Any Alternative for domaintools for checking dropped?

[rajanforums]

I use domaintools to check if a domain has been dropped before. It shows like 1 drops, 2 drops, etc. But I am not sure whether its 100% accurate.

Just want to be sure, that domaintools is always accurate for checking dropped domains? If anyone can suggest me alternative options for checking dropped, please let me know.

thanks in advance
Rajanmr