I am looking to learn how to properly use, and implement, HTTP headers. What is the best resource or set of guidelines that I can use? ( especially ranges to detect download managers, etc) ?
closed as not a real question by MichaelT, GlenH7, gnat, Kilian Foth, BЈовић May 19 at 15:56
It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, see the FAQ.
Well your first stop should probably be RFC2616: Hypertext Transfer Protocol -- HTTP/1.1.