Twitter has turned off the functionality to return and display the number of tweets that any unique web page has received.
This change is documented on Twitter's website:
Numerous discussions concerning this change have taken place on Twitter's developer forums with no resolution, including:
Further background information about this issue can be found here:
We, the undersigned, respectfully call upon the CEO of Twitter, Jack Dorsey, to turn back on the Tweet share API functionally:
And to commit to maintaining this functionality going forward.
The #SaveOurShareCounts petition to Jack Dorsey, CEO, Twitter was written by Robert Fine and is in the category Science & Technology at GoPetition.