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	<title>SEM WATCH 搜索引擎营销观察 &#187; SEO</title>
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		<title>SEOMOZ发布2011版搜索引擎排名因素调查报告</title>
		<link>http://semwatch.org/2011/06/seomoz%e5%8f%91%e5%b8%832011%e7%89%88%e6%90%9c%e7%b4%a2%e5%bc%95%e6%93%8e%e6%8e%92%e5%90%8d%e5%9b%a0%e7%b4%a0%e8%b0%83%e6%9f%a5%e6%8a%a5%e5%91%8a/</link>
		<comments>http://semwatch.org/2011/06/seomoz%e5%8f%91%e5%b8%832011%e7%89%88%e6%90%9c%e7%b4%a2%e5%bc%95%e6%93%8e%e6%8e%92%e5%90%8d%e5%9b%a0%e7%b4%a0%e8%b0%83%e6%9f%a5%e6%8a%a5%e5%91%8a/#comments</comments>
		<pubDate>Fri, 10 Jun 2011 10:27:17 +0000</pubDate>
		<dc:creator>编辑</dc:creator>
				<category><![CDATA[搜索优化SEO]]></category>
		<category><![CDATA[Google]]></category>
		<category><![CDATA[Page Rank]]></category>
		<category><![CDATA[SEO]]></category>
		<category><![CDATA[seomoz]]></category>

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			<content:encoded><![CDATA[<p>SEOMOZ的<a href="http://www.seomoz.org/blog/new-edition-ranking-factors-for-2011-live" target="_blank">新版搜索排名调查报告</a>受到不少SEO从业者的关注，希望SEMWATCH组织的翻译可以有助于大家理解其中数据和分析方法。请<a href="http://feed.feedsky.com/SEMWATCH" target="_blank">订阅</a>或关注<a href="http://weibo.com/semwatch" target="_blank">SEMWATCH.ORG</a>，该系列文章根据翻译进度分步发布。</p>
<p><span id="more-5059"></span></p>
<p>&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;</p>
<p>从2005年开始，SEOmoz每两年发布一次新版本搜索引擎排名因素调查报告，在此推出2011新版本，在原有方法基础上有全新的研究方法加入进来，听取132位世界各地的搜索引擎优化从业者投票意见，调查涉及超过10,000个Google搜索结果之上的相关数据。</p>
<p><img class="alignnone" title="seomoz-search-ranking-factors-survey-2011" src="http://www.seomoz.org/img/upload/ranking-factors-screenshot.gif" alt="" width="500" height="443" /></p>
<p>该报告篇幅较长，随后按主题分版块刊出。先看一段介绍视频:<br />
(SEMWATCH.ORG注: 大概介绍调查报告分为两部分，一部分从SEO不同细分领域的从业者那里采集他们的打分意见综合汇总，另一部分基于10,000多google排名结果的统计汇总。)</p>
<p><object classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" width="480" height="400" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,40,0"><param name="align" value="middle" /><param name="src" value="http://player.youku.com/player.php/sid/XMjc0Mzc3NDMy/v.swf" /><param name="quality" value="high" /><embed type="application/x-shockwave-flash" width="480" height="400" src="http://player.youku.com/player.php/sid/XMjc0Mzc3NDMy/v.swf" quality="high" align="middle"></embed></object></p>
<p>在排名因素中，你可以看见通常的一些排名因素包括<strong>域名层面的关键词运用</strong>(譬如精准匹配关键词域名、在根域名或二级域名中使用到关键词等等)以及<strong>页面层面相关因素</strong>(指向页面的链接数量、mozRank等等)。这次主观意见报告中的力求数据更有可读性。下面图例展现页面相关的度量因素:</p>
<p><a href="http://semwatch.org/wp-content/uploads/2011/06/page_level_traffic_query_data1.gif"><img class="alignnone size-full wp-image-5082" title="page_level_traffic_query_data" src="http://semwatch.org/wp-content/uploads/2011/06/page_level_traffic_query_data1.gif" alt="" width="653" height="580" /></a></p>
