For physical banks, every piece of stationary from my bank states their domain name so once I have a DV verified showing I'm actually connected to that domain I

For physical banks, every piece of stationary from my bank states their domain name so once I have a DV verified showing I'm actually connected to that domain I can trust it. For online banks, I only got to them online by which automatically means I have their correct domain name. The question of how I get the online bank's domain name to begin with does not really come in to this conversation, can be an ad, a friend etc.