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Robots.txt 文件应放在哪里？

Robots.txt文件应放在网站的根目录下。

Public @ 2023-06-23 19:50:03

robots简介

搜索引擎通过一种程序robot(又称spider)，自动访问互联网上的网页并获取网页信息。您可以在您的网站中创建一个纯文本文件robots.txt，在这个文件中声明该网站中不想被robot访问的部分，这样，该网站的部分或全部内容就可以不被搜索引擎收录了，或者指定搜索引擎只收录指定的内容。robots.txt(统一小写)是一种存放于网站根目录下的ASCII编码的文本文件，它通常告诉网络搜索引擎的漫游

Public @ 2022-05-30 16:09:18

如何替换请求URL中的文字？

如何替换请求URL中的文字？解决方案如下，仅适用于Apache服务器。在.htaccess文件中添加以下语句：RewriteCond %{REQUEST_URL} "string1"RewriteRule "(.*)"string1(.*)" "$1string2$2"

Public @ 2015-09-14 16:11:13

robot.txt在SEO中的作用

Robots.txt 是一个网站管理员可通过在站点根目录中放置一个名为robots.txt的文件来让搜索引擎（及其爬虫）知道该如何来收录并处理某些目录或页面，并使索引过程更加有效更加规范。 Robots.txt 的作用是向搜索引擎解释网站中哪些目录和文件希望被搜索引擎收录、哪些不希望收录，以避免搜索引擎抓取到网站误差的内容。如果 robots.txt 被恰当地设置，可以有效提高收录质量和网站

Public @ 2023-03-03 03:00:14

robots

robots是网站跟爬虫间的协议，用简单直接的txt格式文本方式告诉对应的爬虫被允许的权限，也就是说robots.txt是搜索引擎中访问网站的时候要查看的第一个文件。当一个搜索蜘蛛访问一个站点时，它会首先检查该站点根目录下是否存在robots.txt，如果存在，搜索机器人就会按照该文件中的内容来确定访问的范围;如果该文件不存在，所有的搜索蜘蛛将能够访问网站上所有没有被口令保护的页面。来源：360站

Public @ 2014-01-16 16:09:19

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[ DB ] CONNECT:[ UseTime:0.027651s ] mysql:dbname=briline.net;host=106.14.77.182;port=3306;charset=utf8
[ SQL ] SHOW COLUMNS FROM `ob_article` [ RunTime:0.019536s ]
[ SQL ] SELECT * FROM `ob_article` WHERE `id` = 9329 LIMIT 1 [ RunTime:0.018788s ]
[ 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:0.019363s ]
[ 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:0.019576s ]
[ 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:0.020210s ]
[ 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` = 9329 LIMIT 1 [ RunTime:0.018731s ]
[ 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=9329 [ RunTime:0.022249s ]
[ 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:0.025883s ]
[ 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:0.040761s ]
[ 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Robots' AND `status` <> -1 LIMIT 1 [ RunTime:0.025689s ]
[ 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Robots' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.035865s ]
[ 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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