Core Web Vitals Guide: What They Are & How to Fix Them

Core Web Vitals are three specific metrics Google uses to measure page experience:

• LCP (Largest Contentful Paint) — How quickly the largest visible element loads. Target: under 2.5 seconds.
• INP (Interaction to Next Paint) — How responsive the page is to user interactions. Target: under 200 milliseconds.
• CLS (Cumulative Layout Shift) — How much the page layout shifts during loading. Target: under 0.1.

These are part of our technical SEO and Google optimisation services.

• Optimise and compress images (WebP format, proper sizing)
• Reduce server response times (TTFB)
• Remove render-blocking JavaScript and CSS
• Implement proper caching headers
• Use a CDN for static assets

INP improvements:

• Reduce JavaScript execution time
• Break up long tasks into smaller chunks
• Optimise event handlers and third-party scripts

CLS improvements:

• Set explicit width/height on images and embeds
• Reserve space for ads and dynamic content
• Avoid inserting content above existing content after load

Do Core Web Vitals directly affect rankings?

How do I check my Core Web Vitals?

Can CWV improvements increase conversions?

How often should I check CWV?