of websites. They employ actual data, in contrast to other performance evaluations, to analyze how particular elements of the loading process affect your user experience. Currently, Core Web Vitals measures three things:
- Largest Contentful Paint (LCP), a loading performance indicator
- Interactivity-related First Input Delay (FID)
- Visual stability is related to cumulative layout shift (CLS).
Look for long-running scripts, excessive network requests, and inefficient code blocking the main thread.
Defer Loading of Non-Critical Scripts:
Implement lazy loading for images and iframes using the loading=”lazy” attribute. This defers the loading of these resources until they are near the viewport, reducing initial page load times.
Optimize Third-Party Scripts:
Evaluate the impact of third-party scripts (e.g., analytics, social media widgets) on your website’s performance. Use asynchronous loading and consider deferring non-essential scripts from third-party sources.
Use Web Workers:
Testing and Monitoring:
Regularly test your website’s performance using tools like Lighthouse, PageSpeed Insights, and
Web Vitals Chrome extension.
Continuously monitor your website’s performance to catch performance regressions early and improve as needed.
Content Delivery Network (CDN):
Optimize Images and Other Media:
- Page Loading Speed:
- Mobile Performance:
- User Experience (UX):
- Search Engine Optimization (SEO):
- Browser Compatibility:
- Increased Development and Maintenance Complexity:
- Security Risks:
- Data Usage and Bandwidth:
- Decreased User Retention:
- Increased Hosting Costs: