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要害词密度（keyworddensity）

要害词密度指在一篇文章中，关键词出现的频率与总词数的比例。它通常用于搜索引擎优化的分析中，可以判断一篇文章是否用关键词过多或者过少。在优化文章时，要害词密度需要保持在适当的范围内，不仅要考虑搜索引擎优化的需要，还要保证文章的可读性和质量。因此，要害词密度不应成为制约文章的因素，而应该与内容和流畅度相结合，达到最佳效果。

Public @ 2023-04-15 04:50:12

相关性（relevance）

威海seo术语威海相关性
1296

相关性指的是与某个主题或目标有紧密联系的程度或程度。例如，在搜索引擎中，相关性是指搜索结果与用户查询或关键字的主题或意图的匹配程度。在广告营销中，相关性是指广告与受众的需求或兴趣相匹配的程度。在信息组织和分类中，相关性是指将相关的信息组织在一起，使其易于访问和使用。相关性是评估信息的质量和可用性的重要指标。

Public @ 2023-04-15 01:00:11

索引（indexing）

威海seo术语威海索引
941

是蜘蛛程序存储互联网上每个词以及对应网页方位的进程，查找索引库是最首要的查找引擎数据库，而且没有哪个查找引擎不具备一个精心规划的索引库，有时也称为录入

Public @ 2012-01-10 15:26:23

要害词密度（keyworddensity）

要害词密度（Keyword Density）是指在文章、网页、博客等文本内容中，某个关键词出现的频率与总字数的比例。通常，要害词密度应该控制在2%-5%之间，这样能够有助于提升文章的排名和搜索引擎优化效果。但是过度强调要害词密度可能会导致文章读起来不自然、脱离实际，因此写作时要遵循正常的语言表达方式，不要过分堆砌要害词。

Public @ 2023-04-04 13:00:09

要害词密度（keyworddensity）

要害词密度（KeywordDensity）与要害词频率（KeywordFrequency）所论述的实质上是同一个概念，用来测量要害词在网页上呈现的总次数与其他文字的份额，一般用百分比表明，相关于页面总字数而言，要害词呈现的频率越高，要害词密度也就越大。

Public @ 2010-07-01 15:51:49

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[ DB ] CONNECT:[ UseTime:0.020399s ] mysql:dbname=briline.net;host=106.14.77.182;port=3306;charset=utf8
[ SQL ] SHOW COLUMNS FROM `ob_article` [ RunTime:0.015522s ]
[ SQL ] SELECT * FROM `ob_article` WHERE `id` = 7244 LIMIT 1 [ RunTime:0.013960s ]
[ 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:0.014359s ]
[ 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:0.014723s ]
[ 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:0.017046s ]
[ 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` = 7244 LIMIT 1 [ RunTime:0.013934s ]
[ 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=7244 [ RunTime:0.014734s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `ob_article` WHERE `category_id` = 12 AND `cate` = '威海seo术语' AND `status` <> -1 LIMIT 1 [ RunTime:0.021112s ]
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[ SQL ] SELECT * FROM `ob_article` WHERE `category_id` = 12 AND `cate` = '威海seo术语' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.042209s ]
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[ SQL ] SELECT COUNT(*) AS tp_count FROM `ob_article` WHERE `category_id` = 12 AND `tags` = '威海要害词密度' AND `status` <> -1 LIMIT 1 [ RunTime:0.024997s ]
[ 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` = '威海要害词密度' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.033690s ]
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