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搜索引擎判断一个链接的质量，从哪些方面进行评估？

搜索引擎判断一个链接的质量时，会从以下方面进行评估： 1.链接来源的信誉度：搜索引擎会检查链接来源的域名，域名的年龄、权威度、历史等因素，来判断链接的质量。 2.链接的主题相关性：链接的主题与所在页面的主题相关性，搜索引擎会认为这是一个更有价值的链接。 3.链接的数量和种类：外链数量越多不一定越好，搜索引擎会判断外链的来源，如果是众多网站都引用的权威网站，那么这个链接的质量就比较高。 4.链接的锚文本：锚文本也是评估链接质量的重要因素，使用相关性高的锚文本可以增加链接质量。 5.链接的位置：链接的位置也能影响链接的质量，如果链接在页面主体部分，那么链接的权重会更高一些。 6.链接的可访问性：链接是否可以正常被搜索引擎访问到，对于链接的质量也有影响。

Public @ 2023-06-05 16:00:15

博客友情链接的风险和规避

对于博客友情链接，存在以下风险： 1. 增加 SEO 风险：如果过多的友情链接来自于低质量的网站，可能会被搜索引擎视为垃圾链接，进而影响博客的 SEO。 2. 网站停止运营：如果你的友情链接网站停止运营，那么这些链接就会成为死链接，影响你博客的用户体验。 3. 遭受 Google 惩罚：如果你的友情链接违反了 Google 的规定，那么你的博客也可能会因为连带而受到惩罚，这对于博客来说是非常

Public @ 2023-06-16 08:00:35

网络SEO外链指南

做SEO网站推广，都知道“内容为王，外链为皇”。百度去年7月发布公告称，最新的超链算法仅信任小范围内的优质重要外链，垃圾外链无法提升权重，而且容易被K站。那外链还能做吗，当然要做，酒香也怕巷子深，对于每个站长来说，除了做好网站内容和服务外，还要让更多的人了解。笔者根据2016年的网络环境，整理了这份外链指南，希望对大家的SEO之路有些帮助。1、媒体平台投稿写好的软文，加上链接和关键词，让那些热门的

Public @ 2010-01-01 16:21:07

什么样的链接是好链接

查看关键词排名时，我们会注意到排名与外部链接绝对数量之间并没有直接对应关系。很多外部链接数目较少的页面会排在有很多外部链接的页面之上。这也是很多SEO新手的困惑，为什么自己的外部链接很多，排名却不如只有几个链接的竞争对手？这与外部链接的质量有很大的关系。下面讨论好的外部链接应该具备哪些条件1.点击流量虽然从SEO角度看，外部链接是提高排名的最直接手段，但点击流量才是链接的最初意义。2.单向链接最好

Public @ 2014-09-05 16:21:17

怎样查询反向链接？

所有做搜索引擎优化的人都肯定要时不时的查询某个网页或某个域名的反向链接，不光是自己的网站，也会查竞争对手的网站。有很多方法可以查反向链接，主要都是通过搜索引擎来查，当然也有一些软件工具自动查询，但也都是向搜索引擎发查询指令。下面对几大搜索引擎的反向链接查询做个比较。GoogleGoogle给出的反向链接数是最没用的，基本上可以忽略。Google自己说这些反向链接数是不准确的，更新的时间表也只有他们

Public @ 2009-12-17 16:19:15

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[ DB ] CONNECT:[ UseTime:0.022842s ] mysql:dbname=briline.net;host=106.14.77.182;port=3306;charset=utf8
[ SQL ] SHOW COLUMNS FROM `ob_article` [ RunTime:0.016306s ]
[ SQL ] SELECT * FROM `ob_article` WHERE `id` = 8481 LIMIT 1 [ RunTime:0.015352s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'const', 'possible_keys' => 'PRIMARY', 'key' => 'PRIMARY', 'key_len' => '4', 'ref' => 'const', 'rows' => 1, 'extra' => NULL, ) ]
[ SQL ] select * from `ob_article_tongji` where category_id=12 and mark_type='cate' order by times desc limit 15 [ RunTime:0.015650s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article_tongji', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 608, 'extra' => 'Using where; Using filesort', ) ]
[ SQL ] select * from `ob_article_tongji` where category_id=12 and mark_type='tags' order by times desc limit 100 [ RunTime:0.015830s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article_tongji', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 608, 'extra' => 'Using where; Using filesort', ) ]
[ SQL ] select * from `ob_article_tongji` where category_id=12 and mark_type='tags' order by rand() limit 30 [ RunTime:0.015900s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article_tongji', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 608, 'extra' => 'Using where; Using temporary; Using filesort', ) ]
[ SQL ] SELECT * FROM `ob_article` WHERE `id` = 8481 LIMIT 1 [ RunTime:0.015310s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'const', 'possible_keys' => 'PRIMARY', 'key' => 'PRIMARY', 'key_len' => '4', 'ref' => 'const', 'rows' => 1, 'extra' => NULL, ) ]
[ SQL ] update `ob_article` set views=views+2 where id=8481 [ RunTime:0.017732s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `ob_article` WHERE `category_id` = 12 AND `cate` = '威海外部链接建设' AND `status` <> -1 LIMIT 1 [ RunTime:0.022235s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 8035, 'extra' => 'Using where', ) ]
[ SQL ] SELECT * FROM `ob_article` WHERE `category_id` = 12 AND `cate` = '威海外部链接建设' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.033853s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 8035, 'extra' => 'Using where; Using temporary; Using filesort', ) ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `ob_article` WHERE `category_id` = 12 AND `tags` = '威海外部链接建设' AND `status` <> -1 LIMIT 1 [ RunTime:0.024187s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 8035, 'extra' => 'Using where', ) ]
[ SQL ] SELECT * FROM `ob_article` WHERE `category_id` = 12 AND `tags` = '威海外部链接建设' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.034229s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 8035, 'extra' => 'Using where; Using temporary; Using filesort', ) ]

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