Field notes
Blog.
Short, opinionated notes on running edge, security, and observability infrastructure — from the people who do it every day.
Cache key hygiene: the cheapest 40 ms you'll ever ship
Most CDN misses are self-inflicted. A 30-minute audit of your cache key configuration usually pays for itself within a week.
Read →The weekly false-positive review that saves your WAF
Managed WAF rules ship the way vendors ship pants: one size, cinched with a belt. If nobody reviews the false-positive rate, they get turned off — quietly and forever.
Read →Before you buy a cert manager, count your domains
The best certificate automation tool in the world can't renew a cert on a hostname it doesn't know exists. The audit comes first.
Read →