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为什么抓取频次突然减少？

抓取频次突然减少的原因可能有多种。以下是一些可能的原因： 1. 网站出现了技术故障或服务器问题，导致抓取程序无法正常访问网站。这可能是由于服务器维护、更新或其他问题所引起的，通常是暂时性的。 2. 网站的robots.txt文件更改了抓取器的访问权限。robots.txt是网站所有者用来指示搜索引擎抓取程序哪些页面可以被索引的文件。如果该文件禁止抓取器访问网站的某些或全部内容，抓取频次会相应地减少。 3. 网站的HTTP响应头中的"X-RateLimit"标头发生变化，限制了对网站的请求频率。这是一种常见的限制措施，用于防止恶意或过度使用抓取器的行为。 4. 抓取程序的配置文件更改了抓取频次设置，导致减少了抓取次数。这可能是出于不同的原因，比如网站所有者的要求、抓取策略的调整等。 5. 网站的内容发生了变化，抓取程序可能会根据变化的情况进行自适应，减少对某些页面或资源的抓取频次。 6. 机器或网络故障导致抓取程序无法正常工作或访问网络，从而减少了抓取频次。以上仅仅是一些常见的原因，具体情况可能因为不同的网站和抓取程序而有所不同。如果发现抓取频次减少，建议检查以上因素，以确定具体的原因，并采取相应的措施。

Public @ 2023-07-23 22:50:32

新站整站未收录怎么办？

新站未被收录，可能是链接尚未被百度爬虫发现，站长可以在链接提交工具中发布链接告知爬虫。提交后，百度会根据页面质量判断是否应该收录（可参考百度搜索白皮书）。如果链接提交超一个月未收录，可在此处进行反馈，并提供具体未收录的链接和截图，以便我们复查

Public @ 2010-06-07 16:06:40

抓取诊断工具常见错误类型解析

1. 连接错误：该类型错误指的是诊断工具与被诊断设备之间的连接不稳定或无法建立连接。可能的原因包括网络连接问题、设备故障或设备设置不正确。 2. 数据收集错误：如果诊断工具无法收集正确的数据，那么它将无法进行准确的分析和故障排除。常见的数据收集错误包括收集错误的数据类型、数据传输中的数据丢失或数据采集程序的错误。 3. 数据分析错误：此类错误在诊断工具发现故障时最常见。通常这是因为分析程序无法

Public @ 2023-06-13 10:00:35

移动化培训长沙视频8——辅助移动站点被百度抓取的工具

这个视频的内容不明确，因此无法为您提供答案。请提供更多信息。

Public @ 2023-06-19 12:00:04

百度搜索资源平台-新添加验证的站点，为什么抓取频次工具无数据？

抓取频次工具数据计算需要一定时间，站点在资源平台验证完成的当天和第二天，工具不会有数据显示，数据还在计算中，从第三天开始，才可以看到工具的抓取频次数据。

Public @ 2012-07-18 16:08:15

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[ DB ] CONNECT:[ UseTime:0.024397s ] mysql:dbname=briline.net;host=106.14.77.182;port=3306;charset=utf8
[ SQL ] SHOW COLUMNS FROM `ob_config` [ RunTime:0.017330s ]
[ SQL ] SELECT * FROM `ob_config` [ RunTime:0.016486s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_config', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 25, 'extra' => NULL, ) ]
[ SQL ] SHOW COLUMNS FROM `ob_hook` [ RunTime:0.017320s ]
[ SQL ] SELECT `id`,`name`,`addon_list` FROM `ob_hook` [ RunTime:0.016341s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_hook', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 3, 'extra' => NULL, ) ]
[ SQL ] SHOW COLUMNS FROM `ob_article` [ RunTime:0.017649s ]
[ SQL ] SELECT * FROM `ob_article` WHERE `id` = 9830 LIMIT 1 [ RunTime:0.016655s ]
[ 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:0.016729s ]
[ 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:0.017170s ]
[ 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:0.017482s ]
[ 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` = 9830 LIMIT 1 [ RunTime:0.016431s ]
[ 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=9830 [ RunTime:0.019493s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `ob_article` WHERE `category_id` = 12 AND `cate` = '威海百度搜索资源平台' AND `status` <> -1 LIMIT 1 [ RunTime:0.023418s ]
[ 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` = '威海百度搜索资源平台' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.044302s ]
[ 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` = '威海百度搜索资源平台' AND `status` <> -1 LIMIT 1 [ RunTime:0.023502s ]
[ 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` = '威海百度搜索资源平台' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.040869s ]
[ 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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