Getting domains list for node programmatically in Umbraco CMS
Once you define hostnames for a Content node in Umbraco CMS in the back office - it's easy to get the list in C# within a few lines of code.
Cultures and hostnames for Umbraco node
To do so you should use the domain service (IDomainService) and grab the domain service instance.
private readonly IDomainService _domainService;
You can get service instance using static service locator as follows:
_domainService = Current.Factory.GetInstance<IDomainService>();
The domain service has a very easy-to-use method named GetAssignedDomains that returns a list of domains for a given node id.
var domains = _domainService.GetAssignedDomains(1501, includeWildcards: true);
Domains list for umbraco node
Domains list for umbraco node - immediate window