During Q3 2021, the average attack size increased by 40% compared to the previous quarter. The largest volumetric DDoS attack recorded by Cloudflare reached a peak of 1 Tbps. This surge was driven by HTTP/2 DDoS attack campaigns. China remained the most targeted country for DDoS attacks, while the US ranked second and Taiwan came in third. Majority of the traffic to China Internet networks were identified as attacks (73%).