def check(domain, prefix, code, strategies='*'):
    if strategies == '*' or 'dns_txt' in strategies:
        if check_dns_txt(domain, prefix, code):
            return True
    if strategies == '*' or 'dns_cname' in strategies:
        if check_dns_cname(domain, prefix, code):
            return True
    if strategies == '*' or 'meta_tag' in strategies:
        if check_meta_tag(domain, prefix, code):
            return True
    if strategies == '*' or 'html_file' in strategies:
        if check_html_file(domain, prefix, code):
            return True
    return False