Tweet button counter not showed - count.json get's 404 - not found


I have recently seen that the Twitter coutner doesn’t show up on my last project I’ve recently launched (
Checked console, and found that the count.json API for the link (accessed by the Tweet button, nothing else), get’s bumped into a 404 wall.

Checked other websites as well, thought that maybe something stupid of me (implemented SSL cert recently), but I see that everywhere’s the same.
Including (some random website for test) -> same result (no counter for twitter, same 404 in console for count.json).

Is there some general issue ?