I have an IIS 10 server with sites for about 10 domains. For my first site, I created a CSR within IIS, then used that to generate an Origin certificate in Cloudflare. I was then able to bind that new certificate to the site in IIS and turn on “Full (strict)” mode successfully.
For the remaining 9 sites, do I create a separate CSR for each or can I use the original CSR to generate an Origin certificate for each site? Or is there a better way to generate an Origin certificate for 10 sites on the same IIS server?