Page speed is both a ranking factor and a conversion factor. A 1-second delay reduces conversions by up to 7%. In 2026, with Google's Core Web Vitals deeply embedded in ranking algorithms, speed is non-negotiable.
The Three Key Metrics
LCP (Largest Contentful Paint) — aim for under 2.5 seconds. Optimise your hero image by using WebP format, correct dimensions, and a CDN.
CLS (Cumulative Layout Shift) — aim for under 0.1. Always specify width and height attributes on images and embeds.
INP (Interaction to Next Paint) — aim for under 200ms. This replaced FID in 2024 and measures overall interactivity.
Quick Wins
- Enable server-side compression (gzip/brotli)
- Implement browser caching headers
- Defer non-critical JavaScript
- Use a CDN for static assets
- Convert images to WebP format
For WordPress Sites
Install WP Rocket or LiteSpeed Cache, use Cloudflare as your CDN, and leverage lazy loading for images below the fold.
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