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Google PR劫持是一種黑客攻擊方式，指的是攻擊者通過(guò)某種手段修改了網(wǎng)站頁(yè)面的PageRank值，以提高自己的站點(diǎn)排名或降低競(jìng)爭(zhēng)對(duì)手的排名。具體來(lái)說(shuō)，攻擊者會(huì)通過(guò)篡改網(wǎng)站鏈接或利用重定向等方式，將莫名其妙的外鏈指向目標(biāo)網(wǎng)站，從而提高目標(biāo)網(wǎng)站的PR值。這種攻擊對(duì)于網(wǎng)站所有者來(lái)說(shuō)是極為危險(xiǎn)的，因?yàn)樗赡軐?dǎo)致網(wǎng)站在搜索引擎結(jié)果中的排名受到影響，嚴(yán)重的甚至?xí)凰阉饕鎽土P或封禁。為了避免這種情況發(fā)生，網(wǎng)站所有者應(yīng)該定期檢測(cè)自己的網(wǎng)站PR值，警惕不明來(lái)源的外鏈或異常跳轉(zhuǎn)，及時(shí)防范和修復(fù)漏洞。

Public @ 2023-06-27 00:50:12

HITS鏈接分析算法

威海鏈接原理威海HITS算法
1337

HITS（Hyperlink-Induced Topic Search）是一種基于鏈接的搜索引擎排名算法，與其他排名算法如PageRank一樣，它的主要目的是將用戶查詢與集合的文檔匹配，使得最相關(guān)的文檔被檢索出來(lái)，排在前面。事實(shí)上，網(wǎng)頁(yè)根據(jù)網(wǎng)頁(yè)內(nèi)部和外部因素來(lái)排序。HITS算法包括兩個(gè)重要指標(biāo)：Authority和Hub，體現(xiàn)網(wǎng)頁(yè)的相關(guān)性，指導(dǎo)搜索引擎排序，即把相關(guān)性高的網(wǎng)頁(yè)排在前面。 HI

Public @ 2023-03-02 20:01:00

Google鏈接分析專利

商業(yè)周刊今天發(fā)表一篇文章談搜索引擎市場(chǎng)的競(jìng)爭(zhēng)情況。Matt Cutts很快發(fā)了個(gè)貼子評(píng)論了下。搜索引擎各自的商業(yè)模式，關(guān)注點(diǎn)和優(yōu)缺點(diǎn)就不多說(shuō)了。引起我興趣的是Matt Cutts特意提到一個(gè)Google鏈接分析的專利。這個(gè)專利是Google在2001年申請(qǐng)，2003年2月批準(zhǔn)的，美國(guó)專利號(hào)號(hào)6526440。Google和其他搜索引擎公司都有大把的專利，但拿出來(lái)談的很少，哪些已經(jīng)用在排名算法里外人就

Public @ 2017-10-08 16:21:56

PageRank（PR值）

威海鏈接原理威海PR
703

PageRank是沉迷Google的人們用來(lái)測(cè)驗(yàn)其站點(diǎn)在Google中的排名的一種衡量規(guī)范，SEO和查找引擎營(yíng)銷（SEM）專家也運(yùn)用這個(gè)術(shù)語(yǔ)描繪網(wǎng)頁(yè)在SERP中的排名以及Google依據(jù)排名算法給予站點(diǎn)的分?jǐn)?shù)，無(wú)論怎么界說(shuō)，PageRank都是SEO的重要部分。

Public @ 2010-02-23 15:39:10

Google PR 值是什么？怎樣計(jì)算？

威海鏈接原理威海PR
845

相信對(duì)SEO感興趣的人，都聽說(shuō)過(guò)Google PR值，英文全稱是PageRank，縮寫為PR，中文通常稱為網(wǎng)頁(yè)級(jí)別。所謂Google PR，是由 Google的兩位創(chuàng)始人Larry Page 和 Sergey Brin 在斯坦福大學(xué)開發(fā)的衡量網(wǎng)頁(yè)重要性的一個(gè)指標(biāo)。樸素的思路是，一個(gè)網(wǎng)頁(yè)導(dǎo)入鏈接越多，頁(yè)面應(yīng)該就更重要，所以PR值就越高。PR可以理解為頁(yè)面之間的投票行為，網(wǎng)頁(yè)A鏈接到網(wǎng)頁(yè)B時(shí)，Goog

Public @ 2018-11-18 15:39:03

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基本文件流程錯(cuò)誤 SQL 調(diào)試

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[ DB ] CONNECT:[ UseTime:0.021617s ] mysql:dbname=briline.net;host=106.14.77.182;port=3306;charset=utf8
[ SQL ] SHOW COLUMNS FROM `ob_article` [ RunTime:0.014734s ]
[ SQL ] SELECT * FROM `ob_article` WHERE `id` = 9481 LIMIT 1 [ RunTime:0.029271s ]
[ 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:0.014153s ]
[ 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:0.014438s ]
[ 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:0.014751s ]
[ 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` = 9481 LIMIT 1 [ RunTime:0.014099s ]
[ 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=9481 [ RunTime:0.014901s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `ob_article` WHERE `category_id` = 12 AND `cate` = '威海鏈接原理' AND `status` <> -1 LIMIT 1 [ RunTime:0.021636s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 8035, 'extra' => 'Using where', ) ]
[ SQL ] SELECT * FROM `ob_article` WHERE `category_id` = 12 AND `cate` = '威海鏈接原理' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.035446s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 8035, 'extra' => 'Using where; Using temporary; Using filesort', ) ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `ob_article` WHERE `category_id` = 12 AND `tags` = '威海PR' AND `status` <> -1 LIMIT 1 [ RunTime:0.020959s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 8035, 'extra' => 'Using where', ) ]
[ SQL ] SELECT * FROM `ob_article` WHERE `category_id` = 12 AND `tags` = '威海PR' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.031104s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 8035, 'extra' => 'Using where; Using temporary; Using filesort', ) ]

0.474639s

Categories

Tags

Google PR劫持

HITS鏈接分析算法

Google鏈接分析專利

PageRank（PR值）

Google PR 值是什么？怎樣計(jì)算？

更多您感興趣的搜索

Categories

Tags

Google PR劫持

HITS鏈接分析算法

Google鏈接分析專利

PageRank（PR值）

Google PR 值是什么？怎樣計(jì)算？

更多您感興趣的搜索

Google PR 值是什么？怎樣計(jì)算？