Learn

Your app feels slow somewhere in the world.

These articles help you figure out where, why, and what to do about it.

Learn5 min read

How to test your API latency from multiple regions without setting up infrastructure

Your laptop says the API is fast. Your users on the other side of the world are telling you something else.

A practical guide to checking API latency from several regions, understanding what the numbers mean, and turning that into an infrastructure decision.

Published April 3, 2026Read article→

Learn4 min read

TTFB: the number that determines whether Google can rank your site

You've probably never measured it. It's probably the biggest performance problem you have.

Time to First Byte controls when rendering can begin, which is why it quietly drags down LCP, Core Web Vitals, and search performance.

Published March 19, 2026Read article→

Learn4 min read

Google Fonts or self-hosted? It depends on one thing.

The answer used to be simple. It isn't anymore.

The Google Fonts answer changed after shared browser caches disappeared. The real decision now is where your server lives.

Published March 19, 2026Read article→