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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

Sitemap 中的网址需要完整地指定吗？

是的，必须完整的指定Sitemap 中的网址，包括完整的协议（HTTP 或 HTTPS）和主机名（主机名或IP），并以“/”开始。

Public @ 2023-02-27 04:48:08

站点地图是什么

站点地图是一个网站所有链接的容器。很多网站的连接层次比较深，爬虫很难抓取到，站点地图可以方便爬虫抓取网站页面，通过抓取网站页面，清晰了解网站的架构，网站地图一般存放在根目录下并命名sitemap，为爬虫指路，增加网站重要内容页面的收录。站点地图就是根据网站的结构、框架、内容，生成的导航网页文件。站点地图对于提高用户体验有好处，它们为网站访问者指明方向，并帮助迷失的访问者找到他们想看的页面。站点地图

Public @ 2013-03-27 16:11:51

robots.txt文件放在哪里?

robots.txt文件通常放在网站的根目录下，即与主页文件（如index.html）同一级目录下。例如，如果网站的域名是www.example.com，那么robots.txt文件的完整路径可能是www.example.com/robots.txt。

Public @ 2023-06-29 06:00:06

robots里这样写，就能避免蜘蛛爬这个“index.htm”这个首页？

威海seo专题威海Robots
2003

我robots这样写是不是就能避免蜘蛛爬这个“index.htm”这个首页？User-agent: *Disallow: /index.htm11-30.我的index.htm是现在默认的首页，想屏蔽蜘蛛抓取。让蜘蛛爬另一个文档，主要是规避备案巡查我的网站和我备案的不一样，服务器那边要求改，我就整了个htm文档来规避下。写法没有问题。但正常的不建议屏蔽首页地址，，“index.htm”这个后缀地址

Public @ 2019-12-16 16:09:25

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基本文件流程错误 SQL 调试

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[ DB ] CONNECT:[ UseTime:0.023515s ] mysql:dbname=briline.net;host=106.14.77.182;port=3306;charset=utf8
[ SQL ] SHOW COLUMNS FROM `ob_article` [ RunTime:0.016772s ]
[ SQL ] SELECT * FROM `ob_article` WHERE `id` = 4394 LIMIT 1 [ RunTime:0.015833s ]
[ 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:0.016222s ]
[ 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:0.016228s ]
[ 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:0.016533s ]
[ 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:0.015694s ]
[ 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=4394 [ RunTime:0.016770s ]
[ 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:0.022558s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 9562, '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:0.036587s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 9562, '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:0.023119s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 9562, '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:0.032479s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 9562, 'extra' => 'Using where; Using temporary; Using filesort', ) ]

0.424736s

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