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网站有必要装防火墙吗？

网站有必要装防火墙吗？

微信悬赏

网站有必要装防火墙吗？Nginx免费防火墙有没有作用？有没有用过的分享一下

回答：

网站装防火墙，会严重影响搜索引擎的排名，请慎重选择！！！一般不建议安装。

来源：A5营销

Public @ 2012-01-01 16:05:00

PC桌面搜索SEO是不是在萎缩了？有没有未来？

威海seo问答威海seo问答
1811

作为AI语言模型，我没有足够的数据分析来回答您的问题。但是，桌面搜素SEO在移动设备的普及与谷歌搜索引擎算法更新的影响下已经发生了明显的变化，但是它们仍然是有机搜索引擎优化的一部分，尤其是在商业领域。为了获得更多的流量和转换率，应该始终考虑桌面搜索SEO的优化，尽管这种优化的形式和策略会随着时间和技术的推进而变化。

Public @ 2023-06-02 10:50:12

nofollow是否会浪费PR和权重？

威海seo问答威海nofollow
1933

6号写的帖子里唠唠叨叨写了好几件之间没什么关联的事，其中一句是：利用nofollow控制PR流动已经不管用了，从一年前就不管用了。Matt Cutts前不久在SMX大会上透露了这点。更不妙的是，nofollow会浪费PR和权重。也许以后博客都要关闭评论了。不过先不必轻举妄动。没想到引起一些争论，特此澄清一下。7号就看到阿里巴巴SEO国平的博客帖子，以及他在我博客的留言，他认为我误解了Matt Cu

Public @ 2013-12-05 16:04:44

网站有必要装防火墙吗？

网站有必要装防火墙吗？微信悬赏网站有必要装防火墙吗？Nginx免费防火墙有没有作用？有没有用过的分享一下回答：网站装防火墙，会严重影响搜索引擎的排名，请慎重选择！！！一般不建议安装。来源：A5营销

Public @ 2012-01-01 16:05:00

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[ DB ] CONNECT:[ UseTime:0.023656s ] mysql:dbname=briline.net;host=106.14.77.182;port=3306;charset=utf8
[ SQL ] SHOW COLUMNS FROM `ob_article` [ RunTime:0.016955s ]
[ SQL ] SELECT * FROM `ob_article` WHERE `id` = 3975 LIMIT 1 [ RunTime:0.015862s ]
[ 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:0.016751s ]
[ 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:0.016305s ]
[ 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:0.016477s ]
[ 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` = 3975 LIMIT 1 [ RunTime:0.015757s ]
[ 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=3975 [ RunTime:0.018105s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `ob_article` WHERE `category_id` = 12 AND `cate` = '威海seo问答' AND `status` <> -1 LIMIT 1 [ RunTime:0.023366s ]
[ 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seo问答' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.042146s ]
[ 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` = '威海网站防火墙' AND `status` <> -1 LIMIT 1 [ RunTime:0.023315s ]
[ 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` = '威海网站防火墙' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.032500s ]
[ 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', ) ]

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