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robots非标准扩展协议

Crawl-delay 指令:几大抓取工具支持Crawl-delay参数，设置为多少秒，以等待同服务器之间连续请求，如:

User-agent:

*Crawl-delay:10

来源：360站长平台

Public @ 2017-09-15 16:09:04

301设置：一定要做的集中权重的方法

| 什么是网站301？● 不带www的域名301到带www的域名● 老的链接301给新的链接| 为什么做网站301？● 权重集中● 权重传递| 如何做网站301？● 服务器上，宝塔面板● 服务器技术操作● IDC服务器面板上实现● 网站程序后台实现注：index不用301给主域名；动态URL不用301给伪静态链接。（搜外网）

Public @ 2017-01-20 16:09:38

网站链接该如何优化,链接优化方法

网站链接优化是一个重要的SEO策略。以下是链接优化的一些方法： 1. 内部链接优化：确保您的网站内部链接有关联系，并遵循 URL 结构。 2. 外部链接优化：获得其他网站引用您的链接来提高您网站的权威性。这需要您用有关的关键词来搜索高质量的网站，并通过评论和咨询的方式争取链接。 3. 避免链接购买：从第三方购买链接不仅不利于你的网站高排名的发展，而且违反了搜索引擎优化原则。 4. 去除无效

Public @ 2023-06-07 16:00:15

robots禁止抓取图片

User-agent: *Disallow: .jpg$jpg可以代替为gif，png 等等...来源：360站长平台

Public @ 2023-01-15 16:09:02

robots.txt文件放在哪里?

robots.txt文件放在哪里?robots.txt文件应该放置在网站根目录下。举例来说，当spider访问一个网站（比如 http://www.abc.com）时，首先会检查该网站中是否存在http://www.abc.com/robots.txt这个文件，如果 Spider找到这个文件，它就会根据这个文件的内容，来确定它访问权限的范围。网站 URL相应的 robots.txt的 URLhtt

Public @ 2017-01-09 16:08:57

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基本文件流程错误 SQL 调试

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[ DB ] CONNECT:[ UseTime:0.025327s ] mysql:dbname=briline.net;host=106.14.77.182;port=3306;charset=utf8
[ SQL ] SHOW COLUMNS FROM `ob_article` [ RunTime:0.018401s ]
[ SQL ] SELECT * FROM `ob_article` WHERE `id` = 4394 LIMIT 1 [ RunTime:0.017274s ]
[ 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:0.017687s ]
[ 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:0.017550s ]
[ 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:0.018108s ]
[ 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` = 4394 LIMIT 1 [ RunTime:0.017068s ]
[ 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=4394 [ RunTime:0.018001s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `ob_article` WHERE `category_id` = 12 AND `cate` = '威海网站结构优化' AND `status` <> -1 LIMIT 1 [ RunTime:0.025477s ]
[ 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` = '威海网站结构优化' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.039658s ]
[ 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Robots' AND `status` <> -1 LIMIT 1 [ RunTime:0.024743s ]
[ 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Robots' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.036155s ]
[ 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', ) ]

0.466637s

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