What complicates matters is that the official HTTP/1.1 guidelines — the RFC — was originally written in 1997.† That’s the year you went surfing the cyberweb in Netscape Navigator on your 33.6kbps modem. It’s a little like trying to apply Sun Tzu’s Art of War to modern business strategy. Timeless advice, to be sure, but I haven’t yet figured out how The Five Ways to Attack With Fire are going to help me do market validation.

Source: Choosing an HTTP Status Code — Stop Making It Hard | Racksburg