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死链是如何形成的

值得注意的是，死链接并不是错误链接，错误链接是由于用户输入网址错误而根本不存在的链接。死链接则并不出一出现就是“死”的，它是曾经正常的链接，由于某种原因导致现在失效的链接。

Public @ 2019-02-26 15:56:20

网站里的图片应该如何优化

以下是对网站图片优化的一些技巧： 1. 文件格式：选择合适的文件格式，比如 JPEG、PNG 或 GIF。JPEG 适用于照片和复杂图像，PNG 适用于简单图像，如图标和标志，GIF 将动画和卡通和简单的图像呈现得很好。 2. 图像压缩：使用压缩工具，如 Photoshop 的 Save for Web 功能，来压缩图片并减小文件大小，以便更快地加载。 3. 图片尺寸：使用适当的尺寸显示图片

Public @ 2023-06-06 23:50:14

如何设置canonical标签

canonical标签应该放置于页面的head里，代码示例如下：

Public @ 2023-02-25 03:36:05

死链工具

威海seo技术提升威海死链
1819

死链是指链接到的网页不存在或已被删除，因此无法正常访问。死链工具是指用于检测和修复网站中存在的死链接问题的软件或在线服务。以下是几种常用的死链工具： 1. Xenu's Link Sleuth：免费的桌面应用程序，可快速扫描网站中的死链接问题，并提供详细的报告。 2. Broken Link Checker：WordPress插件，用于扫描网站中所有页面和帖子的死链接，并提供实时通知和修复选项

Public @ 2023-04-25 21:50:18

死链接

威海seo术语威海死链
2169

死链接即指指向的网页或资源已不存在或无法打开的链接，也称为坏链接、失效链接或无效链接。这些链接在网站优化和使用过程中都是不利的，会影响用户体验及搜索引擎排名。维护良好的站内链接和外部链接，删除或修复死链接是很重要的网站优化操作。

Public @ 2023-06-02 12:50:10

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基本文件流程错误 SQL 调试

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[ DB ] CONNECT:[ UseTime:0.030737s ] mysql:dbname=briline.net;host=106.14.77.182;port=3306;charset=utf8
[ SQL ] SHOW COLUMNS FROM `ob_article` [ RunTime:0.021584s ]
[ SQL ] SELECT * FROM `ob_article` WHERE `id` = 3187 LIMIT 1 [ RunTime:0.020607s ]
[ 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:0.020844s ]
[ 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:0.021286s ]
[ 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:0.021279s ]
[ 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` = 3187 LIMIT 1 [ RunTime:0.020794s ]
[ 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=3187 [ RunTime:0.021521s ]
[ 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:0.027884s ]
[ 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:0.038738s ]
[ 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:0.027941s ]
[ 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:0.037452s ]
[ 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', ) ]

0.529322s

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