Note:- We will not be supporting any query for Joomla 1.5 component henceforth.
I am sorry for that. I will try to come to your expectations in regards this tool but can you please let me know which websites you were checking when you didn't get the expected results. As I have checked many domains without any issues. Also did you check the same domain in our site http://www.joomlaseo.org. As some functions may not be supported by your host providers. You can post your problems in our forum first so that if any issue is there we can help you out.