Top level domain from URL in C#

Question

I am using C# and ASP.NET for this.

We receive a lot of \"strange\" requests on our IIS 6.0 servers and I want to log and catalog these by domain.

Eg. we get

Answer 1

You can use the following nuget Nager.PublicSuffix package. It uses the same data source that browser vendors use.

nuget

PM> Install-Package Nager.PublicSuffix

Example

var domainParser = new DomainParser(new WebTldRuleProvider());

var domainName = domainParser.Get("sub.test.co.uk");
//domainName.Domain = "test";
//domainName.Hostname = "sub.test.co.uk";
//domainName.RegistrableDomain = "test.co.uk";
//domainName.SubDomain = "sub";
//domainName.TLD = "co.uk";