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HTTP狀態(tài)碼301與302有什么區(qū)別

HTTP狀態(tài)碼301和302都是重定向狀態(tài)碼，用來告訴客戶端需要訪問一個(gè)新的URL。它們的區(qū)別在于： 1. 狀態(tài)碼301表示永久重定向，即原始URL永久地不可用，所有訪問該URL的請求都將被重定向到新的URL上。而狀態(tài)碼302表示臨時(shí)重定向，即原始URL只是暫時(shí)不可用，請求將被重定向到一個(gè)臨時(shí)URL上，之后可能會(huì)再次返回原始URL。 2. 由于301表示永久重定向，搜索引擎會(huì)將原始URL的權(quán)重傳遞給新的URL。而302表示臨時(shí)重定向，搜索引擎不會(huì)將原始URL的權(quán)重傳遞給新的URL。 3. 由于301表示永久重定向，瀏覽器可能會(huì)緩存新的URL，以及搜索引擎也會(huì)更長時(shí)間地保留新的URL。而302表示臨時(shí)重定向，瀏覽器和搜索引擎會(huì)更頻繁地訪問原始URL，以確保該URL已經(jīng)恢復(fù)正常。

Public @ 2023-03-27 11:00:20

Zac訪談Matt Cutts

威海seo專題威海seo問答
1274

SEO專家訪談系列剛剛完成第一篇。有的問題比較敏感，Matt Cutts也很忙，所以花了比較長時(shí)間。不過希望大家能覺得等有所值。訪談主要圍繞中文搜索和搜索引擎優(yōu)化。Matt Cutts和Google的“頂級中文反垃圾工程師”， Jianfei（朱健飛），回答了我的問題。當(dāng)然很多問答并不局限于中文搜索和SEO，對所有SEOers都有參考意義。佳倫兄第一個(gè)猜對訪談對象。能否告知郵寄地址，我會(huì)寄件小禮物

Public @ 2009-06-15 16:14:12

什么樣的頁面才是高質(zhì)量的？

本帖子是Google人工質(zhì)量評估員指南介紹的第二篇：Google質(zhì)量評分指南簡介什么樣的頁面才是高質(zhì)量的？什么是E-A-T?（下一貼）在講解頁面質(zhì)量評估和滿足需求評估之前，Google指南詳細(xì)介紹了一個(gè)以前SEO行業(yè)比較少提到的概念：有益目的（beneficial purpose）。后面對頁面和搜索結(jié)果質(zhì)量的評估都是基于這個(gè)概念的。頁面存在的目的一般來說，頁面被創(chuàng)建或存在都是有目的的。從用戶角度，

Public @ 2016-07-17 15:54:42

HTTP狀態(tài)碼301與302有什么區(qū)別

Public @ 2023-03-27 11:00:20

HTTP狀態(tài)碼301與302有什么區(qū)別

301和302都是HTTP重定向狀態(tài)碼的一種，它們的區(qū)別在于重定向的方式不同。 301狀態(tài)碼表示永久性重定向，告訴瀏覽器被請求的資源已經(jīng)被永久性地移動(dòng)到了新的位置并且搜索引擎應(yīng)該更新他們的索引。瀏覽器會(huì)記住這個(gè)重定向，并且在以后的請求中直接訪問新的資源地址。這種方式適用于網(wǎng)站URL結(jié)構(gòu)做出的永久性更改或者將網(wǎng)站遷移至新的域名。 302狀態(tài)碼表示臨時(shí)性重定向，告訴瀏覽器被請求的資源暫時(shí)性地被移動(dòng)

Public @ 2023-06-22 16:00:15

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[ DB ] CONNECT:[ UseTime:0.025330s ] mysql:dbname=briline.net;host=106.14.77.182;port=3306;charset=utf8
[ SQL ] SHOW COLUMNS FROM `ob_config` [ RunTime:0.018183s ]
[ SQL ] SELECT * FROM `ob_config` [ RunTime:0.017245s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_config', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 25, 'extra' => NULL, ) ]
[ SQL ] SHOW COLUMNS FROM `ob_article` [ RunTime:0.018255s ]
[ SQL ] SELECT * FROM `ob_article` WHERE `id` = 6388 LIMIT 1 [ RunTime:0.017232s ]
[ 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:0.017426s ]
[ 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:0.017597s ]
[ 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:0.017748s ]
[ 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` = 6388 LIMIT 1 [ RunTime:0.016984s ]
[ 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=6388 [ RunTime:0.019962s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `ob_article` WHERE `category_id` = 12 AND `cate` = '威海seo專題' AND `status` <> -1 LIMIT 1 [ RunTime:0.025450s ]
[ 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seo專題' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.068398s ]
[ 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301永久重定向,302臨時(shí)重定向' AND `status` <> -1 LIMIT 1 [ RunTime:0.024028s ]
[ 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301永久重定向,302臨時(shí)重定向' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.035633s ]
[ 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', ) ]

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HTTP狀態(tài)碼301與302有什么區(qū)別

Zac訪談Matt Cutts

什么樣的頁面才是高質(zhì)量的？

HTTP狀態(tài)碼301與302有什么區(qū)別

HTTP狀態(tài)碼301與302有什么區(qū)別

更多您感興趣的搜索