I’m always asked what is sandbox of google, and I try to explain them with common words, so let me make another attempt to explain google’s sandbox, I researched it’s operating from practise and read some appropriate resources about it, In conclusion my idea about sandbox as follow:

Sandbox is so called filter which developed in 2004. The filter put in its box all new born sites and mark them as “new” site, until they are get “trusted”. This affect on the sites SERP’s (search engine results pages), untill google keep out the new website from its sandbox. The new website might appears in the result pages, for non competitve keywords or phrases, but when it come to competitve keywords, then it is no where. The reason of the filter is to keep new websites from having prompt success in the search engine result pages.

The sandbox affect to all newly websites. It is important to note that the filter is not a punishment for anything a webmaster does with a new website. The filter is merely an initiation period for new websites.

So, if you createed new website and submitted on google, even linked from other sites, your site will be kept in sandbox for a while, weeks, month, nobody know, except google. Be pathient, and go ahead with natural content building and link exchange, once you will get it. This sandbox is pointed against spam websites, and if your website is quality enough, then no reason to worry about., Google will go on to change it algo concerning inbound links and content, but the basic elements of ranking will remain the same.