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什么是死链

死链是指在网站中链接到的页面或资源已经不存在，链接成为了无效的链接。通常在网页访问时会提示404错误页面。死链会对用户的使用体验产生负面影响，对网站的搜索引擎优化也有不利的影响。

Public @ 2023-05-28 06:00:06

死链工具

威海seo技术提升威海死链
1001

死链工具是一种用于检测和修改网站中死链的软件或在线服务。死链是指网站上链接至不存在或已经失效的页面或文件的超链接。死链会增加网站的负载时间，因为在访问这些链接时，服务器需要处理请求并返回页面不存在的错误信息。死链工具可自动扫描网站中的链接，将死链列表展示给用户，并允许用户对这些链接进行修改或删除，以减少网站的负载时间和提高页面的访问速度。常见的死链工具包括 Xenu Link Sleuth、Scr

Public @ 2023-03-30 17:50:16

什么是死链

死链是指在网站中链接到的页面或资源已经不存在，链接成为了无效的链接。通常在网页访问时会提示404错误页面。死链会对用户的使用体验产生负面影响，对网站的搜索引擎优化也有不利的影响。

Public @ 2023-05-28 06:00:06

死链包括协议死链和内容死链两种形式

协议死链：指页面的TCP协议或者HTTP协议状态明确表示的死链，我们常见的404、403、503就属于协议死链；内容死链：指服务器返回状态是正常的，但是网页内容已经变更为不存在、已删除或需要权限等与网站原内容无关的信息页面。

Public @ 2016-03-17 15:56:21

死链接

威海seo术语威海死链
967

死链接即指指向的网页或资源已不存在或无法打开的链接，也称为坏链接、失效链接或无效链接。这些链接在网站优化和使用过程中都是不利的，会影响用户体验及搜索引擎排名。维护良好的站内链接和外部链接，删除或修复死链接是很重要的网站优化操作。

Public @ 2023-06-02 12:50:10

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[ DB ] CONNECT:[ UseTime:0.023135s ] mysql:dbname=briline.net;host=106.14.77.182;port=3306;charset=utf8
[ SQL ] SHOW COLUMNS FROM `ob_article` [ RunTime:0.017272s ]
[ SQL ] SELECT * FROM `ob_article` WHERE `id` = 8080 LIMIT 1 [ RunTime:0.015517s ]
[ 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:0.015865s ]
[ 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:0.016061s ]
[ 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:0.016495s ]
[ 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` = 8080 LIMIT 1 [ RunTime:0.015448s ]
[ 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=8080 [ RunTime:0.018471s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `ob_article` WHERE `category_id` = 12 AND `cate` = '威海seo技术提升' AND `status` <> -1 LIMIT 1 [ RunTime:0.022323s ]
[ 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seo技术提升' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.038839s ]
[ 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` = '威海死链' AND `status` <> -1 LIMIT 1 [ RunTime:0.022638s ]
[ 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` = '威海死链' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.032680s ]
[ 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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