Use WhoIs lookup anytime you want to perform a search to see who owns a domain name, how many pages from a site are listed with Google or even search WhoIs address listings for a website's owner.
The word act, as used in the term Act of Congress, is a common, not a proper noun. The capitalization of the word act is deprecated by some dictionaries and usage authorities. Some writers, in particular the U.S. Code, capitalize Act.
Rule: When you use the complete names of departments, capitalize. You may also capitalize a shortened form of a department. Do not capitalize when these words are used as adjectives or generically. Rule: Capitalize civil titles only when used with the name following or when addressing someone directly.