Site --> Traffic --> Load Balancing Analytics --> no data


I have a load balancer setup for Active - Passive Failover.
I have 2 pools, primary and secondary. primary is the DNS of cloudflare pages where deployment is deployed and secondary is the DNS running on vercel.

I have setup monitor for health endpoint and I see both of these pools in healthy state.
But somehow I do not see any data in load balancing analytics.

I want to get request data and which request is redirected to primary pool?
how to get all this data.