15.3-M RPS DDOS attacks blocked at Cloudflare

This attack is at the application layer, which is more expensive to launch as the attacker would have to first establish the TLS handshake.

The attack was against a crypto launchpad. 

This attack was launched from a botnet of approximately 6,000 unique bots. It originated from 112 countries around the world. Almost 15% of the attack traffic originated from Indonesia, followed by Russia, Brazil, India, Colombia, and the United States.

https://blog.cloudflare.com/15m-rps-ddos-attack/