In a turn around that is pretty ironic, Chinas .cn. domain suffered a massive DDoS attack on Sunday. Why is it ironic? Because produces more attack code for denial of service attacks than any other county, according to the latest data from Akamai.

In a statement, the China Internet Network Information Center (CINIC) said that attacks began around midnight Sunday on Chinese time and intensified a few hours later. There was another surge in denial traffic at 4am, but this has now abated and almost all .cn sites were clear of issues by 10am on Sunday morning local time, the government agency said.

"The attackers showed they were capable of knocking the .cn infrastructure offline but that doesn’t mean that they could knock .com infrastructure offline – but it may," according to Matthew Prince, CEO of web apps and monitoring firm CloudFlare.

"Fundamentally in a denial of service attack there's some bottleneck which that the attacker is able to fill with bad traffic, preventing the good traffic from getting through," he said.

China has the largest online population.