Blog

Site is OK? — notes on web security, mail delivering magic, uptime, and all about running this service

"All you can eat scan? No, we read 256 KB of your page, and we are full"

Every fetch in a scan has a byte cap -- not just on what we store, but on what crosses the wire. Read here why caps exist, why they don't break the checks, and what a truncated body honestly means for the verdict. Read →

The favicon check took three tries to be honest

Sneak peek into the dev process. Checking "does this site have a favicon" sounds trivial, until error pages pretending to be icons, SVG files that look like markup, and a browser convention from 1999 get involved. Read →

Eat your own dogfood

Eat your own dogfood, they said. Mmm, tasty! Read →

What a domain health check actually measures

A health score is only useful if you know what went into it — here's what our scan measures, what it deliberately doesn't, and why. Read →