Posts tagged: performance
12 posts
WebP Browser Support Guide: Which Browsers Support WebP in 2026?
Complete WebP browser compatibility chart for 2026. Learn which browsers support WebP natively, fallback strategies for older browsers, and when to use WebP vs JPEG.
WebP vs AVIF in 2026 — Which Modern Image Format Should You Use?
WebP vs AVIF compared: compression ratios, browser support, encoding speed, and when to use each. Which format is right for your website in 2026?
Responsive Images with srcset and sizes: The Complete 2026 Guide
srcset, sizes, picture element, and art direction — how browsers pick the right image for each device, and how to write the markup that saves 40–70% of image bytes on mobile.
React Server Components: Complete Guide for 2026
React Server Components ship zero JavaScript to the browser, stream HTML from the server, and enable a new mental model for data fetching. Here's everything you need to know.
Next.js next/image WebP vs Pre-Converted WebP: Which Is Faster?
next/image converts images to WebP on-the-fly at request time. Pre-converting to WebP at build time eliminates that overhead. Here's a detailed comparison with real benchmark numbers.
next/image vs img Tag: When to Use Which in Next.js
next/image adds automatic WebP conversion, responsive srcset, lazy loading, and CLS prevention. The plain img tag is sometimes the right choice. Here's the decision framework.
How I Improved My Lighthouse Score from 64 to 92 by Converting GIFs to MP4
A real before/after walkthrough of replacing animated GIFs with autoplay-loop-muted MP4 on a marketing site. LCP, total payload, and battery use — every metric improved.
Image Lazy Loading: Native, Intersection Observer, and LCP Traps
loading="lazy" is one attribute but the implementation details matter enormously. Here's when to use native lazy loading, when to use JS, and the LCP trap that kills Lighthouse scores.
Image CDN Optimization: Cloudflare Images vs Cloudinary vs imgix
On-the-fly resizing, format conversion, and edge delivery — a practical comparison of image CDN services for different traffic patterns and budget constraints.
Frontend Performance Optimization Checklist 2026
A practical 30-point checklist covering images, fonts, JavaScript, CSS, caching, and rendering. Every item maps to a measurable Lighthouse or Web Vitals improvement.
Core Web Vitals 2026: LCP, INP, and CLS Complete Guide
Google's ranking signals updated for 2026. LCP under 2.5 s, INP under 200 ms, CLS under 0.1 — what they measure, why they matter, and exactly how to hit the green thresholds.
Best Image Format for Websites in 2026 — Complete Guide
Which image format is best for your website in 2026? WebP, AVIF, JPEG, PNG, or JPEG XL? Complete guide covering performance, SEO, and browser support.