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百度提示图片重定向是怎么回事？

这是因为港台主机在国内访问较慢，为提升访问速度，我司对图片增加了国内缓存的原因，有利于网站打开的速度。对搜索引擎和用户访问均没有不利影响。图片url地址会变成*.img.800cdn.com/图片.jpg 。

一些检测工具如百度会认为301影响访问速度，而实际上我们对图片301到国内是为了增加访问速度的。

来源：西部数码

Public @ 2011-05-16 16:00:34

如何让搜索引擎抓取AJAX内容？

威海网站建设威海seo
2824

要让搜索引擎抓取AJAX内容，您可以采取以下几种方法： 1. 使用预渲染技术（prerendering）：这种方法是在服务器端将网页的AJAX内容预先渲染为HTML，并将其返回给搜索引擎爬虫。这样搜索引擎爬虫就能够抓取到完整的页面内容。 2. 使用服务端渲染（server-side rendering）：将AJAX内容放在服务器端进行渲染，生成完整的HTML页面后返回给搜索引擎爬虫。这种方法需

Public @ 2023-07-24 04:00:29

经典正则表达式

1. 匹配电子邮件的regex： ``` [a-zA-Z0-9-_\.]+@[a-zA-Z0-9-_\.]+\.[a-zA-Z]+ ``` 2. 匹配IP地址的regex： ``` \b((25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)(\.|$)){4}\b ``` 3. 匹配html标签的regex： ``` ]*>(.*?) ```

Public @ 2023-03-03 20:00:11

如何选择合适的虚拟主机

选择合适的虚拟主机需要考虑以下因素： 1.网站流量和访问量：确定预计的网站流量和访问量，以选择适合的服务器资源。 2.操作系统：选择适合的操作系统，如Windows或Linux，取决于您的应用程序需要哪种操作系统。 3.存储容量和带宽：根据预计的流量和访问量来预估您的存储和带宽需求，以选择适合的计划。 4.可靠性和性能：选择稳定和可靠的虚拟主机提供商，以确保您的网站始终可用，且能够处理高访

Public @ 2023-04-19 23:50:25

独立ip虚拟主机有哪些优势？

独立IP虚拟主机的优势主要包括： 1. 独立IP地址：每个独立IP虚拟主机都拥有独立IP地址，不会受到其他网站的影响，访问速度更快、更稳定。 2. 独立安全性：独立IP虚拟主机可以单独设置安全策略，提高了网站的安全性和稳定性。 3. 独立资源：独立IP虚拟主机的CPU、内存和磁盘空间等资源都是独立的，使用的时候不会受到其他网站的影响。 4. 免备案：部分独立IP虚拟主机厂商会提供海外IP，

Public @ 2023-04-27 15:50:17

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[ DB ] CONNECT:[ UseTime:0.022589s ] mysql:dbname=briline.net;host=106.14.77.182;port=3306;charset=utf8
[ SQL ] SHOW COLUMNS FROM `ob_article` [ RunTime:0.016472s ]
[ SQL ] SELECT * FROM `ob_article` WHERE `id` = 3551 LIMIT 1 [ RunTime:0.015325s ]
[ 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:0.015424s ]
[ 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:0.015924s ]
[ 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:0.016170s ]
[ 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` = 3551 LIMIT 1 [ RunTime:0.015250s ]
[ 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=3551 [ RunTime:0.016103s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `ob_article` WHERE `category_id` = 12 AND `cate` = '威海网站建设' AND `status` <> -1 LIMIT 1 [ RunTime:0.020937s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 9541, 'extra' => 'Using where', ) ]
[ SQL ] SELECT * FROM `ob_article` WHERE `category_id` = 12 AND `cate` = '威海网站建设' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.041918s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 9541, 'extra' => 'Using where; Using temporary; Using filesort', ) ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `ob_article` WHERE `category_id` = 12 AND `tags` = '威海虚拟主机' AND `status` <> -1 LIMIT 1 [ RunTime:0.021713s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 9541, 'extra' => 'Using where', ) ]
[ SQL ] SELECT * FROM `ob_article` WHERE `category_id` = 12 AND `tags` = '威海虚拟主机' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.034121s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 9541, 'extra' => 'Using where; Using temporary; Using filesort', ) ]

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