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什么是首选域设置

首选域设置是指在网络或系统中指定首选的域名服务器。当计算机需要解析一个域名时，它会先询问首选域名服务器，如果该服务器无法解析，则会继续询问其它域名服务器。首选域名服务器的选择可以影响网络或系统的性能和可靠性。

Public @ 2023-06-04 02:00:06

301永久重定向作用

301永久重定向是一种HTTP状态码，使浏览器或搜索引擎知道该网页已永久移动到另一个网址。这种重定向通常用于网站重新设计、更改域名或更改URL结构的情况下。它会直接跳转到新的网址，而不是像302临时重定向那样保留原始URL。301永久重定向可以保持网站的搜索引擎排名和链接值，并帮助用户找到正确的网页，提高用户体验。

Public @ 2023-04-07 06:00:13

大型网站如何做301重定向的策略

1. 使用301跳转，将301跳转设置为静态资源； 2. 使用通用引擎脚本，如PHP、ASP或Perl脚本，实现编写代码实现301跳转； 3. 如果需要对不同参数进行重定向，则可以对每个参数创建一个重定向规则； 4. 如果需要重定向大量的网页，则创建.htaccess文件，并使用表达式及RewriteRule TIPS的语法编写大量的重定向规则； 5. 使用CDN数据中心，如Cloud

Public @ 2023-02-26 14:54:18

什么是首选域设置

网站在做优化的时候有一个专业术语叫首选域，这个专业术语在很多SEO培训机构或者SEO行业前辈经验分享中都有提到过。那究竟什么是首选域的作用，网站如何设置首选域　　什么是首选域呢?　　网站的首选域类似于标准化URL，是搜索引擎索引中编制网页的域。在搜索引擎搜索结果中，指向网站的链接有www和非www网址格式。而所谓的首选域是我们希望网站在搜索结果中显示的格式。　　一般情况下，搜索引擎认为域名带www

Public @ 2021-09-10 16:21:37

什么是首选域设置

首选域设置是指在网络或系统中指定首选的域名服务器。当计算机需要解析一个域名时，它会先询问首选域名服务器，如果该服务器无法解析，则会继续询问其它域名服务器。首选域名服务器的选择可以影响网络或系统的性能和可靠性。

Public @ 2023-06-04 02:00:06

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[ DB ] CONNECT:[ UseTime:0.025911s ] mysql:dbname=briline.net;host=106.14.77.182;port=3306;charset=utf8
[ SQL ] SHOW COLUMNS FROM `ob_article` [ RunTime:0.018462s ]
[ SQL ] SELECT * FROM `ob_article` WHERE `id` = 8406 LIMIT 1 [ RunTime:0.017553s ]
[ 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:0.017879s ]
[ 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:0.017941s ]
[ 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:0.018360s ]
[ 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` = 8406 LIMIT 1 [ RunTime:0.017519s ]
[ 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=8406 [ RunTime:0.021159s ]
[ 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:0.024797s ]
[ 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:0.038103s ]
[ 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` = '威海首选域' AND `status` <> -1 LIMIT 1 [ RunTime:0.024822s ]
[ 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` = '威海首选域' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.033307s ]
[ 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', ) ]

0.488040s

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