HTTP 1.1 includes a header field called Host. Technically, this statement is correct, but don't overlook the fact that while the Host header is optional in HTT

HTTP 1.1 includes a header field called Host. Technically, this statement is correct, but don't overlook the fact that while the Host header is optional in HTTP 1.0, most HTTP 1.0 clients will include it out of necessity. It's nearly impossible to guarantee you'll get the correct resource without a Host header, these days.