Why is Yahoo! Slurp requesting /1338.aspx?

Question

Ip: 67.195.112.247 
Mozilla/5.0 (compatible; Yahoo! Slurp/3.0; http://help.yahoo.com/help/us/ysearch/slurp) 

System.Web.HttpException: The file '/1338.aspx' does not exist.

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IP : 67.195.112.247
Host : b3091104.crawl.yahoo.net
Country: United States

Answer 1

Try searching on the open web for "http://yoururl/1138.aspx" , someone may have created this link and yahoo is trying to follow it.