Landsun.org is a 4 years old domain.
It was registered by sun ke , who can be reached at . The site is owned by sun ke. Registration details show that it was registered on 03 Dec 2012 through beijing innovative linkage technology ltd. dba dns.com.cn and will expire on 03 Dec 2016.
Wikipedia is a free web scale encyclopedia, free to be edited by anyone in the world. In a way it is the biggest information repository on the planet. See if landsun.org finds a mention on the Wikipedia.