using System;

using System.Linq;

public class Program

{

    public static void Main()

    {

        var urls = new [] {"https://dotnetfiddle.net/", "https://dotnetfiddle.net/product/123", "www.logos.com", "vyrso.com", "https://www.logos.com/product/40482/davids-truth-in-israels-imagination-and-memory"};

        foreach (var url in urls) {

            Console.WriteLine("{0} {1}", ShouldCreateBulletin(url), url);

        }

    }

    private static bool ShouldCreateBulletin(string url) {

        // bulletin should only be created for logos.com or vyrso.com links

        Uri pageUri;

        if (!Uri.TryCreate(url, UriKind.Absolute, out pageUri))

            return false;

        if (!((pageUri.Host.ToLower() == "www.logos.com" || pageUri.Host.ToLower() == "vyrso.com") && pageUri.Segments.Any(s => s == "product/")))

            return false;

        return true;

    }

}