# What is a domain hack? > What is a domain hack? 8 real examples (youtu.be, cr.yp.to), how to build one for your name and which endings work. Pearlcay: no KYC, paid in crypto. - URL: https://pearlcay.com/domain-hacks/ - Last updated: 2026-11-02 - Publisher: Pearlcay (https://pearlcay.com) A domain hack reads across the dot: *cr.yp.to* is *crypto*. Here is how the trick works, which well-known names use it, and how to build one for your own name. **Quick answer — What is a domain hack?** A domain hack is a web address where the dot and the country-code ending complete the word, like cr.yp.to for crypto or ta.co for taco. At **Pearlcay** you can register one on 15 endings, among them .sh, .io, .ai, .me and .co. A .sh costs $50.49/year and a .me $18.99/year, with no KYC, paid in crypto. ## How does a domain hack work? A domain name has levels separated by dots. A hack reads the last levels as one word. *youtu.be* reads *youtube*. *cr.yp.to* reads *crypto*. Wikipedia defines a domain hack as a name that suggests a word, phrase or name by joining two or more adjacent levels of the domain. The word 'hack' means a trick of reading, not an intrusion. Almost every hack ends in a country code. IANA delegates the two-letter endings from the ISO 3166 list of countries and territories ([RFC 1591](https://www.rfc-editor.org/rfc/rfc1591)). Each pair belongs to a place, and that place's registry sets the rules. ## Eight real addresses built on a country-code ending The first six read as a word or a brand across the dot. The last two are looser: .sh means shell to developers, and .so is just short. Sources are listed below. | Address | How it reads | Ending (place) | What it is | | --- | --- | --- | --- | | youtu.be | youtu + be = YouTube | .be (Belgium) | YouTube's short links, launched on 21 December 2009 | | bit.ly | bit + ly = Bitly | .ly (Libya) | The Bitly link shortener, launched in 2009 | | cr.yp.to | cr + yp + to = crypto | .to (Tonga) | D. J. Bernstein's cryptography site | | ta.co | ta + co = taco | .co (Colombia) | Taco Bell's short address (2015), bought from the .co registry | | del.icio.us | del + icio + us = delicious | .us (United States) | First address of the Delicious bookmarking site (2003) | | goo.gl | goo + gl = Google | .gl (Greenland) | Google's URL shortener | | bun.sh | Bun + sh (shell) | .sh (Saint Helena) | The Bun JavaScript runtime's first address; it now points to bun.com | | notion.so | Notion + a short ending | .so (Somalia) | Notion's app-link address until early June 2026 | ## Do famous hacks stay on their hack? Not always. Delicious dropped del.icio.us for delicious.com after its 2008 redesign. Google said in July 2024 that goo.gl links would stop responding after 25 August 2025, then narrowed that to links with no activity. Notion's developer changelog says the links Notion generates moved from notion.so to app.notion.com in early June 2026, and that existing notion.so links still open. The pattern is clear. A hack is a short, memorable address, and many brands keep the plain name beside it. If the brand matters to you, register both. ## How do I find a domain hack for my own name? Five steps, ten minutes. The example name is *bonsai*. 1. **List the words you could use** — Write down your brand, your product and close words. Short words with a clear sound work best. 2. **Split off the last letters** — Cut the word two letters from the end. radio becomes rad.io. fish becomes fi.sh. bonsai becomes bons.ai. 3. **Match the letters to an ending** — Only real country codes work. The table below shows which letters each of our 15 endings can finish. 4. **Read it aloud, then type it** — Say the name to someone and ask them to write it. If they type the plain word plus .com, the hack costs you visitors. 5. **Check the rules and the renewal price** — Read the registry rules, then the renewal price. A low first year can hide a higher renewal. Our price table prints both. ## Which of our endings can finish a word? Each example is a pattern, not a registered name. Availability is checked when you search. Every ending has its own page: [.ai](https://pearlcay.com/ai-domain/ "What is a .ai domain, and who can register one?"), [.io](https://pearlcay.com/io-domain/ "What is a .io domain, and what about the Chagos question?"), [.gg](https://pearlcay.com/gg-domain/ "What is a .gg domain, and who can register one?"), [.co](https://pearlcay.com/co-domain/ "What does .co stand for, and who can register it?"), [.me](https://pearlcay.com/me-domain/ "What is a .me domain, and is it only for personal sites?"), [.tv](https://pearlcay.com/tv-domain/ "What is a .tv domain, and what does Tuvalu get from it?") and the rest on the [extensions page](https://pearlcay.com/extensions/ "Short domain