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造成新站在头一两个月内排名不稳定的Google幽灵现象
时间：2022-07-02 20:00:05 编辑：袖梨 来源：一聚教程网
我的网站于7月8日早上突然从Google搜索结果中消失，于7月11日早上恢复。新站在头一两个月内PR值、排名会不稳定，有时甚至从Google搜索结果中消失，国外有人将此称为Google幽灵现象。
英文资料附在下面，读者有兴趣可以研究一下。总之新站遇到这种情况不必惊慌，只要有一些反向链接，就可高枕无忧。
1) A popular issue and one that is particularly important at this time of the crawl/index build is what Ive come to call Google Ghosts.
Every so often a new site is put up on the internet, or a new page, and it appears in the index before the monthly update. Quite often it has good rankings at that point in time. But horrifyingly they often disappear again a few days or weeks later.
These ghostly appearances are often confusing to newbies, and sometimes to the experts! However, the explanation is quite simple.
Google has two types of crawler, its main crawler and the fresh crawler. The main crawler is capable of discovering new pages. If a new page is discovered immediately after a new index has been built then that pages discovery is of little use if it has to wait a month for a new index to be built.
The building of a new index also contains all the calculations of the non-query dependant factors involved in calculating a pages rank (for example, PageRank).
To fully utilise the pages, without waiting for the next set of index calculations Google must do something very simple. Guess its ranking. By guessing the new content is at least available to the searchers.
As it is a guess, the following things hold true:
1. The ranking of a ghost entry will not be likely to be the ranking of the page after the index.
2. The ghost entry must be removed from the database before the monthly creation of a new database. This removal will be temporary.
If you have such an entry in the index, then your major objective should be to get it on the list of pages on Googles fresh-list. To do this update the content of the page at regular, preferably daily, intervals.
英文资料附在下面，读者有兴趣可以研究一下。总之新站遇到这种情况不必惊慌，只要有一些反向链接，就可高枕无忧。
1) A popular issue and one that is particularly important at this time of the crawl/index build is what Ive come to call Google Ghosts.
Every so often a new site is put up on the internet, or a new page, and it appears in the index before the monthly update. Quite often it has good rankings at that point in time. But horrifyingly they often disappear again a few days or weeks later.
These ghostly appearances are often confusing to newbies, and sometimes to the experts! However, the explanation is quite simple.
Google has two types of crawler, its main crawler and the fresh crawler. The main crawler is capable of discovering new pages. If a new page is discovered immediately after a new index has been built then that pages discovery is of little use if it has to wait a month for a new index to be built.
The building of a new index also contains all the calculations of the non-query dependant factors involved in calculating a pages rank (for example, PageRank).
To fully utilise the pages, without waiting for the next set of index calculations Google must do something very simple. Guess its ranking. By guessing the new content is at least available to the searchers.
As it is a guess, the following things hold true:
1. The ranking of a ghost entry will not be likely to be the ranking of the page after the index.
2. The ghost entry must be removed from the database before the monthly creation of a new database. This removal will be temporary.
If you have such an entry in the index, then your major objective should be to get it on the list of pages on Googles fresh-list. To do this update the content of the page at regular, preferably daily, intervals.
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