returnruleBuilder.SetValidator(newRegularExpressionValidator("^http(s)?://",RegexOptions.IgnoreCase)).WithMessage("must start with http:// or https://");
returnruleBuilder.SetValidator(newRegularExpressionValidator("^https?://",RegexOptions.IgnoreCase)).WithMessage("must start with http:// or https://");
returnruleBuilder.SetValidator(newRegularExpressionValidator("^[-a-z0-9.]+$",RegexOptions.IgnoreCase)).WithMessage("must be valid Host without http://");
returnruleBuilder.SetValidator(newRegularExpressionValidator("^http(?:s)?://[a-z0-9-.]+",RegexOptions.IgnoreCase)).WithMessage("must be valid URL that");
returnruleBuilder.SetValidator(newRegularExpressionValidator("^https?://[-a-z0-9.]+",RegexOptions.IgnoreCase)).WithMessage("must be valid URL that starts with http(s)://");