ccTLD/il/co.ilについて、ここに記述してください。
ilと同居？
$ dig -t ns co.il @ns1.ns.il
; <<>> DiG 9.11.0-P3 <<>> -t ns co.il @ns1.ns.il ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 19878 ;; flags: qr aa rd; QUERY: 1, ANSWER: 9, AUTHORITY: 0, ADDITIONAL: 10 ;; WARNING: recursion requested but not available ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ;; QUESTION SECTION: ;co.il. IN NS ;; ANSWER SECTION: co.il. 86400 IN NS nsb.ns.il. co.il. 86400 IN NS ns1.ns.il. co.il. 86400 IN NS nsg.ns.il. co.il. 86400 IN NS ilns.ilan.net.il. co.il. 86400 IN NS ns2.ns.il. co.il. 86400 IN NS nsa.ns.il. co.il. 86400 IN NS lookup.iucc.ac.il. co.il. 86400 IN NS nse.ns.il. co.il. 86400 IN NS sns-pb.isc.org. ;; ADDITIONAL SECTION: ns1.ns.il. 86400 IN A 194.146.106.122 ns1.ns.il. 86400 IN AAAA 2001:67c:1010:31::53 ns2.ns.il. 86400 IN A 162.88.57.1 ns2.ns.il. 86400 IN AAAA 2600:2000:3005::1 nsa.ns.il. 86400 IN A 192.115.7.53 nsb.ns.il. 86400 IN A 192.115.7.60 nse.ns.il. 86400 IN A 192.115.141.253 nsg.ns.il. 86400 IN A 81.91.161.212 nsg.ns.il. 86400 IN AAAA 2a02:568:ffff:8::53 ;; Query time: 10 msec ;; SERVER: 194.146.106.122#53(194.146.106.122) ;; WHEN: Fri Apr 07 15:32:21 JST 2017 ;; MSG SIZE rcvd: 410