1. watchA
A, MX なし。NXDOMAIN 返答 このcloudflare DNS サーバーの動作は明らかにおかしい。
SOA, NS あり
https://cub-7.com https://www.cub-7.com
2. whois
Domain Name: CUB-7.COM Registry Domain ID: 1603908954_DOMAIN_COM-VRSN Registrar WHOIS Server: whois.namesilo.com Registrar URL: http://www.namesilo.com Updated Date: 2021-06-19T15:23:13Z Creation Date: 2010-06-27T03:43:18Z Registry Expiry Date: 2022-06-27T03:43:18Z Registrar: NameSilo, LLC Registrar IANA ID: 1479 Registrar Abuse Contact Email: abuse@namesilo.com Registrar Abuse Contact Phone: +1.4805240066 Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited Name Server: FIONA.NS.CLOUDFLARE.COM Name Server: MATT.NS.CLOUDFLARE.COM DNSSEC: unsigned URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/ >>> Last update of whois database: 2021-10-29T06:54:14Z <<<
3. history
$ dig -t soa cub-7.com @matt.ns.cloudflare.com ; <<>> DiG 9.16.1-Ubuntu <<>> -t soa cub-7.com @matt.ns.cloudflare.com ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 28243 ;; flags: qr aa rd; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1 ;; WARNING: recursion requested but not available ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 1232 ;; QUESTION SECTION: ;cub-7.com. IN SOA ;; ANSWER SECTION: cub-7.com. 3600 IN SOA fiona.ns.cloudflare.com. dns.cloudflare.com. 2038063785 10000 2400 604800 3600 ;; Query time: 4 msec ;; SERVER: 108.162.193.131#53(108.162.193.131) ;; WHEN: 火 11月 02 10:15:39 JST 2021 ;; MSG SIZE rcvd: 98
4. NXDOMAIN
$ dig -t a cub-7.com @fiona.ns.cloudflare.com ; <<>> DiG 9.16.1-Ubuntu <<>> -t a cub-7.com @fiona.ns.cloudflare.com ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 48918 ;; flags: qr aa rd; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1
www.cub-7.com. 300 IN CNAME vultr.baipan.me.