.com.sb is a country-specific Internet Domain (ccTLD) from the Solomon Islands.
Solomon Islands is a sovereign state in Oceania, east of PapuaNew Guinea, consisting of nearly one thousand islands. The nation of Solomon Islands is a member of the comminwealth of Nations.
Within .com.sb the term .com is the abbreviation for "commercial".
Thus this domain is especially fitting for tradesmen and other commercial entities related to the Solomon Islands.
Commercial entities in Solomon Islands