Well one hopes they at least have implemented adequate anti-DDoS protection. They could've purchased it from Baidu Jaisule with bitcoin! 
The error we see is from Incapsula, which SHOULD protect against DDoS! http://www.incapsula.com/ It looks like it's really the servers; or could the attachers have bypassed the CDN?
Looks like another mega-flood of crap... Hence the connection times out... If they are not under ddos that would mean that incapsula is doing a very bad job cos w/o beeing attacked how can a CDN company fail from several parts of the globe?