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The .book TLD is a generic top-level domain operated by Amazon Registry Services, Inc. It was created under ICANN's New gTLD Program to serve entities involved in the publishing, reading, or bookselling industries, though it is open to public registration. The domain aims to provide a clear, meaningful namespace for book-related content, resources, and communities.
Open for registration by anyone; no geographic or organizational restrictions
The .book extension is a generic top-level domain (gTLD) in the Domain Name System (DNS). It is managed by Amazon Registry Services, Inc.. .book was introduced in 2015. There are currently 5 domains registered under this extension. DNSSEC adoption stands at 20.0%.
Registration pricing for .book is not publicly listed. Contact an ICANN-accredited registrar for availability and pricing.
The .book domain was applied for by multiple parties, including Amazon, Donuts, and Top Level Domain Holdings. After a private auction in November 2014, Amazon became the sole applicant. It was delegated to the DNS root zone on December 5, 2015, under ICANN's New gTLD Program. The domain was intended to establish a centralized namespace for book-related services and digital content.
The .book TLD serves a specific purpose in the domain ecosystem, providing users with clear context about the websites using this extension.
The .book TLD is commonly used for the following purposes:
5
20.0%
| Metric | Value |
|---|---|
| Extension | .book |
| Type | Generic TLD (gTLD) |
| Total Registrations | 5 |
| DNSSEC Adoption | 20.0% |
| Registration Price | Contact registrar |
| Renewal Price | Contact registrar |
| Registry Operator | Amazon Registry Services, Inc. |
| Introduced | 2015-12-05 |
| Restrictions | Open for registration by anyone; no geographic or organizational restrictions |
Registration density analysis for .book domains by character length. Currently 1 domains are registered across all lengths.
Total Registered
1
Peak Saturation
0.01%
3-char names
DNSSEC Adoption
100.0%
Top Provider
—
| Length | Registered | % Full | Density |
|---|---|---|---|
| 3 chars | 1 | 0.01% |
Updated daily from zone file analysis. Alpha density = registered / 26^length.
Compare across all TLDs →No special requirements. Open to public registration with no eligibility criteria.
The .book TLD is available for registration through accredited domain registrars.
How does .book compare to similar top-level domains? This comparison covers pricing, type, and availability to help choose the right domain extension.
View the full TLD Directory to browse all 1,900+ top-level domains with pricing, registration density analysis, and DNSSEC adoption rates.
DNSChkr maintains a comprehensive TLD directory covering all 1,900+ active top-level domains. The data on this page combines multiple authoritative sources to provide information not found in standard TLD listings.
Domain registration counts and density analysis are computed daily from TLD zone files, providing accurate registration statistics rather than estimates.
DNSSEC deployment percentages are measured by scanning actual DNS records across all registered domains in each TLD zone.
Registration, renewal, and transfer prices are checked hourly across multiple accredited registrars and compared automatically.
DNS provider distribution is calculated from nameserver records, showing which hosting providers serve the most domains in each TLD.
Use DNSChkr tools to inspect any .book domain: run a full DNS health check, check DNS propagation, look up WHOIS records, or verify email authentication.
Disclaimer: The information on this page is sourced from IANA, ICANN, and respective registry operator publications, then structured and formatted with the assistance of AI. While accuracy is a priority, details such as pricing, registration requirements, and policies may change. Always verify with the official registry or an accredited registrar before making registration decisions.