".com" is a commercial Internet Top Level Domain (TLD). This is an open TLD, meaning that any person or entity is permitted to register.
".gov" is a U.S. government TLD. This TLD is limited to U.S. governmental entities and agencies (mostly federal).
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The acronym TLD stands for the words Top Level Domain. TLD's are
at the highest level of the Domain Name System on the the internet.
They are sometimes referred to mistakenly as Internet
extensions.
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TLD means Top-level Domain. So...... 22 Top Level Domain??