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Robots META標(biāo)簽的寫法

如果您想讓搜索引擎忽略某些網(wǎng)頁(yè)，可以使用"robots" META標(biāo)簽。以下是這種標(biāo)簽的寫法： ```html ``` 上述標(biāo)簽將告訴搜索引擎不要索引或跟蹤該網(wǎng)頁(yè)。下面是一些其他常見(jiàn)的指令： - "index" 將指令搜索引擎索引該頁(yè)面。 - "follow" 將指令搜索引擎跟蹤此頁(yè)面上的鏈接。 - "noindex" 將指令搜索引擎不要索引此頁(yè)面。 - "nofollow" 將指令搜索引擎不要跟蹤此頁(yè)面上的鏈接。 - "none" 將指令搜索引擎既不索引該頁(yè)面，也不跟蹤與該頁(yè)面相關(guān)的鏈接。您可以在"content"部分中使用逗號(hào)分隔多個(gè)指令。例如，以下標(biāo)簽將告訴搜索引擎不要索引此頁(yè)面并且不要跟蹤此頁(yè)面上的鏈接： ```html ```

Public @ 2023-04-08 21:50:38

robots禁止抓取圖片

User-agent: *Disallow: .jpg$jpg可以代替為gif，png 等等...來(lái)源：360站長(zhǎng)平臺(tái)

Public @ 2023-01-15 16:09:02

網(wǎng)站如何做好 301/302 跳轉(zhuǎn)

1. 理解 HTTP 狀態(tài)碼 301/302： HTTP 狀態(tài)碼是用來(lái)告知瀏覽器服務(wù)器返回的狀態(tài)信息，它是用來(lái)表示網(wǎng)絡(luò)交互中出現(xiàn)的狀態(tài)。301 是永久性跳轉(zhuǎn)，指示瀏覽器所請(qǐng)求的頁(yè)面已永久性移到新位置。302 是臨時(shí)跳轉(zhuǎn)，表示瀏覽器訪問(wèn)新的頁(yè)面時(shí)會(huì)被重定向到另一個(gè)暫時(shí)的網(wǎng)址，會(huì)在指定的時(shí)間后返回原來(lái)的網(wǎng)址。 2. 定義 301/302 跳轉(zhuǎn)：要定義 301/302 跳轉(zhuǎn)，首先要明確目的，

Public @ 2023-02-25 07:12:42

robots.txt文件放在哪里?

robots.txt文件放在哪里?robots.txt文件應(yīng)該放置在網(wǎng)站根目錄下。舉例來(lái)說(shuō)，當(dāng)spider訪問(wèn)一個(gè)網(wǎng)站（比如 http://www.abc.com）時(shí)，首先會(huì)檢查該網(wǎng)站中是否存在http://www.abc.com/robots.txt這個(gè)文件，如果 Spider找到這個(gè)文件，它就會(huì)根據(jù)這個(gè)文件的內(nèi)容，來(lái)確定它訪問(wèn)權(quán)限的范圍。網(wǎng)站 URL相應(yīng)的 robots.txt的 URLhtt

Public @ 2017-01-09 16:08:57

Robots.txt 文件應(yīng)放在哪里？

obots.txt 文件必須放在網(wǎng)站的根目錄。放在子目錄的 Robots.txt 文件搜索引擎不能爬取到，所以不會(huì)起任何作用。如：https://www.seowhy.com/robots.txt 是有效的。https://www.seowhy.com/a/robots.txt 是無(wú)效的。以下3種情況需要注意：1、如果手機(jī)網(wǎng)站采用的是m.的二級(jí)域名，要給手機(jī)網(wǎng)

Public @ 2018-08-20 16:09:23

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[ DB ] CONNECT:[ UseTime:0.025505s ] mysql:dbname=briline.net;host=106.14.77.182;port=3306;charset=utf8
[ SQL ] SHOW COLUMNS FROM `ob_article` [ RunTime:0.018082s ]
[ SQL ] SELECT * FROM `ob_article` WHERE `id` = 6972 LIMIT 1 [ RunTime:0.017230s ]
[ 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:0.017356s ]
[ 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:0.017705s ]
[ 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:0.018925s ]
[ 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` = 6972 LIMIT 1 [ RunTime:0.016962s ]
[ 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=6972 [ RunTime:0.020777s ]
[ 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:0.024100s ]
[ 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:0.038955s ]
[ 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:0.024321s ]
[ 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:0.034328s ]
[ 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', ) ]

0.466869s