<p>09的方法是针对五个大的影响因素采集&#8221;认同程度&#8221;意见基础上的标注差计算得出综合排名。此次<strong>11年采用新的格式</strong>:</p>
<ul>
<li>针对每个影响因素板块，进行单项中细分影响因素排名;</li>
<li>在影响力(influence value)中排位较高的被认为对于排名有更直接关联性;</li>
<li>影响力分值上采用100分制，以便于对于相关因素有更直观的表现。</li>
</ul>
<p>除了主观意见之外，还有基于10,271个搜索结果上的相关性研究报告。你可以了解所用的分析方法细节(SeoMoz数据科学家<a href="http://www.seomoz.org/users/profile/286574" target="_blank">Dr.Matt Perters</a>审查通过)，但是为了展现高低排名的一些特征，文中还是会采用一些不那么精致的笔记标识，如下图:<br />
<a href="http://semwatch.org/wp-content/uploads/2011/06/correlation_not_causation.gif"><img class="alignnone size-full wp-image-5069" title="correlation_not_causation" src="http://semwatch.org/wp-content/uploads/2011/06/correlation_not_causation.gif" alt="" width="566" height="575" /></a></p>
<p>和四月份发布的出于同一调研的社交相关性数据报告一样，请务必<strong>区分相关性和因果关系的不同</strong>。你会看见很多和排名结果正相关或负相关的一些因素几乎不可能存在于Google排名算法中。譬如，<strong>下面提到的两个页面层面的影响因素和高排名结果有正相关关系</strong>:<br />
<a href="http://semwatch.org/wp-content/uploads/2011/06/page_level_keyword_agnostic_features.gif"><img class="alignnone size-full wp-image-5070" title="page_level_keyword_agnostic_features" src="http://semwatch.org/wp-content/uploads/2011/06/page_level_keyword_agnostic_features.gif" alt="" width="575" height="188" /></a></p>
<p>我不相信哪个SEO从业者会认为页面中的连接数量(不是指向页面的外链数量)是Google排名算法中的考虑因素，或者谁会当真认为简单的增加网站的内链到页面的数量可以提升该页的排名。但是，正相关确确实实存在。也许仅仅因为权重高的大站有着很多的内链，而这些站点的页面排名高，结果你看见的结果是内链数量和页面有正相关(SEMWATCH.ORG注:搞清楚孰因孰果)。也可能有其他我们没有想到的因素造成的。正确的对待相关性的态度也许是:如果有相关性，那么应该进一步探索研究认证其中的真实原因。</p>
<p>根据132名专家的意见，报告中还绘制了一些很棒的图表。你可以在&#8221;预测+观点&#8221;板块找到。<br />
<a href="http://semwatch.org/wp-content/uploads/2011/06/special_casing_prominence.gif"><img class="alignnone size-full wp-image-5071" title="special_casing_prominence" src="http://semwatch.org/wp-content/uploads/2011/06/special_casing_prominence.gif" alt="" width="649" height="576" /></a></p>
<p>这个例子中，我们问询投票者指出一些Google算法中的一些特别的常见的影响排名的因素。你可以看见内容新鲜度(query deserves freshness)被最多认可，而内容主观价值取向被认为最不相关。</p>
<p>&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-</p>
<ul>
<li><a href="http://www.seomoz.org/article/search-ranking-factors#contributors" target="_blank">132名投票专家名录 </a></li>
<li><a href="http://www.seomoz.org/article/search-ranking-factors/2009" target="_blank">2009年排名因素调查报告</a></li>
<li><a href="http://www.slideshare.net/randfish">Rand Fishkin</a> 在<a href="http://www.slideshare.net/randfish/ranking-factors-data-2011-smx-elite-sydney" target="_blank">悉尼SMX上的PPT</a>，包含一些SEOMOZ的一些有趣有用数据</li>
<li><a href="http://www.seomoz.org/blog/new-edition-ranking-factors-for-2011-live" target="_blank">原文链接</a></li>
</ul>
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