Question

Define. http refer ?
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Answer 1

Answer:

In HTTP, "Referer" (a misspelling of Referrer) is the name of an optional HTTP header field that identifies the address of the web page (i.e., the URI or IRI), which is linked to the resource being requested. By checking the referrer, the server providing the new web page can see where the request originated.

Explanation:

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Answer 2

Answer:

HTTP is hyper text transfer protocol

means is application laser protocol for transmitting hypermedia documents

such as Html(hypertext markup language).It

is designed for communicating web browsers

and web servers but can be also used for other purposes.