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robot 禁止抓取图片

User-agent: *

Disallow: .jpg$

jpg可以代替为gif，png 等等...

Public @ 2020-04-11 16:09:30

ETag使用效果对比&;经验分享

ETag是一种HTTP协议中的实体标签，用于标记某个资源的版本号。它在浏览器与服务器之间起到了缓存控制的作用，提高了网页的加载速度和用户的浏览体验。下面是ETag使用效果对比和经验分享： 1. 提高缓存命中率：当用户再次访问同一资源时，浏览器会向服务器发送请求，服务器会比较资源的ETag值与请求头中的If-None-Match值是否一致。如果一致，则返回状态码304 Not Modified，表

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

将老域名跳转到新域名，是仅首页301就可以了？还是必须所有页面301?

将老域名跳转到新域名，是仅首页301就可以了？还是必须所有页面301?答：必须所有页面301至新域名的相应页面。来源：百度搜索资源平台百度搜索学堂

Public @ 2023-01-01 16:09:06

Robots.txt 文件应放在哪里？

obots.txt 文件必须放在网站的根目录。放在子目录的 Robots.txt 文件搜索引擎不能爬取到，所以不会起任何作用。如：https://www.seowhy.com/robots.txt 是有效的。https://www.seowhy.com/a/robots.txt 是无效的。以下3种情况需要注意：1、如果手机网站采用的是m.的二级域名，要给手机网

Public @ 2018-08-20 16:09:23

玩转robots协议

2013年2月8日北京市第一中级人民法院正式受理了百度诉奇虎360违反“Robots协议”抓取、复制其网站内容的不正当竞争行为一案，索赔金额高达一亿元，这可以看做2012年下半年“3B大战”的继续。在此次索赔案件中，百度称自己的Robots文本中已设定不允许360爬虫进入，而360的爬虫依然对“百度知道”、“百度百科”等百度网站内容进行抓取。其实早在2012年11月初，针对双方摩擦加剧的情况，在中

Public @ 2019-05-13 16:09:21

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基本文件流程错误 SQL 调试

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[ DB ] CONNECT:[ UseTime:0.026154s ] mysql:dbname=briline.net;host=106.14.77.182;port=3306;charset=utf8
[ SQL ] SHOW COLUMNS FROM `ob_article` [ RunTime:0.018685s ]
[ SQL ] SELECT * FROM `ob_article` WHERE `id` = 4447 LIMIT 1 [ RunTime:0.017713s ]
[ 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:0.018133s ]
[ 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:0.018344s ]
[ 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:0.018714s ]
[ 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` = 4447 LIMIT 1 [ RunTime:0.017574s ]
[ 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=4447 [ RunTime:0.018426s ]
[ 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:0.025167s ]
[ 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:0.038432s ]
[ 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:0.025092s ]
[ 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:0.043994s ]
[ 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', ) ]

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