<PackageReference Include="Azure.Storage.Files.DataLake" Version="12.22.0" />

Azure.Storage.Files.DataLake.Models.DataLakeStaticWebsite

public class DataLakeStaticWebsite
The properties that enable an account to host a static website.
public string DefaultIndexDocumentPath { get; set; }

Absolute path of the default index page.

public bool Enabled { get; set; }

Indicates whether this account is hosting a static website.

public string ErrorDocument404Path { get; set; }

The absolute path of the custom 404 page.

public string IndexDocument { get; set; }

The default name of the index page under each directory.