First off it uses HTTP/1.1 pipelining. There's not a single actively developed browser in existance that supports HTTP/1.1 pipelining out of the box. [1] Thus you certainly can't use this for web development.

Secondly, the post doesn't seem to mention this but I'm willing to bet that this microbenchmark, like all others like this, are doing all these million requests from a single client that's located on the same machine.

How many real world use cases are there where a single localhost client will do a million requests per second and also supports HTTP/1.1 pipelining?

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[1] https://en.wikipedia.org/wiki/HTTP_pipelining#Implementation...