if you got cloudflare its probably a layer 7 attack or they got your backend ip
Enable under attack mode
Webmaster Security
Website Currently under DoS Attack
Submitted by Strange Leader, 12-02-2016, 06:58 PM, Thread ID: 18186
Thread Closed
RE: Website Currently under DoS Attack 12-02-2016, 07:04 PM #2
12-02-2016, 07:04 PM
#2