ASP.NET UrlReferrer

I have an ASP.Net application which generates shor开发者_如何学JAVAt url for sharing. I want to track the url from where (source) click occured when it hits my asp.net page. I tried using Context.Request.UrlReferrer.AbsoluteUri but all I get from it is null.

Any ideas?

TIA

Don't forget that the referrer will sometimes be null for things like search engines, or people behind corporate firewalls that remove some HTTP headers.

Not quite as clean, but you could use Request.Headers["Referer"]. Should be the same as using Context.Request, but I've found the behavior to be different.