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	<title>Comments on: 针对baidu蜘蛛HEAD指令对动态网页优化的建议</title>
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	<link>http://www.xiaojb.com/archives/it/baidu-spider-head.shtml</link>
	<description>奋斗无止境 爱拼才会赢</description>
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		<title>By: 签名</title>
		<link>http://www.xiaojb.com/archives/it/baidu-spider-head.shtml#comment-5207</link>
		<dc:creator>签名</dc:creator>
		<pubDate>Wed, 16 Jul 2008 15:22:10 +0000</pubDate>
		<guid isPermaLink="false">http://www.xiaojb.com/archives/it/baidu-spider-head.shtml#comment-5207</guid>
		<description>我是新手,对DISCUZ的优化属于文盲,请问在HEAD中,哪些代码可以删除利于优化呢?</description>
		<content:encoded><![CDATA[<p>我是新手,对DISCUZ的优化属于文盲,请问在HEAD中,哪些代码可以删除利于优化呢?</p>
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	<item>
		<title>By: xjb</title>
		<link>http://www.xiaojb.com/archives/it/baidu-spider-head.shtml#comment-5137</link>
		<dc:creator>xjb</dc:creator>
		<pubDate>Mon, 14 Apr 2008 01:41:07 +0000</pubDate>
		<guid isPermaLink="false">http://www.xiaojb.com/archives/it/baidu-spider-head.shtml#comment-5137</guid>
		<description>Content-Length 标记是否更新并不准确把。</description>
		<content:encoded><![CDATA[<p>Content-Length 标记是否更新并不准确把。</p>
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		<title>By: xinbin</title>
		<link>http://www.xiaojb.com/archives/it/baidu-spider-head.shtml#comment-5131</link>
		<dc:creator>xinbin</dc:creator>
		<pubDate>Sat, 12 Apr 2008 03:53:20 +0000</pubDate>
		<guid isPermaLink="false">http://www.xiaojb.com/archives/it/baidu-spider-head.shtml#comment-5131</guid>
		<description>除了last-modifed, etag，baidu还关注一个字段 content-length.。 道理也显而易见，如果网页大小发生变化，那么网页也发生了变化。
我刚才抓包分析了一下discuz.net：
HTTP/1.1 200 OK
Server: nginx/0.6.29
Date: Sat, 12 Apr 2008 03:46:59 GMT
Content-Type: text/html
Transfer-Encoding: chunked
Connection: keep-alive
X-Powered-By: PHP/5.2.5
Set-Cookie: dznet_sid=WfAtY2; expires=Sat, 19-Apr-2008 03:46:59 GMT; path=/; domain=.discuz.net

里面没有content-length ，而现实中大多数的apache+php是有这个content-length这一项的。
最近我也在研究head,写了一篇blog： http://www.trac.net.cn/2008/04/baiduspider-head.html 可以交流一下</description>
		<content:encoded><![CDATA[<p>除了last-modifed, etag，baidu还关注一个字段 content-length.。 道理也显而易见，如果网页大小发生变化，那么网页也发生了变化。<br />
我刚才抓包分析了一下discuz.net：<br />
HTTP/1.1 200 OK<br />
Server: nginx/0.6.29<br />
Date: Sat, 12 Apr 2008 03:46:59 GMT<br />
Content-Type: text/html<br />
Transfer-Encoding: chunked<br />
Connection: keep-alive<br />
X-Powered-By: PHP/5.2.5<br />
Set-Cookie: dznet_sid=WfAtY2; expires=Sat, 19-Apr-2008 03:46:59 GMT; path=/; domain=.discuz.net</p>
<p>里面没有content-length ，而现实中大多数的apache+php是有这个content-length这一项的。<br />
最近我也在研究head,写了一篇blog： <a href="http://www.trac.net.cn/2008/04/baiduspider-head.html" rel="nofollow">http://www.trac.net.cn/2008/04/baiduspider-head.html</a> 可以交流一下</p>
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