Does the DNS service support weighted polling?

[ShaoBing]

Excuse me!
When domain name A records are resolved to multiple IP addresses at the same time, is there a weighting function?

For example:
Record 1: www -> 127.0.0.1
Record 2: www -> 127.0.0.2
Record 3: www -> 127.0.0.3

127.0.0.1 has a weight of 30
127.0.0.2 has a weight of 10
127.0.0.3 has a weight of 60

When there is a DNS query request for www,
30% chance of resolving to 127.0.0.1,
10% chance of resolving to 127.0.0.2,
60% chance of resolving to 127.0.0.3

May I ask, does your company’s DNS have this function?

[VannGuce]

I believe in Cloud DNS that is the same as WRR (Weighted Round Robin) when traffic is distributed according to the configured weights To know more about WRR you can check this link[1] and for the configuration of the WRR routing policy you may rely on this documentation[2]

[1]https://cloud.google.com/dns/docs/policies-overview#wrr-policy
[2]https://cloud.google.com/dns/docs/zones/manage-routing-policies#create-wrr-geo-policy