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RobotsMETA标签的写法

Robots META标签中没有大小写之分，name="Robots"表示所有的搜索引擎，可以针对某个具体搜索引擎写为name="BaiduSpider"。 content部分有四个指令选项:index、noindex、follow、nofollow，指令间以","分隔。

INDEX 指令告诉搜索机器人抓取该页面;

FOLLOW 指令表示搜索机器人可以沿着该页面上的链接继续抓取下去;

Robots Meta标签的缺省值是INDEX和FOLLOW，只有inktomi除外，对于它，缺省值是INDEX,NOFOLLOW。

这样，一共有四种组合:

<META NAME="ROBOTS" CONTENT="INDEX,FOLLOW">

<META NAME="ROBOTS" CONTENT="NOINDEX,FOLLOW">

<META NAME="ROBOTS" CONTENT="INDEX,NOFOLLOW">

<META NAME="ROBOTS" CONTENT="NOINDEX,NOFOLLOW">

其中

<META NAME="ROBOTS" CONTENT="INDEX,FOLLOW">可以写成<META NAME="ROBOTS" CONTENT="ALL">;

<META NAME="ROBOTS" CONTENT="NOINDEX,NOFOLLOW">可以写成<META NAME="ROBOTS" CONTENT="NONE">

目前看来，绝大多数的搜索引擎机器人都遵守robots.txt的规则，而对于Robots META标签，目前支持的并不多，但是正在逐渐增加，如著名搜索引擎GOOGLE就完全支持，而且GOOGLE还增加了一个指令"archive"，可以限制GOOGLE是否保留网页快照。例如:

<META NAME="googlebot" CONTENT="index,follow,noarchive">

表示抓取该站点中页面并沿着页面中链接抓取，但是不在GOOLGE上保留该页面的网页快照。

来源：360站长平台

Public @ 2019-11-07 16:09:03

Google网站地图Sitemap与搜索引擎优化

Google网站地图Sitemap是一个XML文件，列出了Web站点中的所有页面和链接。这样，搜索引擎可以通过此文件更快地找到和索引您网站上的所有内容。与搜索引擎优化（SEO）有关的是，Sitemap帮助您确保您网站上的所有内容都可以被搜索引擎找到和索引。搜索引擎很可能会错过一些页面或链接，导致这些内容无法出现在用户的搜索结果中。有了Sitemap，您可以告诉搜索引擎哪些页面需要索引，哪些页面

Public @ 2023-06-02 03:00:17

网站内部链接策略

当站长们都在讨论外链的时候，很少有人注意到内链的作用，内链就是网站的内部的相互链接，我认为内链的最主要的作用在于提高搜索引擎索引效率和用户体验，增加PV，除此之外，由于是自己的网站，内链容易控制，有助于PR的传递推动网站排名。博友Fgyb_网民聚焦：对于知名站点的seo而言主要精力应该放在内链的合理布局上，改善搜索引擎的抓取效率，让搜索引擎明白什么内容才是网站的重要的内容。既然内链与外链有着同样重

Public @ 2018-10-24 16:11:27

robots.txt使用教程

用几个最常见的情况，直接举例说明：1. 允许所有SE收录本站：robots.txt为空就可以，什么都不要写。2. 禁止所有SE收录网站的某些目录：User-agent: *Disallow: /目录名1/Disallow: /目录名2/Disallow: /目录名3/3. 禁止某个SE收录本站，例如禁止百度：User-agent: BaiduspiderDisallow: /4. 禁止所有SE收录

Public @ 2013-01-15 16:09:31

Robots.txt 文件应放在哪里？

Robots.txt文件应放在网站的根目录下。

Public @ 2023-06-23 19:50:03

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基本文件流程错误 SQL 调试

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[ DB ] CONNECT:[ UseTime:0.022959s ] mysql:dbname=briline.net;host=106.14.77.182;port=3306;charset=utf8
[ SQL ] SHOW COLUMNS FROM `ob_config` [ RunTime:0.016663s ]
[ SQL ] SELECT * FROM `ob_config` [ RunTime:0.015483s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_config', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 25, 'extra' => NULL, ) ]
[ SQL ] SHOW COLUMNS FROM `ob_hook` [ RunTime:0.016370s ]
[ SQL ] SELECT `id`,`name`,`addon_list` FROM `ob_hook` [ RunTime:0.015413s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_hook', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 3, 'extra' => NULL, ) ]
[ SQL ] SHOW COLUMNS FROM `ob_article` [ RunTime:0.016542s ]
[ SQL ] SELECT * FROM `ob_article` WHERE `id` = 4392 LIMIT 1 [ RunTime:0.015453s ]
[ 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:0.016567s ]
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[ SQL ] select * from `ob_article_tongji` where category_id=12 and mark_type='tags' order by times desc limit 100 [ RunTime:0.015756s ]
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[ SQL ] select * from `ob_article_tongji` where category_id=12 and mark_type='tags' order by rand() limit 30 [ RunTime:0.016220s ]
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[ SQL ] SELECT * FROM `ob_article` WHERE `id` = 4392 LIMIT 1 [ RunTime:0.015235s ]
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[ SQL ] update `ob_article` set views=views+2 where id=4392 [ RunTime:0.019594s ]
[ 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:0.022067s ]
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[ SQL ] SELECT COUNT(*) AS tp_count FROM `ob_article` WHERE `category_id` = 12 AND `tags` = '威海Robots' AND `status` <> -1 LIMIT 1 [ RunTime:0.022406s ]
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