SEO optimization-Google's number of fluctuations in the cause of the analysis

First Google algorithm

It is said that Google has been first included after the audit, is to first add new content on the site included, and then to audit, if the discovery content is not original, and other sites have similar, will be low weight of the site included to reduce. I think that's probably one of the reasons. My site is relatively new, the weight is naturally low, plus the talent site, the local site has a lot of content may be similar, such as someone in a website registered information, but also in the B site registered information, for the same person, personal information is certainly the same, so will not be determined by the search engine is not original? Plus the weight of my site is low, so to reduce it?

Second original content

or about the content of the site, in fact, my site, I have been very concerned about the original. The above article, the basic is my own writing, and is not false original. Supposedly these content should be liked by search engines. The problem is in terms of talent information and recruitment information, because the main content of the network is talent and recruitment information, but in the same area, many of these information are similar. It seems that Google's search engine in this respect is not too intelligent, if it is really because of this put my collection to remove, it seems unfair.

Third homepage Change

Recently, I have made some changes to the homepage, I think the change is very small, not enough to cause the search engine alert and included changes. From other search engine included also did not see this change. Is Google's search engine more sensitive? This little change has alerted me to it? maybe. It seems that the homepage can not casually change this principle, or always insist, especially the new station