whois ameblo.jp/natmari6117/entry-12843980729.html/

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Try for webbased whois (don't expect it to work yet)
ameblo.jp/natmari6117/entry-12843980729.html/
checking....ameblo.jp/natmari6117/entry-12843980729.html/
   $ whois ameblo.jp/natmari6117/entry-12843980729.html/
No whois server is known for this kind of object.