How Can I Reliably Capture the HTTP Referrer in ASP.NET?

HTTP Referrer Capture in ASP.NET: A Reliable Method

In ASP.NET applications, acquiring the HTTP Referrer, although known to be inherently untrustworthy, can be valuable information in certain instances. This article introduces a dependable approach to retrieving the referrer when it exists.

Utilizing the Request.UrlReferrer Property

To obtain the browser's HTTP Referrer, leverage the UrlReferrer property of the current request:

Request.UrlReferrer

This property accesses the Referer HTTP header from the incoming request. Note that browsers have the discretion to supply or withhold this information.

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