Ovt tool isn't dead. It is just slow and very often timed out. My program to query ovt values still works, but with many more times of retries.
All the other sites online that seem to work is because they retry the submission multiple times. And probably also because they are not in the US or querying from overture.com from a less busy server.
I haven't try it, but if I use proxy to query overture to check ovt, I will probably have a better chance to get result back.
Just to confirm, those who can get ovt values from any other websites, can you please tell me where you are located? Thanks.
Kawing