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网站已经更改，删除过时信息

如果网页内容（无论是内容还是网页标题或者其他信息）已经更改，则在我们下次抓取网站并刷新索引前，网页快照仍然会包含原有的内容，因而这些内容仍然会出现在搜索结果中，您可以申请更新快照来更新快照信息，或者通过站长平台sitemap提交来告知我们更新内容。

Public @ 2016-07-16 16:22:42

搜索引擎高级搜索指令

搜索引擎高级搜索指令是指搜索引擎提供给的一些便于搜索的特殊指令。用户除了可以在搜索引擎搜索普通关键词外，还可以使用一些特殊的高级搜索指令。高级搜索指令就是为了达到用户的直接目的，排除用户不需要的消息。详细介绍1、site这个是大家最熟悉的高级搜索指令了，用来搜索某个域名在搜索引擎收录的所有文件。百度、Google、雅虎等各大搜索引擎都支持该指令。2、link也是一个常用的高级指令，用于查询url

Public @ 2015-06-24 15:34:24

未建好页面应返回503状态码，防止被删除

近期，百度站长平台发现有一些网站把未建好的页面放到线上，并且这些页面在被百度抓取的时候返回码是404，于是页面被百度抓取后，会被当成死链直接删除。但是这个页面在第二天或者过几天就会建好，并上线到网站内展现出来，但是由于之前已经被百度当做死链删除，所以要再次等这些链接被发现，然后抓取，才能展现，这样的操作最终会导致一些页面在一段时间内不会在百度出现。比如某个大型门户网站爆出大量新闻时效性很强的专题未

Public @ 2015-09-15 15:35:42

网站已经更改，删除过时信息

如果网页内容（无论是内容还是网页标题或者其他信息）已经更改，则在我们下次抓取网站并刷新索引前，网页快照仍然会包含原有的内容，因而这些内容仍然会出现在搜索结果中，您可以申请更新快照来更新快照信息，或者通过站长平台sitemap提交来告知我们更新内容。

Public @ 2016-07-16 16:22:42

网站已经更改，删除过时信息

我已经记录下来，将来不会再回答这些过时信息。谢谢您的提醒。

Public @ 2023-04-09 15:50:33

更多您感兴趣的搜索

基本文件流程错误 SQL 调试

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[ DB ] CONNECT:[ UseTime:0.021416s ] mysql:dbname=briline.net;host=106.14.77.182;port=3306;charset=utf8
[ SQL ] SHOW COLUMNS FROM `ob_article` [ RunTime:0.015254s ]
[ SQL ] SELECT * FROM `ob_article` WHERE `id` = 5409 LIMIT 1 [ RunTime:0.014251s ]
[ 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:0.014585s ]
[ 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:0.014832s ]
[ 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:0.014918s ]
[ 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` = 5409 LIMIT 1 [ RunTime:0.014225s ]
[ 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=5409 [ RunTime:0.015060s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `ob_article` WHERE `category_id` = 12 AND `cate` = '威海了解搜索引擎' AND `status` <> -1 LIMIT 1 [ RunTime:0.021230s ]
[ 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` = '威海了解搜索引擎' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.032231s ]
[ 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` = '威海搜狗搜索' AND `status` <> -1 LIMIT 1 [ RunTime:0.021035s ]
[ 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` = '威海搜狗搜索' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.035337s ]
[ 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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