Recently, Cloudflare experienced one of its largest DDoS attacks in history. The DDoS assault peaked at 2 Tbps and was multi-vector in nature. Cloudflare reassured its consumers that its system is ready to discover and mitigate attacks of this scale.
https://www.notebookcheck.net/Cloudflare-fends-off-a-multi-vector-DDoS-attack.579666.0.html