Google currently testing the early adopter program by collobrate with Shipping companies like UPS, FedEx, DHL, and USPS. Also, integrating others tracking data with the search company. By using this user can find the shipping status right from the Google search. Also, you don’t need to leave the search page to see the results. 
Here is how the search results look like?
Regarding this, Google said “Through the package tracking Early Adopters Program, which is available in all countries, shipping companies can sign-up to participate in this feature and give feedback on how to improve it. To take part in the program, a carrier will need to provide a RESTful JSON or XML API that returns the package tracking information. We can work with you to reuse an existing API or setup a new one.” Here is the interest form.
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