extensions"). | Ending | Place | Finishes words ending in | Splits that work | First year | Worth knowing | | --- | --- | --- | --- | --- | --- | | .ai | Anguilla | -ai | bons.ai, samur.ai | $86.99/year | Sold for at least 2 years, as its registry requires | | .io | Chagos Islands | -io | rad.io, stud.io | $35.99/year | The Chagos question is covered in the retired country codes guide | | .gg | Guernsey | -gg | e.gg, di.gg | $57.99/year | Sold one year at a time; gamers read it as 'good game' | | .sh | Saint Helena | -sh | fi.sh, wi.sh, fla.sh | $50.49/year | Developers read it as 'shell' | | .so | Somalia | -so | al.so, tor.so, espres.so | $62.99/year | Reads as the word 'so' | | .co | Colombia | -co | dis.co, mexi.co, ta.co | $33.99/year | Short names can be registry premiums | | .me | Montenegro | -me | ho.me, na.me, ga.me | $18.99/year | Reads as 'me': suits personal sites | | .tv | Tuvalu | -tv | hd.tv, ip.tv | $28.49/year | Reads as television: suits video and streaming | | .cc | Cocos Islands | -cc | Rare: few words end in cc | $37.99/year | Sold with Domain protection only (included in the price) | | .vc | Saint Vincent and the Grenadines | -vc | Rare: few words end in vc | $29.49/year | Investors read it as 'venture capital' | | .ac | Ascension Island | -ac | lil.ac, zodi.ac, alman.ac | $50.49/year | Often read as 'academic' | | .fm | Micronesia | -fm | Rare: few words end in fm | $95.49/year | Reads as FM radio: suits radio and music | | .ws | Samoa | -ws | ne.ws, vie.ws, windo.ws | $25.99/year | Fits plural words | | .pw | Palau | -pw | Rare: few words end in pw | $20.49/year | Often read as 'password' | | .la | Laos | -la | vanil.la, gorill.la, vil.la | $31.49/year | Also reads as 'LA' | Prices per year, first year, on 2 November 2026. Renewals are on the [pricing page](https://pearlcay.com/pricing/ "How much does a short domain cost per year?"). A .ai is billed for at least 2 years. ## Do country rules apply to a domain hack? Yes. The ending belongs to a country or territory, and its registry sets the rules. In 2010, Libya's registry removed vb.ly, a link shortener, citing Libyan law, according to The Register. The same year, .ly names under four characters were closed to people outside Libya. Read the rules of an ending on its extension page before you register. A .ai is sold for at least 2 years and a .gg for one year at a time. Registration time: usually within minutes of the top-up being credited; a few island registries (.gg among them) can take up to a day to confirm a new name. ## Does a domain hack cost more to keep? It can. Check the renewal before you pay the first year. A .io is $35.99/year the first year and $62.99/year after. A .ai is $86.99/year at every renewal, billed for at least 2 years. The [price table](https://pearlcay.com/pricing/ "How much does a short domain cost per year?") prints both figures for every ending. Short names can also be registry premiums, priced by the registry. Taco Bell bought ta.co directly from the .co registry ([Domain Name Wire, 2015](https://domainnamewire.com/2015/09/28/another-co-win-taco-bell-using-ta-co/)). Read [why some names cost more](https://pearlcay.com/registry-premium-domains/ "Why do some .ai, .io or .gg names cost more?") before you fall for a name. ## Can the ending change its policy? Yes. A country-code registry can change hands or change its rules. The .ai registry moved to Identity Digital in January 2025. Its chief strategy officer said that since then, transfers include a 2-year extension ([Domain Name Wire, 23 January 2025](https://domainnamewire.com/2025/01/23/identity-digital-is-now-managing-ai-domains-heres-what-this-means-for-registrants/)). The future of .io depends on the UK and Mauritius agreement on the Chagos Islands. What is decided and what is not, with dates, is in the guide on [retired country codes](https://pearlcay.com/retired-country-code-domains/ "What happens when a country code domain is retired?"). ## Does a country-code ending change how Google sees my site? For some endings, no. Pearlcay checked Google's list on 2 November 2026: 9 of the 15 endings it sells (.ai, .cc, .co, .fm, .io, .la, .me, .tv and .ws) are among the country-code endings Google treats as generic, so they carry no country signal. .gg, .sh, .so, .vc, .ac and .pw are not on the list, so Google's general rule applies: a country-code ending points to a country. Google says the list may change. If your audience is worldwide, add explicit signals such as hreflang, as Google advises. ## How do I register a domain hack at Pearlcay? Type the whole name with its ending in the search box. Most registries answer live. A few, such as .io and .gg, show 'confirmed at order': the registry is asked when you order. A failed registration does