Core Web Vitals Fix Guide

Core Web Vitals are a confirmed ranking signal, but the Google documentation assumes a level of technical familiarity that most marketers don't have. This guide translates the official specs into fixes you can actually implement or hand to a developer.

It covers all three current Core Web Vitals. For LCP, the guide explains the most common culprits — unoptimised hero images, render-blocking resources, slow server response — and gives specific fixes for each, including preload hints, next-gen image formats, and CDN configuration. For CLS, it covers missing dimension attributes, dynamically injected content, and web font loading. For INP, it explains the concept of long tasks and gives patterns for deferring non-critical JavaScript.

Each section includes a "how to diagnose" step using PageSpeed Insights and Chrome DevTools, so you know you're fixing the right thing before touching code. There's also a one-page summary table at the end showing target thresholds, common causes, and priority fixes for each metric.

Useful for developers, site owners, and SEO professionals who want to understand the metrics rather than just run a plugin.