トップレベルドメインが .site なのは仕様なんですかね?
WHOISの情報も所詮でたらめで、連絡先のメールアドレスもYahooのフリーメールアドレスだったりするんでしょ? とおもむろに検索してみましょう。
Domain Name: QBQZTUV5XLU2.SITE
Registry Domain ID: D54607758-CNIC
Registrar WHOIS Server: whois.discount-domain.com
Registrar URL: http://www.onamae.com
Creation Date: 2017-10-27T02:37:03.0Z
Registry Expiry Date: 2018-10-27T23:59:59.0Z
Registrar: GMO
Registrar IANA ID: 49
Domain Status: serverTransferProhibited https://icann.org/epp#serverTransferProhibited
Registry Registrant ID: C156183528-CNIC
Registrant Name: tomomi sakano
Registrant Organization: Personal
Registrant Street: 6-8-4 Akasaka-chou
Registrant City: Sano-shi
Registrant State/Province: Tochigi
Registrant Postal Code: 327-0004
Registrant Country: JP
Registrant Phone: +81.283402881
Registrant Fax: +81.283402881
Registrant Email: rozibaku@ahk.jp
Registry Admin ID: C156183558-CNIC
Admin Name: tomomi sakano
Admin Organization: Personal
Admin Street: 6-8-4 Akasaka-chou
Admin City: Sano-shi
Admin State/Province: Tochigi
Admin Postal Code: 327-0004
Admin Country: JP
Admin Phone: +81.283402881
Admin Fax: +81.283402881
Admin Email: rozibaku@ahk.jp
Registry Tech ID: C156183583-CNIC
Tech Name: tomomi sakano
Tech Organization: Personal
Tech Street: 6-8-4 Akasaka-chou
Tech City: Sano-shi
Tech State/Province: Tochigi
Tech Postal Code: 327-0004
Tech Country: JP
Tech Phone: +81.283402881
Tech Fax: +81.283402881
Tech Email: rozibaku@ahk.jp
Name Server: NS11.VALUE-DOMAIN.COM
Name Server: NS12.VALUE-DOMAIN.COM
Name Server: NS13.VALUE-DOMAIN.COM
DNSSEC: unsigned
Registry Billing ID: C156183613-CNIC
Billing Name: tomomi sakano
Billing Organization: Personal
Billing Street: 6-8-4 Akasaka-chou
Billing City: Sano-shi
Billing State/Province: Tochigi
Billing Postal Code: 327-0004
Billing Country: JP
Billing Phone: +81.283402881
Billing Fax: +81.283402881
Billing Email: rozibaku@ahk.jp
Registrar Abuse Contact Email: abuse@gmo.jp
Registrar Abuse Contact Phone: +81.337709199
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of WHOIS database: 2017-11-07T04:41:25.0Z <<<For more information on Whois status codes, please visit https://icann.org/epp
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今回はYahooのメールアドレスではなかったようですけど、フリーメールアドレスであることだけは確かです。
坂野 ともみ さんって実在するんですかねぇ?