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關(guān)于robots.txt的二三事

1. Robots.txt是一個(gè)協(xié)議，用于控制搜索引擎爬蟲的訪問范圍。 2. Robots.txt文件位于網(wǎng)站的根目錄下，包含了一些指令告訴爬蟲哪些頁面可以訪問，哪些頁面需要限制訪問。 3. Robots.txt文件并不會(huì)阻止所有爬蟲的訪問，只有支持Robots.txt協(xié)議的爬蟲才會(huì)遵守文件中的指令。 4. Robots.txt文件中的指令可以根據(jù)不同的爬蟲進(jìn)行個(gè)性化設(shè)置，可以控制不同爬蟲訪問不同的頁面。 5. Robots.txt文件中可以使用通配符設(shè)置規(guī)則，如“*”代表任意字符，“$”代表結(jié)尾等。 6. 一些常見的搜索引擎會(huì)讀取Robots.txt文件，如Google、Baidu、Bing等。 7. Robots.txt文件可以更改，如果需要讓某些頁面對所有爬蟲開放或限制訪問，可以通過修改文件來實(shí)現(xiàn)。 8. 另外，Robots.txt文件是公開的，任何人都可以訪問，因此需要慎重處理敏感信息的指令。

Public @ 2023-04-11 13:00:34

301重定向的實(shí)現(xiàn)方法

頁面永久性移走（301重定向）是一種非常重要的“自動(dòng)轉(zhuǎn)向”技術(shù)。301重定向可促進(jìn)搜索引擎優(yōu)化效果從搜索引擎優(yōu)化角度出發(fā)，301重定向是網(wǎng)址重定向最為可行的一種辦法。當(dāng)網(wǎng)站的域名發(fā)生變更后，搜索引擎只對新網(wǎng)址進(jìn)行索引，同時(shí)又會(huì)把舊地址下原有的外部鏈接如數(shù)轉(zhuǎn)移到新地址下，從而不會(huì)讓網(wǎng)站的排名因?yàn)榫W(wǎng)址變更而收到絲毫影響。同樣，在使用301永久性重定向命令讓多個(gè)域名指向網(wǎng)站主域時(shí)，亦不會(huì)對網(wǎng)站的排名產(chǎn)生

Public @ 2011-02-22 16:09:12

子域名和子目錄哪個(gè)更有利于SEO？

從SEO的角度來看，子目錄比子域名更有優(yōu)勢。以下是一些原因： 1. 子目錄可以利用主域名的域名權(quán)威度和鏈接流量，增加頁面的搜索引擎排名。 2. 利用子目錄可以為網(wǎng)站維護(hù)一個(gè)整體一致的品牌形象。 3. 相對于子域名，子目錄更容易建立目錄級別的結(jié)構(gòu)，這對于網(wǎng)站的整體性和分類有很大的幫助。 4. 子目錄可以防止重復(fù)內(nèi)容問題，因?yàn)橛锌赡軙?huì)發(fā)生子域名和主域名相同的情況。總的來說，從SEO角度來看

Public @ 2023-04-25 15:50:14

Robots文件是否支持中文目錄

有同學(xué)問百度站長學(xué)堂一個(gè)關(guān)于robots的問題：我們有個(gè)站點(diǎn)的目錄結(jié)構(gòu)使用的是中文，這樣式兒的：www.a.com/冒險(xiǎn)島/123.html，那在制作robots文件和sitemap文件的時(shí)候，可以直接使用中文嗎？百度能獲取到嗎？在實(shí)際操作中我們發(fā)現(xiàn)，sitemap中有文件是可以生效的，但robots封禁貌似沒有反應(yīng)，所以想確認(rèn)一下：robots文件是否支持中文?工程師解答：Baiduspider

Public @ 2013-01-02 16:08:54

robots使用誤區(qū)

誤區(qū)一:我的網(wǎng)站上的所有文件都需要蜘蛛抓取，那我就沒必要在添加robots.txt文件了。反正如果該文件不存在，所有的搜索蜘蛛將默認(rèn)能夠訪問網(wǎng)站上所有沒有被口令保護(hù)的頁面。每當(dāng)用戶試圖訪問某個(gè)不存在的URL時(shí)，服務(wù)器都會(huì)在日志中記錄404錯(cuò)誤(無法找到文件)。每當(dāng)搜索蜘蛛來尋找并不存在的robots.txt文件時(shí)，服務(wù)器也將在日志中記錄一條404錯(cuò)誤，所以你應(yīng)該做網(wǎng)站中添加一個(gè)robots.txt

Public @ 2017-10-31 16:09:18

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:0.028916s ] mysql:dbname=briline.net;host=106.14.77.182;port=3306;charset=utf8
[ SQL ] SHOW COLUMNS FROM `ob_article` [ RunTime:0.020389s ]
[ SQL ] SELECT * FROM `ob_article` WHERE `id` = 7084 LIMIT 1 [ RunTime:0.019637s ]
[ 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:0.019929s ]
[ 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:0.019970s ]
[ 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:0.020106s ]
[ 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` = 7084 LIMIT 1 [ RunTime:0.019443s ]
[ 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=7084 [ RunTime:0.020589s ]
[ 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:0.026247s ]
[ 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:0.041037s ]
[ 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:0.026891s ]
[ 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:0.042979s ]
[ 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', ) ]

0.529132s

Categories

Tags

關(guān)于robots.txt的二三事

301重定向的實(shí)現(xiàn)方法

子域名和子目錄哪個(gè)更有利于SEO？

Robots文件是否支持中文目錄

robots使用誤區(qū)

更多您感興趣的搜索

Categories

Tags

關(guān)于robots.txt的二三事

301重定向的實(shí)現(xiàn)方法

子域名和子目錄哪個(gè)更有利于SEO？

Robots文件是否支持中文目錄

robots使用誤區(qū)

更多您感興趣的搜索

子域名和子目錄哪個(gè)更有利于SEO？