subsite

noun
sub·​site | \ ˈsəb-ˌsīt How to pronounce subsite (audio) \
variants: or sub-site
plural subsites or sub-sites

Definition of subsite

: a site that is part of a larger site Breitbart.com was launched as a news aggregation site in 2005. Later, a series of topical subsites was added …— Robin Abcarian In March, the EPA announced it is going to remove a part of the site called the Callahan subsite [of the Ellisville Superfund site] from its National Priorities List, essentially saying that section is no longer a safety concern.— Kristen Taketa

First Known Use of subsite

1908, in the meaning defined above

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