code: func (df DomainFilter) Match(domain string) bool {
  	// return always true, if not filter is specified
  	if len(df.filters) == 0 {
  		return true
  	}
  
  	for _, filter := range df.filters {
  		strippedDomain := strings.TrimSuffix(domain, ".")
  
  		if filter == "" {
  			return true
  		} else if strings.HasPrefix(filter, ".") && strings.HasSuffix(strippedDomain, filter) {
  			return true
  		} else if strings.Count(strippedDomain, ".") == strings.Count(filter, ".") {
  			if strippedDomain == filter {
  				return true
  			}
  		} else if strings.HasSuffix(strippedDomain, "."+filter) {
  			return true
  		}
  	}
  
  	return false
  }
docs: // Match checks whether a domain can be found in the DomainFilter.