whois profile.hatena.ne.jp/ypxofaz/profile
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Try for webbased whois (don't expect it to work yet)
profile.hatena.ne.jp/ypxofaz/profile
checking....profile.hatena.ne.jp/ypxofaz/profile
$
whois
profile.hatena.ne.jp/ypxofaz/profile
No whois server is known for this kind of object.