Google Sandbox is a Google algorithm which keeps tracks of the methods that we are trying to build backlinks for our blogs. Google Sandbox tracks the IP address of our computer and will notice how much and how frequently we are building a backlinks for our blog.
This is the place where the fresh and less authoritative sites were kept for a certain time period, till their establishment in the search results. This may happens due to the building of so many links within a short time span.
The Google sandbox refers to a commonly held belief that Google has a filter that places all new websites under restrictions for a certain amount of time to prevent them from ranking in searches. The idea behind the Google sandbox is that newer websites are not as relevant as older sites, and they are also more likely to be spam. For this reason, they are restricted and allowed to mature before being allowed to rank well, much as a young child is placed to play in a sandbox by his or her caregiver. Although Google will neither confirm nor deny the existence of the sandbox, it is widely accepted as fact.
Miscellaneous Information: Websites can be in the Google sandbox for varying amounts of time, generally six months to a year. It is extremely difficult to avoid having a brand new domain being placed in the sandbox.