This is ok, but I've felt that this information was rough. I've found another site that will provides more detail from www.google.com.
Global Package TrackingI've entered my tracking ID on this site.
The information is almost same, but little detailed. There is the link "Track with official website" in this page, and click it.
I can know that I will receive my item in few days from the comment "third party carrier for final delivery". And two or three days later, I've found local carrier tracking id.
But, this was little late, because I've already received my item when I've found this tracking id.