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Determining if a url exists

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Determining if a url exists

Subject: Determining if a url exists
From: Matthew Delves <email@hidden>
Date: Thu, 7 Feb 2008 16:47:04 +1100

An app that I'm writing involves fetching of rss feeds. To get around caching I have been appending ?20080207 (or whatever the current date is) to the URL. Unfortunately some server's don't like this and will return a 404. Is there a way using cocoa to determine if a URL will return a 404?

Any tutorials or howtos will be of great help and appreciated.

Thanks,
Matthew Delves
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