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360搜索對Robots協(xié)議的擴展

360搜索對Robots協(xié)議進行了擴展，增加了以下幾個指令： 1. User-Agent：用于指定搜索引擎訪問網(wǎng)站時使用的用戶代理字符串，可以設置多個User-Agent。 2. Crawl-delay：用于指定搜索引擎訪問網(wǎng)站時的延遲時間，單位為秒?？梢栽O置針對不同的User-Agent的延遲時間。 3. Sitemap：用于指定網(wǎng)站的sitemap文件的地址，搜索引擎將通過該文件獲取站點的所有URL。 4. Host：用于指定網(wǎng)站的主機名，可以避免因為DNS變化導致搜索引擎爬蟲無法訪問網(wǎng)站。 5. Clean-param：用于指定需要從URL中移除的參數(shù)，搜索引擎在訪問網(wǎng)站時會忽略URL中包含的這些參數(shù)。 6. Noindex-nofollow：用于指定不需要被搜索引擎收錄或鏈接的頁面。這些指令的使用可以讓網(wǎng)站管理員更加靈活地控制搜索引擎爬蟲的訪問行為，以達到更好的SEO效果。

Public @ 2023-05-29 17:00:21

面包屑導航的原理與作用

面包屑導航來源很久很久以前，在大森林的邊上住著一個貧窮的樵夫，他與妻子和兩個孩子相依為命。他的兒子名叫漢賽爾，女兒名叫格萊特。后來樵夫的妻子去世了，他又給孩子們?nèi)⒘艘粋€后母。后母計劃把兩個孩子帶到森林的深處，然后趁他們睡著的時候跑掉。漢賽爾無意中知道了后母的計劃，于是偷偷地把一塊面包藏在了口袋里。在去森林的路上，漢賽爾悄悄地捏碎了他的面包，并不時地停下腳步，把碎面包屑撒在路上。后母順利地趁孩子們睡

Public @ 2014-09-18 16:11:42

什么是HTML版本網(wǎng)站地圖？網(wǎng)站地圖有什么作用？

網(wǎng)站地圖分為兩種，一種是HTML版本的網(wǎng)站地圖，另外一種則是XML網(wǎng)站地圖。今天主要給大家講解有關HTML版本。什么是HTML版本網(wǎng)站地圖？HTML版本的網(wǎng)站地圖就是用戶可以在網(wǎng)站上看到的，列出網(wǎng)站所有主要的鏈接頁面，一般會放在網(wǎng)站的頂部導航或者網(wǎng)站最底部，通常一些用戶進入某個網(wǎng)站時，想快速的進入某個欄目，就可以通過網(wǎng)站地圖來快速進入。網(wǎng)站地圖不能羅列所有頁面，可以采取兩種方法解決：1、網(wǎng)站地圖只

Public @ 2009-11-01 16:09:50

robots

robots是網(wǎng)站跟爬蟲間的協(xié)議，用簡單直接的txt格式文本方式告訴對應的爬蟲被允許的權限，也就是說robots.txt是搜索引擎中訪問網(wǎng)站的時候要查看的第一個文件。當一個搜索蜘蛛訪問一個站點時，它會首先檢查該站點根目錄下是否存在robots.txt，如果存在，搜索機器人就會按照該文件中的內(nèi)容來確定訪問的范圍;如果該文件不存在，所有的搜索蜘蛛將能夠訪問網(wǎng)站上所有沒有被口令保護的頁面。來源：360站

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

關于robots.txt的二三事

1. Robots.txt是一個協(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文件并不會阻止所有爬蟲的訪問，只有支持Robots.txt協(xié)議的爬蟲才會遵守文件中的指令。 4. Robots.txt文件中的指令可以根據(jù)不同的爬蟲進行個性化設置，可以控制不同爬蟲訪

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

更多您感興趣的搜索

基本文件流程錯誤 SQL 調(diào)試

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[ DB ] CONNECT:[ UseTime:0.023728s ] mysql:dbname=briline.net;host=106.14.77.182;port=3306;charset=utf8
[ SQL ] SHOW COLUMNS FROM `ob_article` [ RunTime:0.016986s ]
[ SQL ] SELECT * FROM `ob_article` WHERE `id` = 8150 LIMIT 1 [ RunTime:0.021955s ]
[ 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:0.016250s ]
[ 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:0.016341s ]
[ 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:0.016817s ]
[ 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` = 8150 LIMIT 1 [ RunTime:0.015877s ]
[ 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=8150 [ RunTime:0.024857s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `ob_article` WHERE `category_id` = 12 AND `cate` = '威海網(wǎng)站結構優(yōu)化' AND `status` <> -1 LIMIT 1 [ RunTime:0.027565s ]
[ 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` = '威海網(wǎng)站結構優(yōu)化' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.038163s ]
[ 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:0.023316s ]
[ 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:0.033719s ]
[ 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', ) ]

0.507704s

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Categories

Tags

360搜索對Robots協(xié)議的擴展

面包屑導航的原理與作用

什么是HTML版本網(wǎng)站地圖？網(wǎng)站地圖有什么作用？

robots

關于robots.txt的二三事

更多您感興趣的搜索

国产成人精品999视频&日本一区二区亚洲人妻精品&久久久精品国产99久久精&99热这里只有成人精品国产&精品国产剧情av一区二区&成人亚洲精品久久久久app&国产精品美女高潮抽搐A片

Categories

Tags

360搜索對Robots協(xié)議的擴展

面包屑導航的原理與作用

什么是HTML版本網(wǎng)站地圖？網(wǎng)站地圖有什么作用？

robots

關于robots.txt的二三事

更多您感興趣的搜索

什么是HTML版本網(wǎng)站地圖？網(wǎng)站地圖有什么作用？