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Achieving Perfect Core Web Vitals with WordPress

r0bertmattar7910 April 20261 min read
Achieving Perfect Core Web Vitals with WordPress

Understanding Core Web Vitals

Core Web Vitals are Google’s metrics for measuring user experience:

  • LCP (Largest Contentful Paint) – Loading performance
  • INP (Interaction to Next Paint) – Interactivity
  • CLS (Cumulative Layout Shift) – Visual stability

Why They Matter

Sites with good Core Web Vitals:

  • Rank higher in search results
  • Have lower bounce rates
  • Convert more visitors
  • Provide better user experience

The WordPress Challenge

Traditional WordPress often struggles with Core Web Vitals:

LCP Issues

  • Slow server response times
  • Unoptimised images
  • Render-blocking resources

INP Issues

  • Heavy JavaScript execution
  • Plugin conflicts
  • Poor event handling

CLS Issues

  • Late-loading ads
  • Images without dimensions
  • Dynamic content insertion

The Solution: Static Generation

Our headless approach solves these problems:

Instant Loading

  • Pre-rendered HTML
  • CDN delivery
  • No server processing

Minimal JavaScript

  • Only essential scripts
  • Deferred loading
  • No plugin bloat

Stable Layouts

  • All dimensions defined
  • No layout shifts
  • Predictable rendering

Real Results

Sites we build typically achieve:

  • LCP: < 1.5 seconds
  • INP: < 100ms
  • CLS: < 0.05

All in the “Good” threshold across all devices.

Conclusion

Perfect Core Web Vitals aren’t just achievable – they’re expected with the right architecture. Static site generation makes hitting these targets straightforward.

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