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叨叨死鏈這回事兒

叨叨死鏈?zhǔn)侵冈诨ヂ?lián)網(wǎng)上的一種現(xiàn)象，即某個(gè)鏈接已經(jīng)失效，無(wú)法正常訪問(wèn)或跳轉(zhuǎn)到目標(biāo)網(wǎng)頁(yè)或資源。叨叨死鏈可能是由于目標(biāo)網(wǎng)頁(yè)刪除、網(wǎng)頁(yè)重構(gòu)導(dǎo)致鏈接改變或輸入錯(cuò)誤等原因造成的。叨叨死鏈在互聯(lián)網(wǎng)上比較常見(jiàn)，特別是在一些較老的或不經(jīng)常維護(hù)的網(wǎng)站上。這些死鏈會(huì)給用戶帶來(lái)不便，尤其當(dāng)用戶點(diǎn)擊一個(gè)鏈接時(shí)，期望能夠直接訪問(wèn)相關(guān)內(nèi)容，卻發(fā)現(xiàn)鏈接已經(jīng)失效，無(wú)法打開(kāi)目標(biāo)頁(yè)面。對(duì)于網(wǎng)站所有者來(lái)說(shuō)，及時(shí)修復(fù)死鏈?zhǔn)潜３志W(wǎng)站良好用戶體驗(yàn)的重要舉措。網(wǎng)站所有者可以通過(guò)網(wǎng)站分析工具等手段，及時(shí)檢測(cè)到死鏈，并進(jìn)行修復(fù)或更新鏈接。同時(shí)，定期對(duì)網(wǎng)站進(jìn)行維護(hù)和更新，確保鏈接的有效性，有助于提升網(wǎng)站的可用性和用戶滿意度。

Public @ 2023-07-21 00:50:23

ETag使用效果對(duì)比&;經(jīng)驗(yàn)分享

ETag是一種HTTP協(xié)議中的實(shí)體標(biāo)簽，用于標(biāo)記某個(gè)資源的版本號(hào)。它在瀏覽器與服務(wù)器之間起到了緩存控制的作用，提高了網(wǎng)頁(yè)的加載速度和用戶的瀏覽體驗(yàn)。下面是ETag使用效果對(duì)比和經(jīng)驗(yàn)分享： 1. 提高緩存命中率：當(dāng)用戶再次訪問(wèn)同一資源時(shí)，瀏覽器會(huì)向服務(wù)器發(fā)送請(qǐng)求，服務(wù)器會(huì)比較資源的ETag值與請(qǐng)求頭中的If-None-Match值是否一致。如果一致，則返回狀態(tài)碼304 Not Modified，表

Public @ 2023-07-21 06:50:49

百度robots中的user-agent

百度各個(gè)產(chǎn)品使用不同的user-agent:無(wú)線搜索Baiduspider-mobile圖片搜索Baiduspider-image視頻搜索Baiduspider-video新聞搜索Baiduspider-news百度搜藏Baiduspider-favo百度聯(lián)盟Baiduspider-cpro商務(wù)搜索Baiduspider-ads網(wǎng)頁(yè)以及其他搜索Baiduspider來(lái)源：360站長(zhǎng)平臺(tái)

Public @ 2022-11-11 16:09:02

如何使用死鏈工具

第一步，處理網(wǎng)站已存在的死鏈，制作死鏈文件篩查網(wǎng)站內(nèi)部存在的死鏈，并將這些死鏈頁(yè)面設(shè)置成為404頁(yè)面，即百度訪問(wèn)它們時(shí)返回404代碼。將需提交的死鏈列表制作成一個(gè)死鏈文件，制作方法請(qǐng)參閱幫助文檔：http://www.baidu.com/search/sitemap_help.html（與sitemap格式及制作方法一致）第二步，將死鏈文件放置在網(wǎng)站根目錄下比如您的網(wǎng)站為example.com，您

Public @ 2009-05-24 15:36:49

新浪死鏈處理經(jīng)驗(yàn)分享

在第四次深“度”接觸結(jié)束后，spider工程師表示新浪的死鏈處理工作一直效果不錯(cuò)，提醒學(xué)堂應(yīng)該請(qǐng)其做個(gè)分享。新浪穩(wěn)座國(guó)家級(jí)門(mén)戶頭把交椅，誰(shuí)還敢說(shuō)自己網(wǎng)站結(jié)構(gòu)的復(fù)雜程度可以超越新浪。于是我們請(qǐng)王久明分享一下新浪在死鏈處理和死鏈預(yù)防（重要頁(yè)面因修改而產(chǎn)生死鏈）方面的經(jīng)驗(yàn)。一、在以下背景下會(huì)較多產(chǎn)生死鏈：1、時(shí)政新聞的敏感性；2、來(lái)自監(jiān)管的刪除需求；3、頻道(編輯)自身刪改的需求；4、搜索方期望資源方主

Public @ 2013-02-21 15:36:49

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[ DB ] CONNECT:[ UseTime:0.023527s ] mysql:dbname=briline.net;host=106.14.77.182;port=3306;charset=utf8
[ SQL ] SHOW COLUMNS FROM `ob_article` [ RunTime:0.016818s ]
[ SQL ] SELECT * FROM `ob_article` WHERE `id` = 9691 LIMIT 1 [ RunTime:0.016173s ]
[ 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:0.016497s ]
[ 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:0.016717s ]
[ 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:0.017323s ]
[ 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` = 9691 LIMIT 1 [ RunTime:0.023383s ]
[ 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=9691 [ RunTime:0.022083s ]
[ 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:0.022901s ]
[ 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:0.048146s ]
[ 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` = '威海死鏈' AND `status` <> -1 LIMIT 1 [ RunTime:0.026483s ]
[ 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` = '威海死鏈' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.041645s ]
[ 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', ) ]

0.470573s