I'm curious too.

The un-shortened URL is https://ganglia.wikimedia.org/latest/graph.php?r=year&z=xlar...

... just because I have that saved to use on IRC or anywhere else (like twitter) where a very long url would be inconvenient.

(I should've put a disclaimer there: I am one of the WMF engineers involved in the project).

Fyi, if you add a + to the end of any bitly URL, you'll see stats about the link. (Logged in users can set it to private but most times they don't)