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搜索引擎怎樣鑒別垃圾留言

昨天談到博客作者對(duì)垃圾留言的厭惡。今天再談?wù)勊阉饕婵赡茉鯓予b別垃圾留言。在點(diǎn)石論壇里看到了太多帖子討論博客留言群發(fā)軟件以及各種各樣的經(jīng)驗(yàn)。很多人都認(rèn)為，有不少網(wǎng)站靠博客垃圾留言提高排名，效果不錯(cuò)，網(wǎng)站也沒被懲罰。不過有兩點(diǎn)需要考慮：1）我們看到的大量垃圾留言不一定是網(wǎng)站排名的原因。為減少誤殺，搜索引擎通常忽略垃圾留言，而不會(huì)直接懲罰留垃圾留言的網(wǎng)站，不然太危險(xiǎn)了，很容易被人利用來陷害競(jìng)爭(zhēng)對(duì)手網(wǎng)站

Public @ 2021-05-19 16:14:18

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[ DB ] CONNECT:[ UseTime:0.024237s ] mysql:dbname=briline.net;host=106.14.77.182;port=3306;charset=utf8
[ SQL ] SHOW COLUMNS FROM `ob_article` [ RunTime:0.017213s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `ob_article` WHERE `category_id` = 12 AND `tags` = '威海垃圾內(nèi)容' AND `status` <> -1 LIMIT 1 [ RunTime:0.023381s ]
[ 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` = '威海垃圾內(nèi)容' AND `status` <> -1 ORDER BY create_time desc LIMIT 0,10 [ RunTime:0.023741s ]
[ 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 filesort', ) ]
[ SQL ] select * from `ob_article_tongji` where category_id=12 and mark_type='cate' order by times desc limit 15 [ RunTime:0.016671s ]
[ 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:0.016904s ]
[ 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:0.017709s ]
[ 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', ) ]

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搜索引擎怎樣鑒別垃圾留言

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