How do I get the URL of a previous page which is not part of my project?

Question

What I have to do is get the URL of the previous page no matter what, I mean, if it comes from Google for instance, I have to get Google's URL and so forth... Can anybody help me?

I've tried Response.Redirect and also Request, ServerVariables["HTTP_REFERER"], however both of them returns null. I've tried JS as well using document.Referrer, but nothing's working.

Thanks in advance.

score 2 · Answer 1 · edited May 23 '17 at 10:25

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You can check the URL Referrer as explained in this SO post: Getting the HTTP Referrer in ASP.NET

But be aware that there won't always be a referrer. Some people consider this to be a privacy issue, and will set their browsers not to send a referrer header. The only way to know what URL the user came from "no matter what" is to have control over the generation of the URL in the first place and place a unique token on the URL so you can recognize which page the URL was generated for.

edited May 23 '17 at 10:25

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answered Sep 12 '12 at 21:58

StriplingWarrior

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Note that Request.UrlReferrer is checking ServerVariables["HTTP_REFERER"] – scrappedcola Sep 12 '12 at 22:01

score 2 · Answer 2 · edited May 23 '17 at 10:25

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and with javascript / Jquery perhaps document.referrer as explained here

edited May 23 '17 at 10:25

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answered Sep 12 '12 at 22:00

Rob Allen

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How do I get the URL of a previous page which is not part of my project?

2 Answers2