fetch some data from cryptsy's public api and have a look at the "lasttradetime".
last update: 2015-12-04...
 
I have checked a few markets so far. It's all down...

e.g.: Market 2 (BTC/USD):

http://oi64.tinypic.com/2dhtoc1.jpg

The URL is: http://pubapi2.cryptsy.com/api.php?method=singlemarketdata&marketid=2