Recently I was investigating an outage on a client website where a large spike in traffic generating a 404 response was at play. Reviewing the requests in detail, I noticed that the same URLs were being hit repeatedly within a short time frame, however the responses never came from cache. This lead me to the question…why wouldn’t a 404 response be served from cache? I reached out to Adobe support and learned a few things. In this post I will share my findings.
