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Web Vitals Guides

In-depth guides with production-ready code to fix LCP, INP, CLS, and TTFB. Written by performance engineers.

LCPCLSINPTTFBGeneral

How to Fix LCP (Largest Contentful Paint) — Complete Guide

Learn exactly how to fix LCP issues and bring your Largest Contentful Paint under 2.5 seconds. Includes code snippets for image optimization, preloading, and server-side fixes.

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CLSintermediate 7 min

How to Fix CLS (Cumulative Layout Shift) — Stop Layout Jank

Eliminate unexpected layout shifts and bring your CLS score below 0.1. Learn the exact causes of layout shift and production-ready fixes for images, fonts, ads, and dynamic content.

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INPadvanced 9 min

How to Fix INP (Interaction to Next Paint) — Responsiveness Guide

Improve your INP score and make your site respond instantly to user interactions. Covers event handler optimization, main thread management, and debouncing techniques.

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TTFBintermediate 6 min

How to Reduce TTFB (Time to First Byte) — Server Speed Guide

Cut your TTFB below 200ms with CDN configuration, caching strategies, server optimization, and edge computing. The foundation of all Web Vitals performance.

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Generalbeginner 5 min

Lazy Loading Images — The Complete Implementation Guide

Master lazy loading with native browser support, Intersection Observer, and framework-specific implementations. Reduce initial load by 40-60% while keeping images snappy.

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Generalbeginner 10 min

How to Improve Your Lighthouse Score from 50 to 90+

A tactical guide to dramatically improving your Google Lighthouse performance score. Covers the exact audit items that move the needle most, with prioritized fix order.

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