DEV Community

Web Performance

All things speed and scalability on the web.

Posts

👋 Sign in for the ability to sort posts by relevant, latest, or top.
There was no independent, measured view of AI-API latency by region — so I built one

There was no independent, measured view of AI-API latency by region — so I built one

Comments
4 min read
WebP vs AVIF vs PNG vs JPEG: A Practical Format Guide for 2026

WebP vs AVIF vs PNG vs JPEG: A Practical Format Guide for 2026

Comments
1 min read
Why Lighthouse and Real-User Core Web Vitals Show Different Results

Why Lighthouse and Real-User Core Web Vitals Show Different Results

Comments
5 min read
A Practical Guide to Optimizing a Next.js WebGL Game

A Practical Guide to Optimizing a Next.js WebGL Game

Comments
7 min read
Breaking the Chain: Eliminating Data Waterfalls in Next.js ⚡

Breaking the Chain: Eliminating Data Waterfalls in Next.js ⚡

Comments
2 min read
Engineering for Speed: Lessons from ReBALKAN’s Four-Platform Performance Tests

Engineering for Speed: Lessons from ReBALKAN’s Four-Platform Performance Tests

Comments
4 min read
How AI Crawlers Actually Read Your Site: A Developer's Guide to GEO & llms.txt (2026)

How AI Crawlers Actually Read Your Site: A Developer's Guide to GEO & llms.txt (2026)

Comments 2
4 min read
Building High-Performance Martial Arts E-Commerce Stores: A Developer's Guide

Building High-Performance Martial Arts E-Commerce Stores: A Developer's Guide

Comments
2 min read
I ran technical audits on 8 sites that asked Reddit for feedback. The same 5 things kept breaking.

I ran technical audits on 8 sites that asked Reddit for feedback. The same 5 things kept breaking.

2
Comments 9
3 min read
Network Performance for Web Teams: DNS, TLS, HTTP, CDN, and Cache Rules

Network Performance for Web Teams: DNS, TLS, HTTP, CDN, and Cache Rules

Comments
10 min read
A 100% client-side toolbox: shipping 17 calculators with no backend

A 100% client-side toolbox: shipping 17 calculators with no backend

3
Comments 2
3 min read
How Next.js Image Optimization Works Under the Hood

How Next.js Image Optimization Works Under the Hood

Comments
5 min read
More clients, same team: scale agency monitoring without headcount

More clients, same team: scale agency monitoring without headcount

Comments
5 min read
Stop DOM Freezes: Virtualized Lists in React ⚡

Stop DOM Freezes: Virtualized Lists in React ⚡

Comments
3 min read
Unblock the Main Thread: Partytown in Next.js ⚡

Unblock the Main Thread: Partytown in Next.js ⚡

Comments
3 min read
👋 Sign in for the ability to sort posts by relevant, latest, or top.