/k3 (amateur level)
   /usage: g=f k 2 where f is list of hostnames, e.g. all hostnames referenced in a page of html
   /usage example: g=1.txt k 2|exec openssl s_client -tls1_2 -no_ssl2 -no_ssl3 -ign_eof -no_ticket -connect cloudflare-dns.com:443 -tlsextdebug -verify 9 > 1.json
   a:"GET /dns-query?ct=application/dns-json&name=";b:0:_getenv "g";cde:"&type=1 HTTP/1.1\r\nHost: cloudflare-dns.com\r\nConnection: ";f:"keep-alive";g:"close";h:"\r\n\r\n"; i:(#b)-1;`0:{,/$(a,b[x],cde,f,h)}'!i;`0:,/$(a,b[i],cde,g,h)