做過搜索引擎優化排名的站長都清楚，排名上下浮動是很正常的。比如你給一個客戶優化網站，今天排在首頁第二天你讓客戶驗收的時候就跑到第二頁去了。出現這樣情況的時候很多。搜索引擎在不斷的變換自身的排名算法。這樣也相對增加了搜索引擎優化的難度。
Webmasters who have done search engine optimization rankings are aware that it is normal for rankings to fluctuate up and down. For example, if you optimize a website for a client, it will be on the first page today. The next day, when you ask the client for acceptance, it will run to the second page. There are many times when this situation occurs. Search engines are constantly changing their ranking algorithms. This also relatively increases the difficulty of search engine optimization.
三、首頁排名的局限性
3、 Limitations of homepage ranking
搜索引擎首頁的位置是很局限的，首頁的自然排名就10個位置。我們競爭的就是這10位置。具體來說沒有10個位置，比如百度：百度自己的產品要占一到1-2個位置，有時候會到3個位置全是百度的產品。最多也就是7-8 個位置是用優化方式能達到的。所有的人都在競爭這幾個位置，比如一個共有11家在做優化，不管你怎么優化都會有一個是成功的，總有一個是不成功的。這是做搜索引擎優化的一個不足之處。
The position of the search engine homepage is very limited, and the natural ranking of the homepage is only 10 positions. We are competing for these 10 positions. Specifically, there are no 10 positions, for example, Baidu: Baidu's own products occupy 1-2 positions, and sometimes all 3 positions are Baidu's products. A maximum of 7-8 positions can be achieved through optimization methods. Everyone is competing for these positions, for example, there are a total of 11 companies doing optimization. No matter how much you optimize, there will always be one successful and one unsuccessful. This is a shortcoming of doing search engine optimization.
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