> Sometimes is enough one bad actor under one of your subdomains to have a full ban on the whole domain.
If you're running independent subdomains where a bad actor on one should not affect the reputation of the rest, you probably should add your domain to the public suffix list: https://publicsuffix.org
If you're running independent subdomains where a bad actor on one should not affect the reputation of the rest, you probably should add your domain to the public suffix list: https://publicsuffix.org