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如何处理死链

404错误页面：很多站长会选择做一个404页面，来引导用户去其他页面。但是为死链制作404页面只是为了引导用户去其他内容页面，却没有真正解决死链的问题，因为搜索引擎爬虫并没有放弃抓取死链，依然存在着资源浪费和降权的危险。

提交死链：打开百度站长平台，左侧有一个死链提交通道。但千万要注意，robots.txt不要屏蔽这些死链，因为既然要提交给搜索引擎，那么爬虫就会去检查，如果被屏蔽了，爬虫会抓取不到，提交也就没有意义了。

屏蔽死链：可以将死链整理在文档中，然后将robots.txt上传到网站根目录即可实现对死链接的屏蔽。

Public @ 2010-04-30 15:56:18

Alt标签和Title标签的区别在和使用讲解

Alt标签和Title标签是用于优化和完善网页的两个重要元素，它们的区别如下： 1. Alt标签：Alt标签是用于给图片添加描述性文字的标签。当图片无法显示时，浏览器会显示Alt标签中的文字内容，这样有助于用户了解图片的内容和意义。Alt标签对于视觉障碍者来说也非常重要，屏幕阅读器可以朗读Alt标签内容，使他们能够了解图片的内容。此外，搜索引擎也会根据Alt标签来理解图片的内容，从而对网页进行排

Public @ 2023-07-30 12:50:32

网站页面优化策略

一、网站页面优化原则 1、简洁明了：网页面要简洁，内容不宜过多，一篇文章内容尽量保持在500字以内，视频不宜太长，照片不宜太多，把无关的内容剔除，也不要在页面添加太多的banner等元素。 2、视觉体验：网页面的色彩设计要有让访客短时间内就能清晰抓取要点的设计，不宜过重的色彩搭配，要挑选适合的色彩使网站适应不同的浏览环境；字体要清晰，把重点内容以特殊字体来强调，布局简洁，要保证必要内容有良

Public @ 2023-03-05 09:00:50

死链工具

- [SEMRUSH 工具](https://www.semrush.com/) - [Google 官方 Search Console 死链工具](https://search.google.com/search-console/links) - [Dead Link Checker](https://www.deadlinkchecker.com/) - [Linkstory](https

Public @ 2023-03-01 20:48:06

死链接

威海seo术语威海死链
1154

死链接是指因为网页被删除、链接被更改等原因，造成访问该链接时出现404错误页面，无法正常访问的超链接。通常死链接会对网站的用户体验和搜索引擎优化产生不良影响，因此网站管理员需要及时找出并修复死链接。

Public @ 2023-04-01 14:50:10

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基本文件流程错误 SQL 调试

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[ DB ] CONNECT:[ UseTime:0.024281s ] mysql:dbname=briline.net;host=106.14.77.182;port=3306;charset=utf8
[ SQL ] SHOW COLUMNS FROM `ob_article` [ RunTime:0.017150s ]
[ SQL ] SELECT * FROM `ob_article` WHERE `id` = 3184 LIMIT 1 [ RunTime:0.016212s ]
[ 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:0.016781s ]
[ 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:0.016899s ]
[ 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:0.017321s ]
[ 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` = 3184 LIMIT 1 [ RunTime:0.016343s ]
[ 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=3184 [ RunTime:0.017290s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `ob_article` WHERE `category_id` = 12 AND `cate` = '威海网站页面优化' AND `status` <> -1 LIMIT 1 [ RunTime:0.022034s ]
[ 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` = '威海网站页面优化' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.034187s ]
[ 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` = '威海死链' AND `status` <> -1 LIMIT 1 [ RunTime:0.023783s ]
[ 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` = '威海死链' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.039474s ]
[ 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', ) ]

0.463325s

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