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快照时间为什么会倒退？

一个重要网页的快照往往会在搜索引擎数据库中保存有多份网页快照，这些快照的抓取时间并不相同。在一些极特殊情况下，搜索引擎系统可能会选择不同于当前搜索结果中的快照版本，导致出现快照时间倒退的情况。这对网站在搜索引擎中的表现无任何影响，也并不代表搜索引擎对该网站做了降权处理。

综上，快照的更新与页面中是否出现重要新增内容有直接关联，而与网站本身的“权重”、是否“被K”并无直接关联。站长不必过多关注网站的快照时间，我们建议站长将精力集中在网站的内容建设中，只有提高网站的内容价值和检索体验，方可受到用户和搜索引擎的信赖。

如果大家对百度快照还有别的疑问，大家可以到[学堂同学汇][学习讨论] 《关于百度快照问题的若干说明》讨论帖中发表自己的看法，我们的工作人员会关注这里并与大家进行探讨。

来源：百度搜索资源平台百度搜索学堂

Public @ 2020-05-25 15:34:25

百度移动搜索site语法升级公告

随着pc端与移动端网站的融合，原有索引量数据的展现逻辑已经不足以满足用户的需求，3月中旬特别对移动端的site算法进行了升级，并已正式上线！1、移动端增加site语法卡片，直观展示网站在移动端的索引量；2、移动端site语法与站长平台的索引量工具打平，保证统计方式和统计数量的一致性；3、移动端增加适配索引量，通过pc适配过来的移动url也可以通过site或者搜索url进行展现;来源：百度搜索资源平

Public @ 2022-08-03 15:34:22

搜索某关键词，我的网页在搜狗的排序位置，和在其他搜索引擎的差异非常大，这正常吗？

通常情况下，这是正常的现象。因为不同搜索引擎的算法，都是不同的。

Public @ 2019-07-07 16:22:43

【官方说法】详谈百度快照前世今生

百度快照是百度搜索引擎的一个重要功能，它可以将网页在被百度抓取时的状态保存下来，并在搜索结果页面中展示。用户可以通过查看快照来了解网页内容的更新情况和变化。在过去，百度快照经常被用于反映网站的收录和排名情况。但随着搜索引擎算法的不断升级，快照的重要性已经逐渐减弱，更多的是作为一种参考资料来被使用。同时，百度也对快照做了一些改进和优化，如提升了快照的更新速度、增加了网页快照的存储空间等，以提

Public @ 2023-06-24 10:00:11

什么是百度快照？

每条搜索结果下都有“百度快照”字样，点击后的页面即为百度快照，页面地址栏中的链接即为百度快照地址。

Public @ 2015-07-13 15:34:32

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[ DB ] CONNECT:[ UseTime:0.022959s ] mysql:dbname=briline.net;host=106.14.77.182;port=3306;charset=utf8
[ SQL ] SHOW COLUMNS FROM `ob_article` [ RunTime:0.016819s ]
[ SQL ] SELECT * FROM `ob_article` WHERE `id` = 1091 LIMIT 1 [ RunTime:0.015414s ]
[ 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:0.015618s ]
[ 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:0.015993s ]
[ 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:0.016338s ]
[ 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` = 1091 LIMIT 1 [ RunTime:0.015353s ]
[ 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=1091 [ RunTime:0.016296s ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `ob_article` WHERE `category_id` = 12 AND `cate` = '威海了解搜索引擎' AND `status` <> -1 LIMIT 1 [ RunTime:0.021900s ]
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[ SQL ] SELECT * FROM `ob_article` WHERE `category_id` = 12 AND `cate` = '威海了解搜索引擎' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.034526s ]
[ EXPLAIN : array ( 'id' => 1, 'select_type' => 'SIMPLE', 'table' => 'ob_article', 'type' => 'ALL', 'possible_keys' => NULL, 'key' => NULL, 'key_len' => NULL, 'ref' => NULL, 'rows' => 9541, 'extra' => 'Using where; Using temporary; Using filesort', ) ]
[ SQL ] SELECT COUNT(*) AS tp_count FROM `ob_article` WHERE `category_id` = 12 AND `tags` = '威海网页快照' AND `status` <> -1 LIMIT 1 [ RunTime:0.022057s ]
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[ SQL ] SELECT * FROM `ob_article` WHERE `category_id` = 12 AND `tags` = '威海网页快照' AND `status` <> -1 ORDER BY rand() LIMIT 0,2 [ RunTime:0.032283s ]
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