Baidu's "Taicang Sunshine Talent Network" has different snapshot dates.

Generally speaking, it is caused by the different update time of Baidu server.

After careful analysis, three questions can be derived:

1. Why does Baidu have different servers?

A: Baidu grabs a lot of data every day, and each snapshot page ranges from several K to several 10K, which causes its hard disk to be infinitely enlarged. If it is big enough, you need to add a hard disk. If it reaches a certain level, you need to add servers. The data is too old, and it will be slow if you don't change the server.

2. Why are snapshots of different keywords different?

A: In order to make the search faster and faster, Baidu puts the data of the same keyword on the same server to achieve the fastest search results. Because the snapshot update time of servers is different, it may lead to different snapshot times of different servers.

The keyword database that can be simply understood as "silent" is placed in server A, and the keyword database that is "silent" is placed in server B. A's server has been updated, but B's server has not been updated. So when you search for the keyword "silence", it is a snapshot of today, and when you search for "silence", it is a snapshot before.

3. As mentioned above, there should be many home page snapshots. Why does my site only have a snapshot of the home page: the website, and it is the latest?

A: site is an advanced internal command of Baidu search. Once the correct site command appears, Baidu search program will call all the data stored in the site. After comparative analysis, it will discard the same page and take the latest snapshot of all the pages searched by the site. Therefore, the site snapshot behind the site is always up-to-date and unique.

It is precisely because after site, Baidu needs to query and call all the information of the searched server of this site, so the number of searched pages displayed on our website is inaccurate. Usually, when we click on the last page of the search, there will be a prompt: in order to provide the most relevant results, we have omitted some items with similar contents. Click here to view all search results. }, after we clicked again, we captured all the data correctly.