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链接深度是什么

链接深度是指一个网站内部链接的层级深度。在一个网站中，主页是深度为0的页面，主页上的链接指向的页面的深度为1，依此类推。深度越大，表示页面与主页之间的链接路径越长。通过了解链接深度可以帮助优化网站结构，提高搜索引擎的抓取效率和用户的浏览体验。

Public @ 2023-07-30 21:00:10

nofollow标签的作用有重大变化

2019年9月10日，Google宣布将不再将nofollow标签视为“组织不相信或不支持链接的其它公开声明”。以前，nofollow标签用于指示搜索引擎不要追踪某个链接，并将其对网页排名的权重减少，以防止垃圾信息和不良链接的滥用。然而，这一变化将重新定义nofollow标签的作用。根据Google的新规定，nofollow标签将被视为“建议搜索引擎不要给链接传输排名信号的提示”。这意味着

Public @ 2023-07-22 08:50:27

定向锚文本是什么？定向锚文本的意义

定向锚文本是指指向特定网页或网站的超链接所使用的文本。这些文本可以是通用的或特定的，它们的目的是为了帮助搜索引擎了解链接页面的内容和主题。具体来说，定向锚文本在搜索引擎优化中非常重要。它们可以帮助搜索引擎理解链接页面的主题和内容，并为其在搜索结果页面中的排名提供支持。例如，如果一个网站有很多与其主题相符的定向锚文本链接，那么搜索引擎可能会认为这个网站是一个权威性和相关性较高的网站，从而提升其在

Public @ 2023-06-15 22:50:14

链接深度是什么

链接深度是指从某一页面开始往下浏览的页面层数。例如，从网站的首页，点进一个链接，从该链接进入了网站的第二层，此时的链接深度为2。链接深度有利于更好地理解网站的结构，也有助于搜索引擎优化等。

Public @ 2023-02-25 06:36:11

链接深度是什么

链接深度是指一个网站内部链接的层级深度。在一个网站中，主页是深度为0的页面，主页上的链接指向的页面的深度为1，依此类推。深度越大，表示页面与主页之间的链接路径越长。通过了解链接深度可以帮助优化网站结构，提高搜索引擎的抓取效率和用户的浏览体验。

Public @ 2023-07-30 21:00:10

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[ DB ] CONNECT:[ UseTime:0.021229s ] mysql:dbname=briline.net;host=106.14.77.182;port=3306;charset=utf8
[ SQL ] SHOW COLUMNS FROM `ob_article` [ RunTime:0.016096s ]
[ SQL ] SELECT * FROM `ob_article` WHERE `id` = 10161 LIMIT 1 [ RunTime:0.014197s ]
[ 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:0.014581s ]
[ 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:0.019342s ]
[ 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:0.014831s ]
[ 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` = 10161 LIMIT 1 [ RunTime:0.014291s ]
[ 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=10161 [ RunTime:0.017471s ]
[ 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:0.021562s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 9562, '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:0.035488s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 9562, 'extra' => 'Using where; Using temporary; Using filesort', ) ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `ob_article` WHERE `category_id` = 12 AND `tags` = '威海链接深度' AND `status` <> -1 LIMIT 1 [ RunTime:0.021637s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 9562, 'extra' => 'Using where', ) ]
[ SQL ] SELECT * FROM `ob_article` WHERE `category_id` = 12 AND `tags` = '威海链接深度' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.031988s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 9562, 'extra' => 'Using where; Using temporary; Using filesort', ) ]

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