10 years of Let's Encrypt certificates

A decade ago, the first publicly-trusted certificate went live.

MCP joins the Linux Foundation

What it means for the next wave of AI development.

“The promise AI companies make to investors is that there will be AIs that can do your job, and when your boss fires you and replaces you with AI, he will keep half of your salary for himself, and give the other half to the AI company.”

Designing decisions

How behavioral psychology moves users.

Simplicity is mastery

Why clear messages win minds, hearts, and markets.

Design Systems Awards 2025

Zeroheight celebrates this year’s winners.

Latest LLMs in the test

GPT 5.1 Codex Max, Gemini 3 Pro, and Claude Opus 4.5.

Web 2.0 strikes back

Using MCP to make your life easier.

Laptop stickers

Each laptop tells a story through its stickers.

Measuring the impact of features

Meet a simple, repeatable, meaningful UX metric.

When square pixels aren’t square

Why a video’s stored resolution can fool web sizing.

Thoughts on native CSS mixins

What they might mean for front-end developers.

Make it ugly, for clients

“So they know what they’re looking at.”

Stop asking AI about how it works

“The model is just confidently hallucinating its own 'reasoning.’”

CSS scroll-triggered animations are coming

Chrome’s next chapter for scroll-based animations.

Safari 26.2

Another big release packed with 62 new features.

Accessible animations and movements

Handling animations for users preferring reduced motion.

Getting creative with “the measure”

“The measure can change how you design.”

Designing for users’ values—or yours?

From designing screens to defining moral guardrails.

AI detection tools?

“They cannot prove that text is AI-generated.”

Why RSS matters

“The future of the web depends on simple, open standards.”

Backup Buddy

Turn your whole website into timeless Markdown.

Efecto

Effects for images, videos, and 3D models.

Input switch polyfill

A polyfill to turn checkboxes into modern switches.

Tunnl.gg

Public URLs for your local web server via SSH.

Loading CSS (fast)

How Compression Dictionaries boost CSS delivery.

Them’s the breaks

Breaking text is easy, doing it well is a choice.

Upvote web features you need

Now on caniuse.com, web.dev, and webstatus.dev.

Design your website like a nice restaurant

“Don’t be afraid to leave an impression.”

Slop

Merriam-Webster’s 2025 word of the year.

Cloudflare Radar 2025 Year in Review

Trends and patterns in internet usage over the year.

Wider support for Core Web Vitals

Firefox and Safari now support LCP and INP metrics.

State of HTML 2025

Trends in the web development ecosystem.

The new ChatGPT Images is here

It generates faster and more accurate results.

Mozilla’s next chapter

“Firefox will evolve into a modern AI browser.”

Don’t leave the screen reader hungry

What’s visible isn’t always what’s announced.

A guide to Web Guide

What our hybrid search future might look like.

Estimates, a necessary evil?

Why they are vital yet painful to produce.

Introducing Gemini 3 Flash

“It’s made for developers building production applications.”

Color contrast mistakes designers still make

“These accessibility gaps aren’t edge cases.”

HTML forms are badly designed

“A new wave of innovation is needed.”

The State of AI Coding 2025

A study on recent trends in AI software development.

From MVP to MLP

The rise of the Minimum Lovable Product (MLP).

Firefox is adding an AI kill switch

A switch to turn off all AI features.

State of AI vs. human code generation

”AI helps ship faster but produces 1.7× more bugs.”

Google’s spam problem is getting worse

”Spam is back in search. And in a big way.”

Are we still practicing UX?

Or are we just producing interfaces?

Semantics beyond the tag name

What it means to actually write semantic HTML.

Skewed analytics with Speculation Rules

Let third-party scripts trigger only on real visits.

Dialog view transitions

Smooth animations for native HTML dialogs.

Introducing CSS ‘grid-lanes’

The future of masonry layouts on the web.

Useful patterns for building HTML tools

Techniques for making your own tools using AI.

Newsletter lessons I wish I knew

20+ newsletter operators share their experiences.

Ad blockers helped kill the open web

“We failed to innovate monetization.”

“So many people are against AI because they see how it functions as a system for taking away from those with the least, to give even more to the already highly privileged.”

TailwindSQL

”Like TailwindCSS, but for SQL.”

Timing “Hello, World!”

Benchmarking the classic across 20 languages.

Typing SVG Generator

A web tool to create tailored typing animations.

The many lives of the page title

Don’t forget its vital role in user journeys.

The HTML elements time forgot

What got left behind in the march of progress.

Most parked domains are malicious

Over 90 percent now lead to harmful websites.

The slow death of magic

Innovation often means fewer, not more features.

Optimizing for 75% is fine

”Optimizing for 90% is where it gets interesting.”

“When do you really need a system? You need a design system when you start to suffer from its absence.”

New to the web platform (December 2025)

The latest browser features at a glance.

Logging sucks

“Your logs are still acting like it’s 2005.”

For the love of HTML ‘details’

“An untapped treasure trove of interactivity.”

The URL params performance penalty

How a new HTTP header could bypass a cache killer.

Padding for text decorations

How CSS ‘text-decoration-inset’ polishes underlines.

ssh tiny.christmas

Where you can carol with others.

Figma Sites template library

The making of Figma’s 50 website builder templates.

Building my faux lego advent calendar

“It feels like current software development.”

Drawing Truchet tiles in SVG

“These pictures put me in mind of an alien language.”

Lazy-loading optional fonts

Smooth font upgrades with progressive enhancement.

TTFB isn’t what you think

The fallacies behind a popular web performance metric.

Hold the line

Ethical content design in a broken system.

30 years of ‘br’ tags

“It’s a fantastic time to be building for the web.”

Building a website in 2003 and 2023

How’s your website coming along?

Diagonal billing

A clever solution for giving equal credits.

HTML to PNG

Turn HTML into ready-to-use images or PDFs.

Vibium

“Browser automation without the drama.”

Locate

In-browser page search for developers.

The year AI changed design

A transformation is underway, but its outline is still fuzzy.

OWASP Top 10 (2025)

The most critical web application security risks.

Design wrapped 2025

“This year reminded me why I love being a designer.”

2025 LLM year in review

Paradigm changes that stood out this year.

My LLM coding workflow going into 2026

Staying in control while coding with AI.

Web accessibility predictions 2026

“Several trends are already taking shape.”

ES2026 solves JavaScript headaches

“It could be a bumper year for new features.”

In 2026, AI will outwrite humans

What it means when human content gets scarcer.

Visual design trends defining 2026

“2026 marks the rise of ‘imperfect by design.’”

Hide a message in an emoji

Who thought an innocent emoji could smuggle data?

Absurd Website

A showcase of web projects nobody asked for.

firew0rks

Want a firework or fireplace in your terminal?

Happy New Year!

Who said 2026 is only black and white?

Messenger

Ever dreamt of a job delivering mail on a tiny planet?

PolyTrack

Race your custom car on tracks you design.

VoxCSS

A CSS voxel engine that renders HTML cuboids.

Best new icons of 2025

A look at the top news, trends, and icons.

Revisiting HTML streaming

Why it still matters for modern web performance.