In this age of online competition you may consider it hard to believe that a search-engine can block the rankings of a newer website. This is what is now believed to be happening to many new websites every day. Many SEO experts have the view that Google is not comfortable with ranking some new sites until they have had time to prove their worthiness by staying online for more than a few months at least. Many SEO experts have used the term Sandbox which follows the idea that all many un-trusted newer websites have their rankings placed in a special database until the new site has proven itself and before ranking in the main SERPS (search engine result pages] can begin.
However these new web sites are not hindered as much as the inbound links that are gained from other online sites that may link to them. New inbound links that are gained are placed in a sandbox status until they too pickup page rank from other inbound links from matured websites or added directly by an SEO agency campaign. The main idea behind the sandbox is to prevent fast rankings to occur on fresh new websites. This holding period seems to be between 30 days to several months before a new website can begin obtaining page rank from other outside links.
Many of the newer websites that get caught in the filter of the Google sandbox quickly, are those which try to get high rankings for very competitive keywords and phrases. The best advice to avoid getting your new website caught up in the sandbox effect is by going after much less competitive keywords when first starting out. Google may have no trigger points to apply the sandbox filter for such websites, there is however still a risk as the search engines and constantly changing their algorithms.