not cost you: if a domain cannot be registered (taken in the meantime, refused by the registry), the full amount goes back to your balance. You pay in crypto from a prepaid balance: BTC, USDT, USDC, ETH, SOL, LTC, from $25. There is no KYC: one email address per domain, verified as ICANN rules require. A .cc is sold with [Domain protection](https://pearlcay.com/domain-protection-option/ "What is Domain protection, and do I need it?"): the domain is registered in the name of DomaineGoat LLC, and you stay the beneficiary. ## Search your domain hack Type the whole name with its ending, for example rad.io or fi.sh. Search a domain name: https://pearlcay.com/app/domains/?q=rad.io Popular extensions: .sh ($50.49), .io ($35.99), .ai ($86.99), .me ($18.99), .co ($33.99), .tv ($28.49) ## Domain hack questions ### Is a domain hack a normal domain name? Yes. It is an ordinary registration on a country-code ending. Only the way you read it is a trick. ### Which ending is best for a domain hack? The one whose letters finish your word. Check the table above, then compare renewals: a .me renews at $18.99/year, a .sh at $50.49/year, a .io at $62.99/year. ### Do domain hacks rank worse on Google? Not for the endings Google treats as generic (.ai, .cc, .co, .fm, .io, .la, .me, .tv, .ws): they carry no country signal. ### Can I buy a domain hack without showing an ID? At Pearlcay, yes. You give one email address per domain, verified as ICANN rules require. No ID document, no selfie. Domains are registered through our ICANN-accredited registrar partner. ### What happens if the country changes the rules? It depends on the registry. The guide on [retired country codes](https://pearlcay.com/retired-country-code-domains/ "What happens when a country code domain is retired?") lists real cases: .yu, .tp and .an each had years of notice. ## Sources 1. [Domain hack](https://en.wikipedia.org/wiki/Domain_hack) — Wikipedia (checked 2026-11-02) 2. [RFC 1591: Domain Name System Structure and Delegation (March 1994)](https://www.rfc-editor.org/rfc/rfc1591) — IETF / RFC Editor (checked 2026-11-02) 3. [Root Zone Database (country-code domains and their places)](https://www.iana.org/domains/root/db) — IANA (checked 2026-11-02) 4. [Make Way for youtu.be Links (21 December 2009)](https://blog.youtube/news-and-events/make-way-for-youtube-links/) — YouTube Official Blog (checked 2026-11-02) 5. [.ly (bit.ly, vb.ly and the Libyan registry rules)](https://en.wikipedia.org/wiki/.ly) — Wikipedia (checked 2026-11-02) 6. [Libya viceclamp: vb.ly taken down by NIC.ly (7 October 2010)](https://www.theregister.com/2010/10/07/libya_viceclamp) — The Register (checked 2026-11-02) 7. [cr.yp.to home page](https://cr.yp.to/) — D. J. Bernstein (checked 2026-11-02) 8. [Another .CO win: Taco Bell using ta.co (28 September 2015)](https://domainnamewire.com/2015/09/28/another-co-win-taco-bell-using-ta-co/) — Domain Name Wire (checked 2026-11-02) 9. [Delicious (website)](https://en.wikipedia.org/wiki/Delicious_(website)) — Wikipedia (checked 2026-11-02) 10. [Google URL Shortener links will no longer be available (18 July 2024, updated 1 August 2025)](https://developers.googleblog.com/en/google-url-shortener-links-will-no-longer-be-available/) — Google for Developers (checked 2026-11-02) 11. [Bun: a fast all-in-one JavaScript runtime](https://bun.sh) — Bun (checked 2026-11-02) 12. [Notion app links in API responses use the new app domain (15 July 2026)](https://developers.notion.com/page/changelog) — Notion developers (checked 2026-11-02) 13. [Managing multi-regional and multilingual sites](https://developers.google.com/search/docs/specialty/international/managing-multi-regional-sites) — Google Search Central (checked 2026-11-02) 14. [Identity Digital is now managing .ai domains: what this means for registrants (23 January 2025)](https://domainnamewire.com/2025/01/23/identity-digital-is-now-managing-ai-domains-heres-what-this-means-for-registrants/) — Domain Name Wire (checked 2026-11-02) 15. [.ai (Anguilla): registration, renewal and transfer rules](https://docs.aws.amazon.com/Route53/latest/DeveloperGuide/ai.html) — Amazon Route 53 (checked 2026-11-02) 16. [.gg (Guernsey): registration and renewal rules](https://docs.aws.amazon.com/Route53/latest/DeveloperGuide/gg.html) — Amazon Route 53 (checked 2026-11-02) --- Pearlcay: Pearlcay registers short country-code domains, most of them island extensions: .ai (Anguilla), .io (Chagos Islands), .gg (Guernsey), .sh (Saint Helena), .tv (Tuvalu) and ten more, paid in crypto with no KYC: no ID, only one verified email per domain. It is run by DomaineGoat LLC, a company registered in Panama; domains are registered through its ICANN-accredited registrar partner. A .ai costs $86.99/year, sold for at least 2 years.