Google Sandbox

The title Google has always been a question mark for many SEO.

• There is really the Google sandbox?
• If there is how does it work?

Obviously, the answers may be many, given that nobody has ever put their hands in the source code of Google and can give us confirmation.

From my personal experience I have noticed the following behaviors Google:

1. Your new just published
   In the first case I have used many links of poor quality (I used only to tell Google that the new site there). The site has been indexed in about a week but were only a few pages indexed (no deep crawl). E'come if google give less importance to new sites "reported" from shallow wells authoritative. Pages not idicizzate were analyzed by google in about thirty days.
   
2. Your new just published
   With the second site I used all but very few links to sites by topic and already well positioned.
   The site has been indexed in a dozen days but Google had visited the site thoroughly, had already read all the pages. The result was certainly better than the previous year.
   

Once the phase of inclusion in the indices, I dedicated the ranking of sites on various keywords and I noticed that google has behaved the same way.
In less than a month the two sites had risen in the third page on keywords that had about 8 million results. The result I seemed too good and not something I quadrava.
At some point, when they were entering hot zone, is shot as if it were a wake-up call for Google, almost as if the crawler had noticed that sites were going too fast on the front page and obviously google wants only sites best are in the top 10.

The result was as follows:

The site is entered immediately into position 36 and has started the short climb up to get in position 26 before falling to 29 and suddenly disappear (position 350).

Analysing SEOMax with what was happening I realized that the results were related to the page that I was following but when they are finished in position 350 the result pointed to another page of the site. At that point I began to believe that probably the Page Sandbox really exist.

Google when saw that the page saliva too quickly has been put into a standby (probably page title? There?). This happened to me several times, in many cases, the page was part of the previous best positions, in other is no longer rising ...
In the coming days study in depth this type of behaviour Google to understand when is the case for concern:)