UrlReferrer Is Always NULL?

Apr 29, 2010

Here's the scenario, we've built a url shortener (that we use only to shorten urls for Twitter to our website), and we also track the number of times a url has been clicked. So, for example.. the url might be something like "http://ourshortdomain.com/x9Mr"

Now, in many cases, we see as many as 1000 or 2000 clicks per shortened url, but the referrer is almost always null. How can this be, if the only place we're handing out that shortened url is on Twitter? Shouldn't all the url referrers be coming from Twitter?...

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