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常見(jiàn)的robots.txt文件用法實(shí)例

常見(jiàn)的robots.txt文件用法實(shí)例：

1、禁止所有搜索引擎抓取網(wǎng)站的任何部分

User-agent: *

Disallow: /

這是禁止所有目錄和文件被所有搜索引擎收錄。網(wǎng)站還沒(méi)上線時(shí)，有的會(huì)先屏蔽所有蜘蛛抓取。

2、允許所有的spider抓?。ɑ蛘咭部梢越ㄒ粋€(gè)空的robots.txt文件）

User-agent: *

Allow: /

這是允許所有搜索引擎抓取網(wǎng)站的任何部分，既然是允許所有文件被抓取，可以不用創(chuàng)建robtos.txt文件，即默認(rèn)全部允許抓取。

3、禁止spider抓取特定目錄

User-agent: *

Disallow: /a/

Disallow: /b/

Disallow: /c/

這是禁止所有的spider抓取a、b、c目錄。這個(gè)規(guī)則我們最常用到，比如網(wǎng)站的程序后臺(tái)、程序目錄等都可以禁止spider抓取，以減少spider無(wú)意義的浪費(fèi)我們的空間資源。

4、禁止spider抓取搜索結(jié)果頁(yè)面

User-agent: *

Disallow: /so_article?*

如果你網(wǎng)站的搜索結(jié)果頁(yè)面URL格式如：/so_article?keyword=搜索關(guān)鍵字，則按以上格式進(jìn)行屏蔽，注意最后帶了一個(gè)星號(hào)*，代表屏蔽so_article?帶頭的所有URL。

對(duì)于大部分網(wǎng)站，常用的就是以上4種情況。

來(lái)源：搜外網(wǎng)

Public @ 2010-05-21 16:09:23

能否利用canonical標(biāo)簽陷害競(jìng)爭(zhēng)對(duì)手？

今天再介紹一個(gè)黑帽負(fù)面SEO的想法：利用canonical標(biāo)簽陷害競(jìng)爭(zhēng)對(duì)手。聊黑帽SEO絕不是建議讀者做黑帽，優(yōu)化正規(guī)網(wǎng)站的還是盡量別嘗試，風(fēng)險(xiǎn)很大。但了解黑帽SEO方法，一是開(kāi)拓思路，第二更重要的是，防范別人用負(fù)面SEO方法陷害自己。站長(zhǎng)們認(rèn)真觀察的話一定會(huì)發(fā)現(xiàn)，負(fù)面SEO的嘗試是一直在發(fā)生的。我這個(gè)小小的、誰(shuí)也不得罪的SEO博客都經(jīng)常被人制造巨量垃圾鏈接、制造大量敏感詞搜索頁(yè)面、刷跳出率等等，

Public @ 2019-01-30 16:11:18

如何替換請(qǐng)求URL中的文字？

如何替換請(qǐng)求URL中的文字？解決方案如下，僅適用于Apache服務(wù)器。在.htaccess文件中添加以下語(yǔ)句：RewriteCond %{REQUEST_URL} "string1"RewriteRule "(.*)"string1(.*)" "$1string2$2"

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

robots.txt：如何讓搜索引擎不要抓取沒(méi)用的頁(yè)面

| 什么是robots文件？Robots是站點(diǎn)與spider溝通的重要渠道，是網(wǎng)站與搜索引擎爬蟲(chóng)之間的協(xié)議，告知哪些可抓取哪些不允許。| 為什么要做robots文件？網(wǎng)站上總有一些頁(yè)面是禁止蜘蛛抓取的。例如：搜索頁(yè)面、篩選頁(yè)面、后臺(tái)登錄地址等。| 如何制作 robots文件？編寫robots.txt文件并上傳到網(wǎng)站根目錄。| 制作 robots.txt注意事項(xiàng)● 所有搜索引擎則用星號(hào)表示● All

Public @ 2019-03-13 16:09:27

禁止搜索引擎收錄的方法

禁止搜索引擎收錄的方法什么是robots.txt文件?搜索引擎使用spider程序自動(dòng)訪問(wèn)互聯(lián)網(wǎng)上的網(wǎng)頁(yè)并獲取網(wǎng)頁(yè)信息。spider在訪問(wèn)一個(gè)網(wǎng)站時(shí)，會(huì)首先會(huì)檢查該網(wǎng)站的根域下是否有一個(gè)叫做 robots.txt的純文本文件，這個(gè)文件用于指定spider在您網(wǎng)站上的抓取范圍。您可以在您的網(wǎng)站中創(chuàng)建一個(gè)robots.txt，在文件中聲明該網(wǎng)站中不想被搜索引擎收錄的部分或者指定搜索引擎只收錄特定的部分

Public @ 2016-10-21 16:09:20

更多您感興趣的搜索

基本文件流程錯(cuò)誤 SQL 調(diào)試

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[ DB ] CONNECT:[ UseTime:0.022699s ] mysql:dbname=briline.net;host=106.14.77.182;port=3306;charset=utf8
[ SQL ] SHOW COLUMNS FROM `ob_config` [ RunTime:0.016283s ]
[ SQL ] SELECT * FROM `ob_config` [ RunTime:0.015100s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_config', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 25, 'extra' => NULL, ) ]
[ SQL ] SHOW COLUMNS FROM `ob_hook` [ RunTime:0.016120s ]
[ SQL ] SELECT `id`,`name`,`addon_list` FROM `ob_hook` [ RunTime:0.015010s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_hook', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 3, 'extra' => NULL, ) ]
[ SQL ] SHOW COLUMNS FROM `ob_article` [ RunTime:0.016214s ]
[ SQL ] SELECT * FROM `ob_article` WHERE `id` = 4432 LIMIT 1 [ RunTime:0.015179s ]
[ 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:0.015474s ]
[ 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:0.015967s ]
[ 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:0.016602s ]
[ 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` = 4432 LIMIT 1 [ RunTime:0.015033s ]
[ 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=4432 [ RunTime:0.024540s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `ob_article` WHERE `category_id` = 12 AND `cate` = '威海網(wǎng)站結(jié)構(gòu)優(yōu)化' AND `status` <> -1 LIMIT 1 [ RunTime:0.025406s ]
[ 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` = '威海網(wǎng)站結(jié)構(gòu)優(yōu)化' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.040123s ]
[ 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Robots' AND `status` <> -1 LIMIT 1 [ RunTime:0.025885s ]
[ 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Robots' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.033977s ]
[ 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', ) ]

0.558433s

Categories

Tags

常見(jiàn)的robots.txt文件用法實(shí)例

能否利用canonical標(biāo)簽陷害競(jìng)爭(zhēng)對(duì)手？

如何替換請(qǐng)求URL中的文字？

robots.txt：如何讓搜索引擎不要抓取沒(méi)用的頁(yè)面

禁止搜索引擎收錄的方法

更多您感興趣的搜索

Categories

Tags

常見(jiàn)的robots.txt文件用法實(shí)例

能否利用canonical標(biāo)簽陷害競(jìng)爭(zhēng)對(duì)手？

如何替換請(qǐng)求URL中的文字？

robots.txt：如何讓搜索引擎不要抓取沒(méi)用的頁(yè)面

禁止搜索引擎收錄的方法

更多您感興趣的搜索

能否利用canonical標(biāo)簽陷害競(jìng)爭(zhēng)對(duì)手？

如何替換請(qǐng)求URL中的文字？