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Canonical標(biāo)簽與301的區(qū)別

Canonical標(biāo)簽與301的區(qū)別】

1，在幾個(gè)網(wǎng)頁內(nèi)容完全相同（或高度相似）的時(shí)候，如果希望兩個(gè)網(wǎng)頁都可以被用戶正常訪問到，就使用Canonical標(biāo)簽；如果僅讓用戶訪問其中的一個(gè)，直接使用301跳轉(zhuǎn)更方便。

來源：百度搜索資源平臺(tái) 百度搜索學(xué)堂

Public @ 2017-12-08 16:11:16

301永久重定向是一種HTTP狀態(tài)碼，使瀏覽器或搜索引擎知道該網(wǎng)頁已永久移動(dòng)到另一個(gè)網(wǎng)址。這種重定向通常用于網(wǎng)站重新設(shè)計(jì)、更改域名或更改URL結(jié)構(gòu)的情況下。它會(huì)直接跳轉(zhuǎn)到新的網(wǎng)址，而不是像302臨時(shí)重定向那樣保留原始URL。301永久重定向可以保持網(wǎng)站的搜索引擎排名和鏈接值，并幫助用戶找到正確的網(wǎng)頁，提高用戶體驗(yàn)。

Public @ 2023-04-07 06:00:13

鏈接深度的具體作用

增加內(nèi)頁權(quán)重雖然，鏈接深度是網(wǎng)站的內(nèi)部頁面之間的鏈接，但如果這種內(nèi)部鏈接達(dá)到一定的數(shù)量而且這一數(shù)量更是有質(zhì)量的時(shí)候，那么網(wǎng)站內(nèi)部頁面的權(quán)重將會(huì)有極大的提升，隨之而來的也是內(nèi)部頁面在搜索引擎搜索結(jié)果中排名的提升。有的時(shí)候我們可能會(huì)發(fā)現(xiàn)，某一網(wǎng)站內(nèi)部頁面在某一特定關(guān)鍵詞下，在搜索引擎中排名會(huì)比首頁要高得多，有可能就是這一頁面的鏈接深度有“量”又有“質(zhì)”造成的。增加首頁權(quán)重由于網(wǎng)站的權(quán)重、PR值具有傳遞

Public @ 2016-06-12 16:11:34

再談Canonical標(biāo)簽

Canonical標(biāo)簽是用于指定網(wǎng)頁主要內(nèi)容的URL地址。它是一種標(biāo)記語言標(biāo)簽，通過這個(gè)標(biāo)簽，可以告訴搜索引擎要把多個(gè)類似內(nèi)容的頁面合并成一個(gè)主要內(nèi)容相同的頁面，減少搜索引擎對(duì)同一內(nèi)容的多個(gè)頁面進(jìn)行索引，避免重復(fù)內(nèi)容的出現(xiàn)。通過設(shè)置Canonical標(biāo)簽，可以提高網(wǎng)站的SEO效果，降低網(wǎng)站被搜索引擎降權(quán)的風(fēng)險(xiǎn)。同時(shí)，Canonical標(biāo)簽也有利于網(wǎng)站內(nèi)部鏈接的優(yōu)化，提高網(wǎng)頁被搜索引擎收錄的幾率。

Public @ 2023-04-25 07:00:06

能否利用canonical標(biāo)簽陷害競(jìng)爭(zhēng)對(duì)手？

不能。Canonical標(biāo)簽的作用是幫助搜索引擎正確識(shí)別源代碼當(dāng)中只有部分網(wǎng)頁上相同內(nèi)容的頁面，它不能用于欺詐或破壞搜索引擎算法。Canonical標(biāo)簽可以幫助提高搜索排名，但它不能損害競(jìng)爭(zhēng)對(duì)手或陷害競(jìng)爭(zhēng)對(duì)手。

Public @ 2023-02-25 19:24:11

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[ DB ] CONNECT:[ UseTime:0.025578s ] mysql:dbname=briline.net;host=106.14.77.182;port=3306;charset=utf8
[ SQL ] SHOW COLUMNS FROM `ob_article` [ RunTime:0.018498s ]
[ SQL ] SELECT * FROM `ob_article` WHERE `id` = 4544 LIMIT 1 [ RunTime:0.017519s ]
[ 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:0.017690s ]
[ 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:0.017744s ]
[ 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:0.018149s ]
[ 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` = 4544 LIMIT 1 [ RunTime:0.017311s ]
[ 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=4544 [ RunTime:0.020555s ]
[ 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:0.024281s ]
[ 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:0.037645s ]
[ 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canonical' AND `status` <> -1 LIMIT 1 [ RunTime:0.025495s ]
[ 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canonical' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.033734s ]
[ 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', ) ]

0.460757s

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Canonical標(biāo)簽與301的區(qū)別

301永久重定向作用

鏈接深度的具體作用

再談Canonical標(biāo)簽

能否利用canonical標(biāo)簽陷害競(jìng)爭(zhēng)對(duì)手？

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