[pm90]

I don’t believe GCP has such a service explicitly, although in 2 years of using them I’ve never seen any DDoS like behavior despite having multiple public endpoints. I am assuming there is some kind of automatic remediation that happens, or else I’ve just been extremely lucky.

[dward]

https://cloud.google.com/armor/

GCP Network has built in DoS mitigation as well (e.g. in the load balancing layer) so you get some protection from that for free.

[mekster]

DDoS isn't free from the attacker as well, unless your service means something to competitor or someone, why would you get one?