Performance

CSS containment lets you isolate layout and paint work to self-contained ‘islands’. Here’s what each contain value does and how to use it safely.

Every layer of abstraction made in the browser moves you further from the platform, ties you further into framework lock-in, and moves you further away from fast. By using progressive enhancement, you can opt into browser-native features that are usually faster, more accessible, more secure, and—perhaps most importantly to the business—maintained by someone else. The beauty of opting into web platform features as they become available is that your site becomes contextual. The same codebase adapts into its environment, playing to its strengths, rather than trying to build and ship your own environment from the ground up. Meet your users where they are.

Why on earth would you make something render-blocking?!

Many programming "best practices" taught today are performance disasters waiting to happen.

A step-by-step guide to building a key-value database from scratch.

Your service is humming along at 2,000 requests per second with beautiful 50ms p99 latency.

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How high TTFB kills application responsiveness and some ideas to fix it you probably didn't know about

Discover how Infobip's infrastructure, which handles over 10 billion daily messages, evolved through a decade of challenges and innovation.

TypeScript is a superset of JavaScript that compiles to clean JavaScript output. - microsoft/TypeScript

How a viral URL lengthener racked up 1M+ Vercel Edge Requests in days. A deep dive into unique URLs, caching pitfalls, interstitial pages, and how small multipliers explode costs under virality.

Strategies for Graceful Degradation in Large Scale Distributed Systems

Making programs slower can be useful to find...

The new `size-adjust` and font metric overrides allow developers to create font fallbacks that closely match web fonts. This reduces layout shifts.

A very common side effect of working as a programmer is the constant frustration of not having source code access to all the software you use. Bugs, problems or missing features in your own work ca…

Every PostgreSQL backend process eats ~10 MB of RAM and can block autovacuum if it idles “in transaction.” Connection storms turn fast servers into sludge. PgBouncer, a tiny TCP proxy, multiplexes…

The multi-threaded frontend framework for ultra-fast, desktop-like enterprise web applications - neomjs/neo

A practical and experience-backed guide to designing scalable architecture for enterprise-grade SaaS applications.

Both stories are true. Scaling still works. OpenAI et al. still have oversold their promises.

This article is the battle-tested schema playbook for building apps that don't fall apart in the field. Do you have to do it this way? No, you can do it however you want and create technical debt…

Learn how Bunny Shield’s global rate limiting stops modern threats with real-time, edge-wide enforcement—keeping your services fast, secure, and resilient.

I guess everyone who’s been in the programming world long enough has heard about this data structure at least once. Hash tables excel when you need rapid lookups, quick inserts, and fast deletions…

Compare the pros and cons of various caching strategies to choose the best one for your use case.

Dynamic content delivery with a CDN. Amazon CloudFront is a fast content delivery network (CDN) service that securely delivers data, videos, applications, and APIs to customers globally with low latency, high transfer speeds, all within a developer friendly environment.

Create a sticky session, also known as session affinity, to bind a user's session to a specific application.

By leveraging the principles of Isolation and Redundancy we’ve made our architecture more resilient to widespread outages.