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搜索引擎如何判断锚文本质量

搜索引擎判断锚文本是否适合，主要通过如下几点判断：

（1）锚文本植入符合文章需求，该出现的时候出现，不该出现的时候不要出现。

（2）对所在文章有促进作用，用户阅读的时候可以通过锚文本扩展阅读。

（3）能延展用户需求，挖掘用户额外需求并满足。

（4）锚文本设置的数量和位置都做到依据文章的延展需求而定。

来源：搜外网

Public @ 2010-06-08 16:11:33

sitemap提交后，多久能被百度抓取？

通常情况下，一般会在一天内被百度抓取，但具体时间会因网站规模、更新频率等因素而有所不同。如果您在提交 sitemap 后一周内没有看到任何变化，建议检查您的 sitemap 是否正确并重新提交。

Public @ 2023-06-10 08:00:05

sitemap都支持哪些格式?

支持XML格式和TXT文本格式。

Public @ 2018-09-08 16:11:57

锚文本（AnchorText）

锚文本又称锚文本链接，是链接的一种方法，和超链接类似，超链接的代码是锚文本，把文章中的要害词做一个链接，指向别的网页，这种方法的链接就叫作锚文本。

Public @ 2012-11-26 15:51:49

网站描文本还有作用吗？

威海seo问答威海锚文字
1018

问：请问文章描文本有用吗？答：如果网站本身有权重，那么描文本是有作用的，如果网站本身没权重描了也不会有作用。所以通常而言，我们不建议新站做描文本，权重3开始做描文本刚刚好！来源：A5营销

Public @ 2014-05-07 16:04:56

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基本文件流程错误 SQL 调试

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[ DB ] CONNECT:[ UseTime:0.022287s ] mysql:dbname=briline.net;host=106.14.77.182;port=3306;charset=utf8
[ SQL ] SHOW COLUMNS FROM `ob_article` [ RunTime:0.015791s ]
[ SQL ] SELECT * FROM `ob_article` WHERE `id` = 4578 LIMIT 1 [ RunTime:0.015038s ]
[ 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:0.015333s ]
[ 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:0.015578s ]
[ 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:0.016295s ]
[ 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` = 4578 LIMIT 1 [ RunTime:0.014939s ]
[ 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+1 where id=4578 [ RunTime:0.017586s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `ob_article` WHERE `category_id` = 12 AND `cate` = '威海网站结构优化' AND `status` <> -1 LIMIT 1 [ RunTime:0.024518s ]
[ 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` = '威海网站结构优化' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.042415s ]
[ 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` = '威海锚文字' AND `status` <> -1 LIMIT 1 [ RunTime:0.024338s ]
[ 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` = '威海锚文字' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.036209s ]
[ 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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