I would like to have two Cookie Providers in a environment, so when our Agents are accessed, they will check provider1.domain.com and then provider2.domain.com for active session. Is that possible?

Web Agent R12.52 SP1

Multiple cookie providers cannot be configured in the same environment, however if your Agents are protecting different applications, you could evaluate if setting different security zones with their own cookie providers would match your needs. Check Additional Information section below for links to documentation.

https://docops.ca.com/ca-single-sign-on/12-52-sp1/en/configuring/web-agent-configuration/single-sign-on-cookie-domains-and-web-agents/configure-web-agent-single-sign-on-settings
https://docops.ca.com/ca-single-sign-on/12-52-sp1/en/configuring/web-agent-configuration/security-zones-for-single-sign-on