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404頁面是什么？

404頁面是指在網(wǎng)站上訪問某個(gè)不存在的頁面時(shí)，服務(wù)器返回的錯(cuò)誤頁面。一般來說，404頁面會告訴用戶當(dāng)前訪問的頁面不存在，并提供一些相關(guān)鏈接或搜索框，幫助用戶繼續(xù)瀏覽網(wǎng)站。

Public @ 2023-06-06 01:50:05

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，搜索引擎就不會將該頁面與被鏈接的頁面相關(guān)聯(lián)，也不會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

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

關(guān)于URL組成部分的指南

URL（Uniform Resource Locator）是用于定位和訪問互聯(lián)網(wǎng)資源的字符串。URL由多個(gè)組成部分組成，每個(gè)組成部分都提供了關(guān)于資源的有用信息。以下是URL的組成部分： 1.協(xié)議：協(xié)議指定了訪問資源的規(guī)則和方法。常見的協(xié)議有HTTP、HTTPS、FTP、SFTP等。例如：http://www.example.com 2.主機(jī)名（域名）：主機(jī)名指定了要訪問資源的服務(wù)器的名稱。通

Public @ 2023-06-11 16:00:19

404頁面該怎么做？

404頁面的目的是：告訴瀏覽者其所請求的頁面不存在或鏈接錯(cuò)誤，同時(shí)引導(dǎo)用戶使用網(wǎng)站其他頁面而不是關(guān)閉窗口離開。很多開源系統(tǒng)如CMS系統(tǒng)、Blog系統(tǒng)等不提供404頁面或提供的404頁面并未達(dá)到SEO的要求，這讓網(wǎng)站的權(quán)威性大打折扣。404頁面該達(dá)到怎么樣的效果才符合SEO要求？搜索引擎通過HTTP狀態(tài)碼來識別網(wǎng)頁的狀態(tài)。當(dāng)搜索引擎獲得了一個(gè)錯(cuò)誤鏈接時(shí)，網(wǎng)站應(yīng)該返回404狀態(tài)碼，告訴搜索引擎放棄對該

Public @ 2013-11-20 16:09:59

404頁面是什么？

Public @ 2023-06-06 01:50:05

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基本文件流程錯(cuò)誤 SQL 調(diào)試

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[ DB ] CONNECT:[ UseTime:0.025168s ] mysql:dbname=briline.net;host=106.14.77.182;port=3306;charset=utf8
[ SQL ] SHOW COLUMNS FROM `ob_article` [ RunTime:0.018285s ]
[ SQL ] SELECT * FROM `ob_article` WHERE `id` = 8500 LIMIT 1 [ RunTime:0.017081s ]
[ 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:0.017583s ]
[ 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:0.017625s ]
[ 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:0.018454s ]
[ 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` = 8500 LIMIT 1 [ RunTime:0.016935s ]
[ 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=8500 [ RunTime:0.018507s ]
[ 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:0.024701s ]
[ 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` = '威海網(wǎng)站結(jié)構(gòu)優(yōu)化' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.039581s ]
[ 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404頁面' AND `status` <> -1 LIMIT 1 [ RunTime:0.027789s ]
[ 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404頁面' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.036311s ]
[ 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', ) ]

0.532584s

Categories

Tags

404頁面是什么？

nofollow標(biāo)簽的作用有重大變化

關(guān)于URL組成部分的指南

404頁面該怎么做？

404頁面是什么？

更多您感興趣的搜索

Categories

Tags

404頁面是什么？

nofollow標(biāo)簽的作用有重大變化

關(guān)于URL組成部分的指南

404頁面該怎么做？

404頁面是什么？

更多您感興趣的搜索

404頁面該怎么做？

404頁面是什么？