Personally, I've found it hard to find much information about pre-HTTP/1.0. To my understanding, "HTTP/0.9" is a retroactive version number. The original HTTP p

Personally, I've found it hard to find much information about pre-HTTP/1.0. To my understanding, "HTTP/0.9" is a retroactive version number. The original HTTP protocol was incredibly simple. An HTTP Request was simply "GET /", then the response was just the content immediately followed by a closed connection. There were no headers. "HTTP/0.9" is used to describe the implementations of "HTTP/1.0" before it was -- for lack of a better word -- 'ratified'. If you, or anyone, has more information or analysis of pre-HTTP/1.0 protocol implementations (client or server), I would be very interested in reading it. Also, if there is a public, pre-HTTP/1.0 HTTP server available on the internet, I would very much like to check it out. Thanks. Edit: Alternatively, if it's possible to run an pre-HTTP/1.0 server (or client), that would be phenomenal. It only occurred to me after making the comment, however I highly doubt that it would be a simple process to get one running. I suspect that I wouldn't be able to spin a Docker container with some ancient version of Apache (I assume due to changes in the Linux environment, shared libraries, changes to gcc, etc.), but possibly, a VM running an equally-ancient version of Red Hat (pre-EL) would do the trick.