What is .書籍?
ICANN's records put the delegation of .書籍 on February 19, 2016. Like most of the newer endings, it was applied for in the 2012 New gTLD Program round and its registry agreement was signed on February 26, 2015.
In the DNS, .書籍 is stored as the ASCII string xn--rovu88b (its "A-label"). Browsers and apps that support IDNs show the native script instead.
Amazon Registry Services, Inc. operates a large portfolio of 51 TLDs, including .amazon, .audible, .author, .book and .bot.
Under the hood, the root zone points to 6 name servers for .書籍, every one of them reachable over IPv6. The delegation is DNSSEC-signed, so resolvers can verify that answers for .書籍 haven't been tampered with on the way. Registration data is published over RDAP and WHOIS (the WHOIS server is whois.nic.xn--rovu88b).
Same registry, other endings
50 other TLDs share this operator.
.書籍 FAQ
What does .書籍 mean?
.書籍 is Japanese for "book". It's a generic top-level domain, stored in the DNS as xn--rovu88b.
What country is .書籍?
None. .書籍 is a generic top-level domain, so it isn't tied to any country.
Who owns the .書籍 domain extension?
Amazon Registry Services, Inc. operates .書籍 as its registry, under a registry agreement with ICANN.
When was .書籍 created?
.書籍 was delegated to the DNS root zone on February 19, 2016.
Is .書籍 a valid domain?
Yes. .書籍 is an active top-level domain in the DNS root zone, delegated in 2016, so .書籍 addresses work in every browser.
Can I buy a .書籍 domain?
.書籍 names are sold through ICANN-accredited registrars. Some gTLDs restrict who can register, so read Amazon Registry Services, Inc.'s policy if you're unsure.
Is .書籍 DNSSEC-signed?
Yes, the root zone holds a DS record for .書籍.
Sources
Data from IANA root zone version 2026102000. Last changed June 17, 2025. Spotted something wrong? Tell us.
