Knowledge base / field notes

Notes on the digital world.

Short, substantial articles about the technologies that power the web every day. Start wherever you like.

Follow a DNS lookup, understand A and CNAME records, and see why TTL matters when things change.

Learn what happens during a secure connection, why certificate names matter, and how to avoid common errors.

Explore static asset caching, sources of latency, and when edge delivery really makes a difference.