On the reasons for different time snapshots to be searched for different contents

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Presumably many friends have encountered a site has two snapshot time, or even three snapshot time, although it is the same URL, but only the content of the search is not the same, there have been a snapshot of different times, what is the reason why, today where all SEO chat about this problem. First of all, we analyze a Web site two different times of the snapshot is normal, first look at a few screenshots:

From the figure can be seen, the two stations to search for different content of the snapshot time is different, then show that a site has two snapshots is not a case, there is a certain commonality, may have a friend will think that there is no persuasion, after all, these two sites are only small station.

Then we read the real big station Baidu own snapshot time is also different, and you can find some other site testing, there are two snapshots of the site there are many. Obviously, there are two snapshot time is not the site is not normal performance, if so, Baidu's own station is not normal.

In fact, if a friend long-term seriously observe a station, you can find that basically each site will have two or more than two snapshots of the time period. For this reason, in order to avoid the problem of misreading, it is important to note that two different snapshot times and two different snapshots are essentially different, one is simply the snapshot time, one contains the snapshot time and the snapshot content, etc. According to Fanfan SEO own nearly two months to the large and small sites observation analysis, the specific reasons for the following two points:

1. Baidu's database is out of sync.

We know that Baidu has a huge database, and not only a database, then Baidu in the site on the data update, due to the problem of database caching and multiple databases there is the difference between the update time, there are many different time snapshots.

2. Different keywords corresponding to the site weight difference

We each site has more than one keyword, due to different keyword corresponding weight difference, resulting in the site ranking is not the same, rather than the same day of the snapshot time corresponding to the weight of the site is not the same, natural search for different content site display snapshot time is different. This should be one of the most likely reasons for a two-snapshot time.

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Analysis summarizes the above two reasons why different time snapshots occur, and presumably has a clear understanding of the problem. In the process of Web site optimization may encounter such a problem, when dealing with the tense, more observation, more analysis, more consultation, it will be able to solve good. This article by http://www.onlinedown.net/soft/110630.htm original writing, welcome reprint exchange.