Domain search and registration
Check a domain name in one second
Search any name across every extension we carry. You will see whether it is available, what it costs to register, and what it costs to renew — all three, before you commit to anything.
Checking more than one? Try the bulk checker (up to 200 at once) or the extension sweep.
Why buy your domain here
↺
Renewal prices shown up front
Most registrars show you the first-year price and bury the renewal. We show both, in the same result, before you decide.
⛨
Free WHOIS privacy where it is allowed
Privacy protection is included rather than upsold, on every extension whose registry permits it.
⇄
No lock-in
Your auth code is yours on request. Transferring away is a right under ICANN policy, not a favour.
◎
Independent reference, not a sales pitch
Thirty-six extensions documented properly, including the ones we would tell you not to buy.
Popular extensions
Every extension has a registry operator, a set of rules, and a renewal price. Here is what each one actually is.
The most recognised extension in the world, and still the one buyers assume by default. Its price-cap agreement and thin-registry structure matter more than most owners realise.
The technology sector's favourite extension is a country code belonging to a territory whose sovereignty changed hands in 2024. What that means for registrants is the question nobody answers clearly.
A Caribbean island of roughly fifteen thousand people now earns a material share of its national budget from two letters, and moved to a new registry arrangement in 2025.
The most successful repurposing of a country code into a global commercial namespace, and a useful lesson in what that costs.
Google paid a record sum at auction for this extension, then made it the first where every site must serve over HTTPS or not load at all.
The developer's extension, with the same mandatory-HTTPS rule as .app and the same capacity to surprise anyone who registers one blind.
Carries a credibility no marketing budget can buy, and survived one of the most consequential governance fights in domain history.
The natural second choice when the .com is taken, with no eligibility rules and the same registry operator behind it.
Free domain tools
Nine tools, no account required. Six run on our registry partner's API; three use the public RDAP and DNS protocols directly.
Domain Availability Check
Type any name and see instantly whether it is available, what it costs to register, and — the number most registrars hide — what it costs to renew.
Bulk Domain Availability Check
Paste a list, get a sortable table with pricing and a CSV export. Built for portfolio owners, brand protection, and anyone who has ever checked names one at a time.
Check a Name Across Every Extension
Enter a name once and see where it is free across the extensions that matter, with prices attached.
Domain Name Generator
Give it a word. It returns available names built around that word, priced, across a range of extensions.
Multi-Year Domain Price Calculator
See the total and the effective annual rate for every term from one year to ten, so a long registration is a decision rather than a guess.
WHOIS & RDAP Domain Owner Lookup
Registrar of record, registration and expiry dates, status codes, nameservers, and DNSSEC status — pulled live from RDAP, the protocol that replaced WHOIS.
Extensions by purpose
Grouped by what people actually use them for, rather than by the order ICANN happened to delegate them.
Classic & Legacy
The original generic extensions, delegated in the 1980s and 1990s, still carrying the most trust and the most competition.
Business & Professional
Extensions aimed at companies, professional practices, and organisations that want a credible commercial address.
Technology & Startups
The extensions software companies, developers, and technology startups actually use, several with technical requirements buyers do not expect.
E-commerce & Retail
Extensions built for online selling, where the gap between the first-year price and the renewal price matters most.
Creative, Media & Personal
Extensions used for portfolios, publishing, video, and personal brands.
Guides
The mechanics behind domain names, written for people who need to make a decision rather than pass an exam.
How to Check Domain Availability, and Trust It
What a domain availability check actually tells you, why two registrars can disagree, and how to read a result properly.
How to Choose a Domain Registrar
The criteria that separate registrars in practice, and the ones that only look like they matter.
What Domain Names Really Cost
Registration, renewal, transfer, restoration, and premium pricing, and which of those numbers you should actually plan around.
Free Domain Registration: The Honest Answer
What is genuinely free, what is a bundled first year, and what is not a domain at all.
How to Check Who Owns a Domain Name
What RDAP and WHOIS reveal in 2026, what GDPR removed, and the routes that still work.
What Happens When a Domain Expires
Every stage from expiry to deletion, with the day counts, the costs, and the point of no return.
Start with the name
Search it, price it, and see the renewal cost before you spend anything.