HTTP headers vs HTTP URLs

Unanswered Question
Oct 15th, 2009

Could someone please explain the very subtle difference between HTTP headers vs HTTP URLs?


I have this problem too.
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ciscocsoc Thu, 10/15/2009 - 23:37


The URL is the resource location with or without additional parameters that will be requested - e.g. or

The HTTP headers on the other hand are additional parameters that are part of the HTTP protocol. They define things like Cookies, the referrer etc. A list of headers can be seen at

It is also possible to add your own headers - usually prefixed with X-.

If you look at the dissection of an HTTP conversation captured by Wireshark you'll see how the headers are used.




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