How does Netlify knows which site to route to if using A record point to load balancers?

Hello!

For any Forums members who encounter this thread, as of March 25, 2021 we have changed our load balancer to 75.2.60.5 . Should you be following this post for guidance, please use this moving forward. We want to make sure you have the most up to date information! Please see our Docs, this Support Guide, and our Status Page from March 25th for details.

Best,
Hillary