using static System.Console;
public class Program {
public static void Main() {
var url = "http://a...content-available-to-author-only...c.com";
var posicao = url.IndexOf(':');
if (posicao < 0) return; //aqui você trata como quiser se não achar a string
WriteLine(url.Substring(posicao));
}
}
//https://pt.stackoverflow.com/q/359110/101
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