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nofollow標(biāo)簽的作用有重大變化

nofollow標(biāo)簽最初是由Google引入的，旨在告訴搜索引擎跟蹤鏈接的方式。它的作用是讓網(wǎng)站管理員控制搜索引擎是否跟蹤某個(gè)鏈接并傳遞權(quán)重。也就是說，如果一個(gè)頁面包含了nofollow標(biāo)簽，搜索引擎就不會(huì)將該頁面與被鏈接的頁面相關(guān)聯(lián)，也不會(huì)將該頁面作為鏈接目標(biāo)的一部分考慮。這樣可以避免一些不必要的鏈接傳遞權(quán)重，同時(shí)可以防止人工操縱搜索引擎排名。然而，隨著時(shí)間的推移，nofollow標(biāo)簽的作用發(fā)生了重大變化。自2019年以來，Google已經(jīng)聲明nofollow鏈接可能會(huì)傳遞權(quán)重，但不保證傳遞權(quán)重。這意味著，如果某個(gè)頁面鏈接到其他頁面，即使該鏈接包含nofollow標(biāo)簽，搜索引擎仍然有可能將該頁面與被鏈接的頁面相關(guān)聯(lián)，仍然可能將該頁面作為鏈接目標(biāo)的一部分考慮。因此，nofollow標(biāo)簽已經(jīng)不再是控制搜索引擎是否跟蹤鏈接并傳遞權(quán)重的一種絕對(duì)方法。除此之外，nofollow標(biāo)簽還有一些其他的用途。例如，當(dāng)你將鏈接放置在評(píng)論中時(shí)，為了避免被認(rèn)為是垃圾郵件，在這些鏈接上使用nofollow標(biāo)簽可以避免搜索引擎將這些鏈接作為網(wǎng)站的重要因素考慮。此外，nofollow標(biāo)簽也可以用于避免搜索引擎跟蹤一些敏感信息或不可靠來源的鏈接，以保護(hù)用戶隱私和安全?？傊?，nofollow標(biāo)簽的作用在某種程度上已經(jīng)發(fā)生了變化，但它仍然是一種很重要的工具，可以幫助網(wǎng)站管理員控制搜索引擎發(fā)現(xiàn)和跟蹤鏈接的方式。

Public @ 2023-06-05 14:00:19

Sitemap介紹

對(duì)于網(wǎng)站中希望360搜索抓取的網(wǎng)頁url，站長(zhǎng)可以將其制作成標(biāo)準(zhǔn)的Sitemap（站點(diǎn)地圖）文件。站長(zhǎng)提交后Sitemap文件后，360搜索會(huì)使用Sitemap中的內(nèi)容來了解網(wǎng)站結(jié)構(gòu)等信息，有助于今后更全面、更快速地對(duì)網(wǎng)站進(jìn)行抓取。但我們不保證一定會(huì)抓取及索引Sitemap中所有網(wǎng)址，也不保證其在搜索結(jié)果中的排名。點(diǎn)此提交Sitemap網(wǎng)址

Public @ 2014-04-17 16:11:52

網(wǎng)站內(nèi)部鏈接策略

1. 鏈接分類將鏈接分為主要鏈接和次要鏈接。主要鏈接包括頁面的主要導(dǎo)航鏈接、重要內(nèi)容頁面鏈接等，次要鏈接包括頁腳鏈接、側(cè)邊欄鏈接等。主要鏈接應(yīng)該占據(jù)網(wǎng)站內(nèi)部鏈接總數(shù)的絕大部分，次要鏈接數(shù)量較少。 2. 內(nèi)部鏈接錨文本內(nèi)部鏈接錨文本應(yīng)該描述被鏈接頁面的內(nèi)容，而非簡(jiǎn)單地使用諸如“點(diǎn)擊這里”等通用詞匯。這有助于提高頁面的信息結(jié)構(gòu)和搜索引擎的理解。 3. 內(nèi)鏈關(guān)聯(lián) 通過內(nèi)鏈將相關(guān)頁面的內(nèi)容鏈

Public @ 2023-06-23 18:00:15

nofollow標(biāo)簽的作用有重大變化

自nofollow標(biāo)簽于2005年推出以來，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)通過在其他站點(diǎn)上發(fā)布大量鏈接來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?，F(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

內(nèi)部鏈接nofollow控制權(quán)重分布

Nofollow屬性推出以后，Matt Cutts多次說過，nofollow既可以用在論壇，博客等的留言中，代表這些鏈接不是站長(zhǎng)能控制和背書的，也可以用在某些內(nèi)部鏈接，以達(dá)到控制內(nèi)部鏈接權(quán)重和PR流動(dòng)及分布的目的。最常見的應(yīng)用是在網(wǎng)站聯(lián)系我們，隱私權(quán)政策，用戶條款等鏈接上。這些網(wǎng)頁往往都是整站有鏈接，如果沒有使用nofollow，整站的鏈接權(quán)重都會(huì)平等的流動(dòng)到這些網(wǎng)頁上。而像隱私權(quán)政策這些網(wǎng)頁一般

Public @ 2017-01-19 16:08:47

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[ DB ] CONNECT:[ UseTime:0.023498s ] mysql:dbname=briline.net;host=106.14.77.182;port=3306;charset=utf8
[ SQL ] SHOW COLUMNS FROM `ob_article` [ RunTime:0.016749s ]
[ SQL ] SELECT * FROM `ob_article` WHERE `id` = 8477 LIMIT 1 [ RunTime:0.015788s ]
[ 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:0.016331s ]
[ 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:0.016684s ]
[ 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:0.017938s ]
[ 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` = 8477 LIMIT 1 [ RunTime:0.015989s ]
[ 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+2 where id=8477 [ RunTime:0.029526s ]
[ 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:0.024418s ]
[ 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:0.036857s ]
[ 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:0.022882s ]
[ 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:0.033133s ]
[ 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', ) ]

0.447590s

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nofollow標(biāo)簽的作用有重大變化

Sitemap介紹

網(wǎng)站內(nèi)部鏈接策略

nofollow標(biāo)簽的作用有重大變化

內(nèi)部鏈接nofollow控制權(quán)重分布

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