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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

新站内页权重超过首页，怎样集中首页权重

威海seo问答威海seo问答
1411

1. 确保网站结构清晰，内部链接合理。优化链接结构，将首页和重要的内页链接导入重要的目录和分类。 2. 制作优质的首页内容，增加吸引力，让搜索引擎更关注首页，提升首页的排名。 3. 消除内页与首页的重复内容，防止重复内容影响到首页的排名。 4. 加强外部链接，建立高权重、有关联性的外部链接，增加优质的流量，提升站点的权重，进而提升首页权重。 5. 根据用户偏好和搜素关键词进行网站内容优化，

Public @ 2023-04-23 19:00:11

关于h1和h2标签的使用问题

清致提问于 3年之前老师，我记得您说过，每个页面只加一次h1，但是我观察了您的网站，网站名是任何一个页面加了h1，但是栏目页的栏目名称和内容页的标题您也都加了h1，所以查看您每个页面的源代码h1都用了2次。我一直是这么想的，既然每个页面都只加一个h1，如果是首页，如果网站名很重要加了h1，其它页面的网站名我都不敢加了，因为我的h1只加在当前网页最重要的标题上，比如栏目页我就和您一样加在栏目名称

Public @ 2010-10-18 15:52:42

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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基本文件流程错误 SQL 调试

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[ DB ] CONNECT:[ UseTime:0.025175s ] mysql:dbname=briline.net;host=106.14.77.182;port=3306;charset=utf8
[ SQL ] SHOW COLUMNS FROM `ob_article` [ RunTime:0.017982s ]
[ SQL ] SELECT * FROM `ob_article` WHERE `id` = 3975 LIMIT 1 [ RunTime:0.016989s ]
[ 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:0.017495s ]
[ 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:0.017402s ]
[ 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:0.017431s ]
[ 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:0.016863s ]
[ 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:0.020699s ]
[ 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:0.024457s ]
[ 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:0.037792s ]
[ 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:0.023693s ]
[ 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:0.032288s ]
[ 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', ) ]

0.457208s

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