ちなみに、cache.nsk.ne.jpの風呂敷君3.0の情報を貼ります。

風呂敷確認君 3.00

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Your diagnosis.
HOST NAME : cache.nsk.ne.jp
IP ADDRESS : 219.99.208.63

-- %ENV[Environment variable] --
HTTP_ACCEPT_LANGUAGE : ja
HTTP_CACHE_CONTROL : max-stale=0
HTTP_IF_MODIFIED_SINCE : Fri, 14 Mar 2008 09:32:35 GMT
HTTP_REFERER : http://info.2ch.net/wiki/index.php?%A5%D7%A5%ED%A5%AF%A5%B7%A4%B8%A4%E3%A4%CA%A4%A4%A4%CE%A4%CBPROXY%B5%AC%C0%A9%A4%CB%B0%FA%A4%C3%A4%AB%A4%AB%A4%C3%A4%BF%BE%EC%B9%E7%A4%CE%C2%D0%BD%E8%CB%A1
HTTP_UA_CPU : x86
HTTP_USER_AGENT : Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR 2.0.50727; .NET CLR 1.1.4322; .NET CLR 3.0.04506.30)
HTTP_XROXY_CONNECTION : Keep-Alive
REMOTE_ADDR : 219.99.208.63
REMOTE_HOST : cache.nsk.ne.jp
REMOTE_PORT : 50724
-- DSBL --
219.99.208.63 -> None(^-^)
-- BBQ --
219.99.208.63 -> None(^-^)
-- BBX(Unrelated to the proxies.) --
219.99.208.63 -> None(^-^)
Observation...
今のところ大丈夫ですね♪