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.