Engineering Insights

From the Code43 blog.

Technical deep-dives on web infrastructure, AI integration, and the decisions that shape production software.

Web HostingDeploymentWeb Fundamentals

You Built It. Now Host It.

Your site works on localhost. Here's how to get it live on the internet, from managed platforms for vibe coders to VPS for full control.

7 min read
AIInternationalizationWeb Development

Your LLM Speaks Dozens of Languages. You Just Never Asked.

Full i18n is the right answer eventually. But when the actual problem is AI-generated content defaulting to English, the fix turns out to be much smaller.

5 min read
AISpam DetectionWeb Development

Adding AI to Your Website (Without the Hype)

Where AI actually helps on a website, where it doesn't, and how we built a three-layer spam detection system that uses an LLM as a last resort.

8 min read
CDNInfrastructureWeb Fundamentals

CDNs Explained: Why Your Site Needs One

What a CDN is, how it works, and why it's one of the simplest ways to make your site faster and more reliable.

6 min read
Website BuildersSite MigrationsWeb Fundamentals

Website Builders: The Good, The Bad, and The Ugly

When website builders make sense, where they fall short, and how to know when it's time to move on.

7 min read
SEOSearch EnginesWeb Fundamentals

SEO Explained: How Search Engines Find and Rank Your Content

What SEO is, how search engines actually work, and why it matters for anyone with a web presence.

6 min read
DNSInfrastructureWeb Fundamentals

DNS Explained: The Internet's Phone Book

What DNS is, how it works, its history, and why anyone with a web presence should understand it.

5 min read