performance

3 articles · newest first

Photographic wide shot of a dark, hazy data-center hall, rows of server racks lit only by small green and red indicator lights, conveying large scale

It worked with ten users. Then a hundred showed up at once.

What happens to a vibe-coded app when it suddenly gets popular, the two ways to handle it, and why "works for ten" isn't "works for ten thousand". Tap to add users.

Syntax · 6d ago · 4 min

Editorial infographic contrasting a slow first request that computes an answer with a fast repeat request served instantly from a labelled cache box

Build

You fixed the typo. Visitors still see the old version. Here's why.

A cache keeps a ready-made copy so pages load instantly — most of the web's speed, and the classic bug where old data won't go away. What its lifetime (TTL) controls.

Syntax · 6d ago · 4 min

Realistic painterly illustration of a lone courier racing along a very long winding road at dusk, a distant city glowing far ahead

BuildInteractive

Your app is fast for you and slow for everyone else — the reason is geography

Latency is the wait between a request and its answer, and distance is the biggest cause. Why far-away users feel the lag, and the one thing that fixes most of it. Tap the ladder.

Syntax · 6d ago · 4 min