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網(wǎng)站Nofollow標(biāo)簽的應(yīng)用場(chǎng)景

nofollow標(biāo)簽是HTML的一個(gè)屬性，用于告訴搜索引擎不要追蹤特定的網(wǎng)頁(yè)鏈接。減少垃圾對(duì)搜索引擎的排名影響。網(wǎng)站SEO優(yōu)化nofollow標(biāo)簽的應(yīng)用起到一定的作用。

網(wǎng)站Nofollow標(biāo)簽的應(yīng)用場(chǎng)景：

1、nofollow標(biāo)簽通常用于論壇帖子、博客評(píng)價(jià)，這些地方存在大量的其他網(wǎng)站鏈接，導(dǎo)致網(wǎng)站上的垃圾鏈接過(guò)多，影響蜘蛛爬取，現(xiàn)在很多博客cms都會(huì)帶有相關(guān)功能自動(dòng)加上nofollow。

2、給廣告鏈接加上nofollow可以告訴搜索引擎，這個(gè)是廣告，請(qǐng)不要傳遞鏈接權(quán)重。

3、網(wǎng)站內(nèi)部鏈接加上nofollow，整個(gè)網(wǎng)站的pr將不會(huì)傳遞到這種無(wú)用的頁(yè)面上。例如：法律申明、版權(quán)申明等類似的頁(yè)面。

4、還可以用于其他搜索價(jià)值不大和不重要的頁(yè)面URL加上nofollow，可以集中網(wǎng)站權(quán)重。

nofollow標(biāo)簽寫(xiě)法：

nofollow標(biāo)簽對(duì)網(wǎng)站網(wǎng)站SEO優(yōu)化的好處

1、集中網(wǎng)站權(quán)重。

2、防止網(wǎng)站的權(quán)重導(dǎo)向其他網(wǎng)站。

nofollow出現(xiàn)的意義是反垃圾外鏈，或群發(fā)外鏈。指示搜索引擎蜘蛛對(duì)網(wǎng)頁(yè)上帶nofollow屬性的出站鏈接不用爬行和抓取，可以說(shuō)加了nofollow標(biāo)簽的出站鏈接是不帶有任何權(quán)重的。

來(lái)源：搜外網(wǎng)

Public @ 2018-01-06 16:08:50

絕對(duì)路徑與相對(duì)路徑有什么區(qū)別？

絕對(duì)路徑與相對(duì)路徑有什么區(qū)別？在Html的應(yīng)用中經(jīng)常會(huì)涉及到絕對(duì)路徑與相對(duì)路徑的概念（如超級(jí)鏈接、圖片等），這兩種路徑所表達(dá)的意義在于絕對(duì)路徑可以精確引用，而相對(duì)路徑則是模糊應(yīng)用概念，只是在目標(biāo)目錄下找到引用，所以大多數(shù)Html工作者都會(huì)選擇使用相對(duì)路徑。絕對(duì)路徑與相對(duì)路徑有什么區(qū)別？相對(duì)路徑的三種寫(xiě)法介紹　　一、絕對(duì)路徑　　絕對(duì)路徑是指文件在硬盤上真正存在的路徑。例如“bg.jpg”這個(gè)圖片是存

Public @ 2020-01-09 16:11:48

我的網(wǎng)站同時(shí)有多種格式。需要都列出來(lái)嗎？

請(qǐng)?jiān)?Sitemap 中只列出一種格式的網(wǎng)址。包含多種格式的網(wǎng)址可能會(huì)導(dǎo)致抓取工具無(wú)法完整地抓取網(wǎng)站。

Public @ 2010-02-06 16:11:54

nofollow標(biāo)簽的作用有重大變化

2019年9月10日，Google官方博客表示，nofollow屬性將不再僅代表拒絕傳遞權(quán)重，而將拓展為三種屬性：rel="sponsored"、rel="ugc"、rel="nofollow"。 1. rel=”sponsored” 該屬性用于標(biāo)示被廣告贊助的鏈接，例如廣告合作，展示商標(biāo)，贊助商鏈接等。它是告訴搜索引擎，鏈接是被廣告商贊助，而非獨(dú)立推薦。 2. rel=”ugc” 該屬性

Public @ 2023-04-26 02:50:15

nofollow標(biāo)簽的作用有重大變化

幾個(gè)小時(shí)前，Google官方博客發(fā)了個(gè)帖子：Evolving “nofollow” – new ways to identify the nature of links （演變中的nofollow – 判斷鏈接性質(zhì)的新方法），公布從今天開(kāi)始，nofollow標(biāo)簽的作用和Google處理nofollow的方法有了重大變化。nofollow標(biāo)簽的歷史經(jīng)典的nofollow標(biāo)簽作用和使用方法以前的帖子寫(xiě)

Public @ 2020-07-01 16:08:47

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基本文件流程錯(cuò)誤 SQL 調(diào)試

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[ DB ] CONNECT:[ UseTime:0.026883s ] mysql:dbname=briline.net;host=106.14.77.182;port=3306;charset=utf8
[ SQL ] SHOW COLUMNS FROM `ob_article` [ RunTime:0.019277s ]
[ SQL ] SELECT * FROM `ob_article` WHERE `id` = 4365 LIMIT 1 [ RunTime:0.018172s ]
[ 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:0.018193s ]
[ 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:0.018398s ]
[ 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:0.018671s ]
[ 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` = 4365 LIMIT 1 [ RunTime:0.018185s ]
[ 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=4365 [ RunTime:0.021572s ]
[ 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:0.025383s ]
[ 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(jié)構(gòu)優(yōu)化' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.038492s ]
[ 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nofollow' AND `status` <> -1 LIMIT 1 [ RunTime:0.025310s ]
[ 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nofollow' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.034640s ]
[ 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', ) ]

0.477012s

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

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網(wǎng)站Nofollow標(biāo)簽的應(yīng)用場(chǎng)景

絕對(duì)路徑與相對(duì)路徑有什么區(qū)別？

我的網(wǎng)站同時(shí)有多種格式。需要都列出來(lái)嗎？

nofollow標(biāo)簽的作用有重大變化

nofollow標(biāo)簽的作用有重大變化

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

網(wǎng)站Nofollow標(biāo)簽的應(yīng)用場(chǎng)景

絕對(duì)路徑與相對(duì)路徑有什么區(qū)別？

我的網(wǎng)站同時(shí)有多種格式。需要都列出來(lái)嗎？

nofollow標(biāo)簽的作用有重大變化

nofollow標(biāo)簽的作用有重大變化

更多您感興趣的搜索

我的網(wǎng)站同時(shí)有多種格式。需要都列出來(lái)嗎？