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Brand TLD DNSSEC

.silk Amazon Registry Services, Inc.'s brand TLD

.silk is a "dotBrand": a top-level domain run by Amazon Registry Services, Inc. for its own use, not a domain the public can buy.

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Brand TLD

Brand TLD

.silk

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What is .silk?

Brand TLDs operate under Specification 13 of ICANN's registry agreement. It lets a trademark owner keep every second-level name for itself, so you won't find .silk names for sale at any registrar.

.silk entered the DNS root zone on June 7, 2016, 10 years ago. It came out of ICANN's New gTLD Program, the 2012 application round that grew the root from 22 generic TLDs to well over a thousand.

Amazon Registry Services, Inc. operates a large portfolio of 51 TLDs, including .amazon, .audible, .author, .book and .bot.

On the technical side, .silk is served by 8 authoritative name servers, every one of them reachable over IPv6. It is also DNSSEC-signed: the root zone carries a DS record for .silk, which lets validating resolvers check its answers cryptographically. Registration data is published over RDAP.

Same registry, other endings

50 other TLDs share this operator.

.silk FAQ

What country is .silk?

None. .silk is a generic top-level domain, so it isn't tied to any country.

Who owns the .silk domain extension?

Amazon Registry Services, Inc. operates .silk as its registry, under a registry agreement with ICANN.

When was .silk created?

.silk was delegated to the DNS root zone on June 7, 2016.

Is .silk a valid domain?

Yes. .silk is an active top-level domain in the DNS root zone, delegated in 2016, so .silk addresses work in every browser.

Can I buy a .silk domain?

No. .silk is a brand TLD under ICANN Specification 13, so names are reserved for Amazon Registry Services, Inc.

Is .silk DNSSEC-signed?

Yes, the root zone holds a DS record for .silk.

Sources

Data from IANA root zone version 2026102000. Last changed February 14, 2025. Spotted something wrong? Tell us.

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How well do you know .silk?

Three questions. Each right answer is worth 10 XP — more if you keep a streak going.

  1. 1In which year did .silk enter the root zone?

  2. 2Who runs the .silk registry?

  3. 3Can the public register names under .silk?