Snapshot not updated? Learn how Web pages are updated first

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Before the A5 to share some of the actual operation of the case, the reply is also more people, feel that this sharing is worthwhile. But many people in the specific operation is still not handy, summed up is to SEO this line is not enough, recently I also read more about search engine books, the book many content is official, some friends understand it will be more difficult. After learning some simple knowledge about search engines, today's Gao Fang Kan will share with you a common problem in the SEO community. This question basically on each big platform many people ask every day, that is about search engine webpage update.

The first common snapshot update problem also belongs to the update of the Web page, the Web update is a significant feature of the Internet. How did the search engine update the Web page? It can be divided into three kinds of update strategies: Historical reference Strategy, user experience strategy and clustering sampling strategy. Then let's talk about how these three strategies are implemented separately.

Historical reference Strategy

This strategy I believe is literally also very good understanding, but also can be more intuitive embodiment of the search engine update rules, that is, if this page has been updated more frequently, then in the talk will also be more frequent. If there is a deeper understanding, in fact, the search engine in the Web crawl time, will build a model, and then according to the past changes in the page to predict the change of the situation, there will be research to divide the page into different areas of the ads or some of the content not updated to ignore, so as to improve the crawl efficiency.

Explanation: Trust a lot of friends will also have this feeling, is that you have been maintaining a period of time to update the page, even if there is a period of time does not update, the snapshot will continue to update, which also contains a historical reference strategy.

User Experience Strategy

This strategy is also the search engine has always been stressed, how to understand it? Generally can be understood as a general user input keyword query, for the sort will only browse the first three pages of content, this is the user's search habits. So the content of the first three pages can meet the needs of users is particularly important, for the Web page does not affect the user experience, the later update is OK, of course, the greater the impact of the number of visitors to the Web page, should be faster to update the better. Generally on the server side will save multiple versions of the page, more according to current situation of the page to score the final selection of the average, and then to the page to show updates.

Explanation: This is also a better intuitive feeling, we operate every station, in not to rise to the front page, many of the first page of the site are snapshots update more frequently, compared to the enterprise station, many of the enterprise station content update is not very diligent, or even days, weeks, months to update once, But snapshots also remain within a week, which is the presentation of the user experience strategy.

Clustering sampling strategy

This strategy is different from the previous two policy mechanisms, the first two are historically oriented, a large number of storage history will aggravate the burden on the server, but also affect the search speed. So the search engine's technical engineers have to study more advanced strategies. Cluster sampling will be a number of pages with the same attributes to classify, sample, and then sample the individual pages, analysis, calculation of the update cycle, and then applied to all, to update all pages. Another advantage of this update strategy is that Web pages that don't have historical information can be updated more frequently than the first two.

Explanation: This does not have to explain too much, is the above two kinds of strategy optimization, in order to better let the search engine processing page snapshot update.

The above is the author of the Web page to update the theoretical analysis and exchange, welcome more friends can study the essence of SEO.

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The article comes from Gao Fang kan blog http://www.wx52607.com/139.html

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