3 min read
Virtual queues, bot walls, and why we stop at them
Some award pages refuse automated visitors outright; others admit everyone through a waiting room built for humans. Both are answers, and we treat them as answers.
Field notes
Engineering
The machinery that keeps a search product honest: versioned parsers, replay corpora, and the walls we stop at rather than route around.
All field notes
3 min read
How we read an airline's answer without changing it
The engineering that keeps a search product honest: versioned parsers, schema fingerprints, and a test suite that replays every response we have ever trusted.