This library is a WHOIS protocol client used to search owner information by IP address or domain name. This library determines the WHOIS server automatically and queries the referral server recursively. The response of the whois query contains strongly typed values, and the raw output.
Get Started
$ dotnet add package WhoisClient.NETReadme
WhoisClient.NET 
Project Description
This is a .NET Class library implementing a WHOIS client.
How to install
To install this library into your application, use the NuGet repository.
dotnet add package WhoisClient.NET
Sample source code (C#)
Async version
using Whois.NET;
...
private async Task QueryByIPAddress()
{
var result = await WhoisClient.QueryAsync("8.8.8.8", new WhoisQueryOptions());
Console.WriteLine("{0} - {1}", result.AddressRange.Begin, result.AddressRange.End); // "8.8.8.0 - 8.8.8.255"
Console.WriteLine("{0}", result.OrganizationName); // "Google Inc. LVLT-GOGL-8-8-8 (NET-8-8-8-0-1)"
Console.WriteLine(string.Join(" > ", result.RespondedServers)); // "whois.iana.org > whois.arin.net"
}
private async Task QueryByDomain()
{
var result = await WhoisClient.QueryAsync("google.com", new WhoisQueryOptions());
Console.WriteLine("{0}", result.OrganizationName); // "Google Inc."
Console.WriteLine(string.Join(" > ", result.RespondedServers)); // "whois.iana.org > whois.verisign-grs.com > whois.markmonitor.com"
}
Sync version
using Whois.NET;
...
private void QueryByIPAddress()
{
var result = WhoisClient.Query("8.8.8.8", new WhoisQueryOptions());
Console.WriteLine("{0} - {1}", result.AddressRange.Begin, result.AddressRange.End); // "8.8.8.0 - 8.8.8.255"
Console.WriteLine("{0}", result.OrganizationName); // "Google Inc. LVLT-GOGL-8-8-8 (NET-8-8-8-0-1)"
Console.WriteLine(string.Join(" > ", result.RespondedServers)); // "whois.iana.org > whois.arin.net"
}
private async void QueryByDomain()
{
var result = WhoisClient.Query("google.com", new WhoisQueryOptions());
Console.WriteLine("{0}", result.OrganizationName); // "Google Inc."
Console.WriteLine(string.Join(" > ", result.RespondedServers)); // "whois.iana.org > whois.verisign-grs.com > whois.markmonitor.com"
}