All TLDs / .book / is it legit?

Is .book legit?

Yes — .book is a legitimate, ICANN-approved generic top-level domain, operated by Amazon Registry Services, Inc and live in the official IANA DNS root zone. It's a standard extension available through accredited registrars. A .book address is as technically valid as .com; whether any given site is trustworthy depends on the site itself, not the extension.
In IANA root
Yes — real TLD
Type
Generic
Registration
Open to public

Are .book sites safe?

.book sites are as safe as sites on any other extension. Legitimacy scams are about the individual website, not its TLD — .book has a normal reputation with browsers and spam filters. Check for HTTPS and the usual trust signals on the specific site you're visiting.

Who runs .book?

.book is operated by Amazon Registry Services, Inc., according to the IANA root database.

Can anyone register a .book domain?

Yes — .book is open for public registration through accredited registrars, subject to the registry's policy and whether the specific name is already taken.

Registry operator: Amazon Registry Services, Inc. — per the IANA root database.

Source: IANA root zone database, checked August 23, 2026.

Bottom line

.book is a genuine, ICANN-recognized extension — the question of whether a specific .book site is trustworthy comes down to the site, not the domain ending. See the full .book page for type, operator, and where to register one.

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