http - How do (evil) bots know about my domain and subdomains?

Question

When I check my logs I see bots trying to access subdomains that should not be referenced anywhere in the net. How do they know about my domains and subdomains and what is the root source?

question from:https://stackoverflow.com/questions/65916395/how-do-evil-bots-know-about-my-domain-and-subdomains

Answer 1

Waitting for answers