func (df DomainFilter) IsConfigured() bool {
	if len(df.filters) == 1 {
		return df.filters[0] != ""
	}
	return len(df.filters) > 0
}
func (df DomainFilter) IsConfigured() bool {
	if len(df.filters) == 1 {
		return df.filters[0] != ""
	}
	return len(df.filters) > 0
}
// IsConfigured returns true if DomainFilter is configured, false otherwise