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I'm putting a banner ad in a newsletter. I want to be able to track hits from that ad. To do so, I need the ad to direct to a unique URL, but I don't want the URL to be deceptive (ie. a URL).

Is there a tag or something else I can attach to my URL to make it unique & trackable?

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Use a GUID. Many mailing list managers - eg phplist - will do it for you. The url will look like

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Instead of a plain guid, I'd recommend base64 encoding the guid. For example: – NotMe Oct 7 '11 at 15:46

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