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死链接

威海seo术语威海死链
2653

死链接是网站建设中的专业术语，也就是无效链接，就是那些不行到达的链接，页面现已无效化，无法给用户供给任何有价值信息的页面就是死链接，包含协议死链和内容死链两种方法。

Public @ 2011-08-16 15:51:52

双向链接（tow-waylink）

威海seo术语威海双向链接
1629

也被称作互相链接，是对一个网页有超文本链接，一起政策网在链接回来正本的网页。

Public @ 2019-06-24 15:51:33

站点地图（sitemap）

威海seo术语威海站点地图
1957

站点地图（sitemap）是一个网站的页面列表，用于帮助搜索引擎或用户更容易地了解网站的结构和内容。这个页面列表通常以XML格式表示，包括网站的各个页面的URL地址、更新频率、修改日期等信息。站点地图有助于搜索引擎更好地索引网站的页面，提高网站的可见性和搜索引擎排名。同时，站点地图也可以为用户提供更好的导航和了解网站的整体结构。

Public @ 2023-06-12 23:50:14

常见的死链返回码

威海seo技术提升威海死链
2328

1. 404 Not Found 2. 410 Gone 3. 403 Forbidden 4. 500 Internal Server Error 5. 502 Bad Gateway 6. 503 Service Unavailable 7. 504 Gateway Timeout 8. 408 Request Timeout.

Public @ 2023-06-11 08:00:05

大量死链对搜索引擎来讲，有什么影响?

威海seo技术提升威海死链
2155

1、死链率过高，会影响搜索引擎对网站的评分。2、搜索引擎对每个网站每天抓取的频次是限额的，若网站存在大量死链，会浪费掉抓取配额并影响其他正常页面的抓取。3、过多死链对网站用户来讲也是体验不好的表现。来源：百度搜索资源平台百度搜索学堂

Public @ 2010-05-12 15:36:53

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基本文件流程错误 SQL 调试

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[ DB ] CONNECT:[ UseTime:0.026484s ] mysql:dbname=briline.net;host=106.14.77.182;port=3306;charset=utf8
[ SQL ] SHOW COLUMNS FROM `ob_article` [ RunTime:0.018582s ]
[ SQL ] SELECT * FROM `ob_article` WHERE `id` = 2710 LIMIT 1 [ RunTime:0.017847s ]
[ 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:0.018130s ]
[ 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:0.018289s ]
[ 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:0.022541s ]
[ 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` = 2710 LIMIT 1 [ RunTime:0.018234s ]
[ 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=2710 [ RunTime:0.018608s ]
[ 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:0.026268s ]
[ 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术语' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.045412s ]
[ 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:0.024652s ]
[ 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:0.038739s ]
[ 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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