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威海seo术语威海404页面
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HTTP404或NotFound过错信息是HTTP的其间一种“规范回应信息”（HTTP状况码），此信息代表客户端在阅览网页时，效劳器无法正常供给信息，或是效劳器无法回应且不知原因（详细可检查马海祥博客《404NotFound过错页面的解决办法和注意事项》的相关介绍）。

Public @ 2011-09-10 15:51:54

网站镜像

网站镜像经过复制整个网站或部分网页内容并分配以不同域名和效劳器，以此诈骗查找引擎对同一站点或同一页面进行屡次索引的行为，这既是为什么有的网站注明制止未授权不得做网站镜像的原因了，两个网站的内容完全一样，类似度过高必然会导致自己的网站受到影响。

Public @ 2012-01-17 15:37:49

相关的链接（relationallink）

- https://zh.wikipedia.org/wiki/%E7%9B%B8%E5%85%B3%E9%93%BE%E6%8E%A5 - https://developer.mozilla.org/zh-CN/docs/Learn/Server-side/First_steps/Relational_databases - https://blog.csdn.net/minganzhang/a

Public @ 2023-06-26 07:50:07

404页面该怎么做？

404页面的目的是：告诉浏览者其所请求的页面不存在或链接错误，同时引导用户使用网站其他页面而不是关闭窗口离开。很多开源系统如CMS系统、Blog系统等不提供404页面或提供的404页面并未达到SEO的要求，这让网站的权威性大打折扣。404页面该达到怎么样的效果才符合SEO要求？搜索引擎通过HTTP状态码来识别网页的状态。当搜索引擎获得了一个错误链接时，网站应该返回404状态码，告诉搜索引擎放弃对该

Public @ 2013-11-20 16:09:59

404页面是什么？

404页面是客户端在浏览网页时，服务器无法正常提供信息，或是服务器无法回应，且不知道原因所返回的页面。据说在第三次科技革命之前，互联网的形态就是一个大型的中央数据库，这个数据库就设置在404房间里面。那时候所有的请求都是由人工手动完成的，如果在数据库中没有找到请求者所需要的文件，或者由于请求者写错了文件编号，用户就会得到一个返回信息：room 404 : file not found。404错误信

Public @ 2014-05-13 16:11:01

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[ DB ] CONNECT:[ UseTime:0.029216s ] mysql:dbname=briline.net;host=106.14.77.182;port=3306;charset=utf8
[ SQL ] SHOW COLUMNS FROM `ob_article` [ RunTime:0.020598s ]
[ SQL ] SELECT * FROM `ob_article` WHERE `id` = 2713 LIMIT 1 [ RunTime:0.019658s ]
[ 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:0.025774s ]
[ 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:0.020121s ]
[ 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:0.020819s ]
[ 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` = 2713 LIMIT 1 [ RunTime:0.019692s ]
[ 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=2713 [ RunTime:0.020659s ]
[ 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:0.026888s ]
[ 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:0.042455s ]
[ 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404页面' AND `status` <> -1 LIMIT 1 [ RunTime:0.028432s ]
[ 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404页面' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.036654s ]
[ 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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