The domain name gives some indication of the source and intended audience of a web address.
- .com - generally a commercial site
- .edu - educational institutions
- .gov - U.S. government
- .org - organizations (some non-profit)
- .int - international organizations
- .mil - U.S. military organizations
- .net - catch-all for sites not using .com, open to anyone (some administrative sites)
- .biz - usually intended for businesses
- .info - another catch-all, open to anyone
IANA Root Zone Database maintains details about top level domain names