using System.Text.RegularExpressions;
public static class Validate
{
public static bool IsDomain(string value)
{
if (string.IsNullOrEmpty(value))
return false;
Regex url = new Regex(@"^[\w\-_]+((\.[\w\-_]+)+([a-z]))?$", RegexOptions.Compiled | RegexOptions.IgnoreCase);
return url.IsMatch(value);
}
}