1. watchA
余計なADDITIONAL を返すサービス
2. whois
[Domain Name] 7DAYS.JP [Registrant] 7days lnc. [Name Server] ns2.cyberpress.jp [Name Server] vs1.cyberpress.jp [Signing Key] [Created on] 2001/03/26 [Expires on] 2021/03/31 [Status] Active [Last Updated] 2020/04/01 01:05:09 (JST)
3. history
$ dig -t ns 7days.jp @ns2.cyberpress.jp ; <<>> DiG 9.11.3-1ubuntu1.11-Ubuntu <<>> -t ns 7days.jp @ns2.cyberpress.jp ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 46354 ;; flags: qr aa rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 3 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ;; QUESTION SECTION: ;7days.jp. IN NS ;; ANSWER SECTION: 7days.jp. 86400 IN NS vps3.press.ne.jp. 7days.jp. 86400 IN NS ns2.cyberpress.jp. ;; ADDITIONAL SECTION: ns2.cyberpress.jp. 86400 IN A 210.143.110.5 vps3.press.ne.jp. 1200 IN A 153.126.159.112 ;; Query time: 19 msec ;; SERVER: 210.143.110.5#53(210.143.110.5) ;; WHEN: Mon Jun 22 14:12:14 JST 2020 ;; MSG SIZE rcvd: 126