Go to
http://search.yahoo.com and type the keyword and check the ranking manually. For a easy way you can set the preferences for showing the results like 10, 50 or 100 results per page. Just choose 100 results per page and set the preferences. Press Ctrl+F and type your url and search within 100 results. For search within 1000 results go to 1-10 pages and do the same.
There are many tools on the web for chek the ranking but it is not necessary that the tool will provide you 100% accurate result. Those tools will send you near accurate results but for 100% accurate result you must check it manually.
A nice tool which I use for get the near results is
http://www.searchenginegenie.com/yah...k-checker.html -- This message may have been cut off and the rest will only be shown to members. To become a member, click here --