To check if a domain is available, type it into a registrar or domain search box for an instant available-or-taken answer, then confirm with a WHOIS or RDAP lookup. If the lookup returns no registration record (you'll see words like "No match" or "NOT FOUND"), the name is free to register; if it returns a registrant, registrar and creation date, it is already taken. Never judge availability by visiting the URL in a browser — a registered domain often has no visible site. This guide covers each method, what the status words mean, and how to chase a name that is already registered.
The quickest check is the search box every registrar puts on its homepage, and the one on this site. Type your candidate (with or without the extension) and it queries the registry in real time, returning "available" with a price, or "taken" with suggested alternatives. This is the right first step for almost everyone because it is instant, shows pricing, and usually offers near-misses across other extensions. Use our domain name search to start, and feed it candidates from the domain name idea generator if you're still brainstorming.
One caution: some search boxes "front-run" — they may register a name you searched if you don't buy it quickly, or simply suggest you hurry. Reputable registrars don't do this, but it's a reason to buy promptly once you find a winner rather than searching the same name repeatedly across many sites.
To verify availability authoritatively, query the registration database directly. WHOIS is the original protocol: it returns the registrant (often masked by privacy), the registrar, and the creation, update and expiry dates. RDAP (Registration Data Access Protocol) is its modern successor, standardized through ICANN and the IETF, returning structured JSON and supporting proper access controls. Most lookup tools now use RDAP under the hood, but the question they answer is identical: is this domain registered, and with what details?
Reading the result is simple. If the lookup says something like No match for DOMAIN or NOT FOUND, the name is unregistered and available. If it returns fields such as "Registrar," "Creation Date" and "Registry Expiry Date," the domain is taken — and the expiry date tells you when it might next become available if the owner lets it lapse. ICANN's lookup at lookup.icann.org is a neutral, registrar-independent place to run this.
| Status | Meaning | Can you register it? |
|---|---|---|
| Available | No registration record exists | Yes, at standard price |
| Registered / Taken | Someone already owns it | No — only by purchase or backorder |
| Premium | Unregistered but registry-priced higher (short/keyword) | Yes, at a premium price |
| Reserved | Held back by the registry/registrar | No — not offered to the public |
| Pending delete / Redemption | Expired, in the drop cycle | Not yet — may free up soon or go to auction |
| Aftermarket / For sale | Owned, listed by its holder | Yes, via marketplace at the seller's price |
A domain being available to register is not the same as it being legally safe to use. Before you commit, search the U.S. Patent and Trademark Office's free Trademark Electronic Search System (TESS) at uspto.gov for your name and close variants, plus a plain web search for existing companies. If your intended use collides with a registered mark in your industry, an available domain can still land you in a dispute or force a rebrand. This step takes minutes; skipping it can cost a brand. The full naming workflow is in how to choose a domain name.
| What you see | What it usually means |
|---|---|
| Shows "taken" but no website loads | Parked, held by an investor, or email-only — registered, just not built |
| Available on one registrar, taken on another | Caching lag, or one tool front-ran your search — verify with WHOIS/RDAP |
| "Premium" with a four-figure price | Registry priced it high for being short/keyword — still buyable, just costly |
| WHOIS data hidden / "Redacted for Privacy" | Normal — privacy masks the registrant; the domain is still registered |
| "Pending delete" status | Expired and dropping soon; consider a backorder |
| Available but browser autocompletes a site | Browser history of a past owner — ignore; trust the lookup |
A registered name is not always out of reach. Three routes exist. First, buy it from the current owner through a marketplace or broker — this works if they'll sell, but premium names command premium prices. Second, place a backorder: a service monitors an expiring domain and attempts to register it the instant it drops. Sought-after drops typically go to auction rather than to the first backorder. Third, simply wait out the expiry. A lapsed domain runs through a grace period and a roughly 30-day redemption window (where the owner can reclaim it) before it deletes and may become freely available — but there is no guarantee, and desirable names are usually caught the moment they drop. To register a name you can get, follow how to register a domain name.
When you're screening a long list — say twenty brand candidates, or one name across fifteen extensions — check them in bulk rather than one by one. Most registrars and dedicated availability services offer a bulk tool: paste your list, and it returns availability and pricing for every entry in a single pass. This is how investors and brand teams work, and it pairs naturally with a generator. Produce a big candidate list from the idea generator, paste it into a bulk checker, and you'll know your real options in seconds instead of an afternoon. Common pitfalls to dodge are covered in domain name mistakes to avoid.
The fastest way is a registrar or domain search box: type the name and it instantly shows available or taken, with prices. To confirm, run a WHOIS or RDAP lookup, which queries the registry directly. If WHOIS returns no registration record (often the words 'No match' or 'NOT FOUND'), the domain is available; if it returns registrant, registrar and creation-date details, it is already registered.
WHOIS is the long-standing protocol for looking up who registered a domain and when. RDAP (Registration Data Access Protocol) is its modern, structured replacement, standardized through ICANN and IETF, returning machine-readable JSON and supporting access controls. Most lookup tools now query RDAP behind the scenes. Both answer the same core question: is this domain registered, and if so, with what details.
A premium domain is unregistered but the registry has priced it higher than standard because it is short or keyword-rich, so it is available but costs more, sometimes a lot more. A reserved domain has been held back by the registry or registrar and is not available to register at all, such as protected geographic or sensitive terms. Both differ from a plain available result, which you can register at the normal price.
A registered domain does not need a live website. It may be parked (showing ads or a 'for sale' page), held by an investor, used only for email, or recently registered but not yet built. WHOIS or RDAP will still show it as registered. So 'no site appears' never means 'available' — always confirm with a lookup rather than by visiting the URL in a browser.
Sometimes. If the current owner will sell, you can buy it through a marketplace or a broker, often for far more than registration cost. If the domain is expiring, you can place a backorder so a service tries to grab it the moment it drops, though popular names go to auction. You can also wait out the expiry and redemption period, but there is no guarantee it will ever become freely available.
Use a bulk domain check tool, offered by most registrars and dedicated availability services. You paste a list of names or a name across many extensions, and it returns availability and pricing for all of them in one pass. This is far faster than checking one at a time and is how investors and brand teams screen dozens of candidates before settling on one.
Found an open name? Read how to choose a domain name to pressure-test it, dodge the traps in domain name mistakes to avoid, and when you're ready follow how to register a domain name. Still brainstorming? Use the domain name idea generator or run a fresh domain name search. Back to the names.center homepage.