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Nofollow使用示例

如某博客上有垃圾評(píng)論：

以下操作，即進(jìn)行了 nofollow：

在網(wǎng)頁(yè)的 <HEAD> 部分添加適當(dāng)?shù)?<META> 標(biāo)簽。

攔截所有搜索引擎把網(wǎng)頁(yè)收錄：

只是攔截百度蜘蛛爬取網(wǎng)頁(yè)，而允許其他搜索引擎收錄：

允許搜索引擎收錄你的網(wǎng)頁(yè)，但禁止其追蹤外部鏈接：

允許搜索引擎收錄你的網(wǎng)頁(yè)，但禁止其收錄網(wǎng)頁(yè)上的圖片：

Public @ 2016-11-01 16:08:52

404頁(yè)面是網(wǎng)站必備的一個(gè)頁(yè)面，它承載著用戶體驗(yàn)與SEO優(yōu)化的重任。404頁(yè)面通常為用戶訪問(wèn)了網(wǎng)站上不存在或已刪除的頁(yè)面，服務(wù)器返回的404錯(cuò)誤。如果站長(zhǎng)沒(méi)有設(shè)置404頁(yè)面，會(huì)出現(xiàn)死鏈接，蜘蛛爬行這類網(wǎng)址時(shí)，不利于搜索引擎收錄。原來(lái)404頁(yè)面可以這樣做網(wǎng)站設(shè)計(jì) 用戶體驗(yàn) 建站教程第1張?jiān)O(shè)置404頁(yè)面的兩大好處1：引導(dǎo)用戶不要關(guān)閉網(wǎng)站，增強(qiáng)用戶體驗(yàn)。2：防止網(wǎng)站出現(xiàn)死鏈接。設(shè)計(jì)404頁(yè)面的你可以

Public @ 2015-09-19 16:09:56

博客網(wǎng)站導(dǎo)航的制作

1.首先要對(duì)網(wǎng)站進(jìn)行分類：例如把所有的網(wǎng)站按分類，可以按照新聞、購(gòu)物、娛樂(lè)、學(xué)習(xí)等來(lái)劃分； 2.根據(jù)每個(gè)分類的特點(diǎn)，分別挑選幾個(gè)最受大家歡迎的網(wǎng)站，如新聞方面可選擇新浪、鳳凰等，購(gòu)物方面可選擇淘寶、京東等； 3.確定好標(biāo)題，根據(jù)每一類的網(wǎng)站的特點(diǎn)確定最簡(jiǎn)單的和一個(gè)看到就能理解的標(biāo)題，如新聞?lì)惪梢源_定為“新聞播報(bào)”，購(gòu)物類可以確定為“精品購(gòu)物”等； 4.確定好網(wǎng)站鏈接和圖標(biāo)，把各個(gè)網(wǎng)站圖標(biāo)

Public @ 2023-02-24 21:00:33

nofollow標(biāo)簽的作用有重大變化

自nofollow標(biāo)簽于2005年推出以來(lái)，其作用一直是指示搜索引擎不要追蹤鏈接。這項(xiàng)功能主要用于避免垃圾郵件和鏈接操縱，因?yàn)槟承┱军c(diǎn)會(huì)通過(guò)在其他站點(diǎn)上發(fā)布大量鏈接來(lái)提高其搜索引擎排名。nofollow標(biāo)簽的作用是告訴搜索引擎不要將鏈接計(jì)入其評(píng)估算法。然而，隨著SEO和數(shù)字營(yíng)銷的發(fā)展，nofollow標(biāo)簽的作用已經(jīng)發(fā)生了重大變化。現(xiàn)在，nofollow標(biāo)簽不僅能夠阻止鏈接被計(jì)入搜索引擎的排名算

Public @ 2023-06-27 14:00:46

nofollow是否會(huì)浪費(fèi)PR和權(quán)重？

6號(hào)寫(xiě)的帖子里嘮嘮叨叨寫(xiě)了好幾件之間沒(méi)什么關(guān)聯(lián)的事，其中一句是：利用nofollow控制PR流動(dòng)已經(jīng)不管用了，從一年前就不管用了。Matt Cutts前不久在SMX大會(huì)上透露了這點(diǎn)。更不妙的是，nofollow會(huì)浪費(fèi)PR和權(quán)重。也許以后博客都要關(guān)閉評(píng)論了。不過(guò)先不必輕舉妄動(dòng)。沒(méi)想到引起一些爭(zhēng)論，特此澄清一下。7號(hào)就看到阿里巴巴SEO國(guó)平的博客帖子，以及他在我博客的留言，他認(rèn)為我誤解了Matt Cu

Public @ 2013-12-05 16:04:44

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:0.021756s ] mysql:dbname=briline.net;host=106.14.77.182;port=3306;charset=utf8
[ SQL ] SHOW COLUMNS FROM `ob_article` [ RunTime:0.015659s ]
[ SQL ] SELECT * FROM `ob_article` WHERE `id` = 4370 LIMIT 1 [ RunTime:0.014591s ]
[ 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:0.014872s ]
[ 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:0.015167s ]
[ 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:0.015495s ]
[ 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` = 4370 LIMIT 1 [ RunTime:0.014671s ]
[ 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=4370 [ RunTime:0.015406s ]
[ 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:0.021553s ]
[ 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:0.036373s ]
[ 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:0.022488s ]
[ 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:0.032814s ]
[ 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', ) ]

0.442926s

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Categories

Tags

Nofollow使用示例

原來(lái)404頁(yè)面可以這樣做

博客網(wǎng)站導(dǎo)航的制作

nofollow標(biāo)簽的作用有重大變化

nofollow是否會(huì)浪費(fèi)PR和權(quán)重？

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

Nofollow使用示例

原來(lái)404頁(yè)面可以這樣做

博客網(wǎng)站導(dǎo)航的制作

nofollow標(biāo)簽的作用有重大變化

nofollow是否會(huì)浪費(fèi)PR和權(quán)重？

更多您感興趣的搜索

nofollow是否會(huì)浪費(fèi)PR和權(quán)重？