Heidi and Spencer may not be a couple any more but the domain name, HeidiAndSpencer.com is still intact....and it's for sale, RadarOnline.com has learned.

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A seller from North Carolina, who apparently owns the domain name, has listed HeidiAndSpencer.com on ebay.

Calling it "The Greatest Domain Name Ever," the seller is asking $21 million and advising those interested to "Bid Hard and Often."

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That suggestion hasn't helped hype interest, however.  As of Sunday afternoon, there were zero bids on the offering.

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But there's still time. The auction closes August 11.

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