What a domain lookup actually tells you
Every checker on the internet collapses the answer into two words: available or taken. The registry is saying something narrower than that, and the gap between the two is where people lose money.
A lookup asks one registry a single question: do you hold a registration record for this exact string? RDAP, the protocol behind modern lookups, answers with a document if a record exists and a 404 if it does not. That is the whole of it. The registry is not asked, and does not answer, whether it would sell you the name.
Five states, two answers
| State | Lookup says | Can you get it? |
|---|---|---|
| Never registered | unregistered | Usually yes, at the standard price |
| Premium or reserved | unregistered | Only at a price the registry sets, sometimes in the thousands. Nothing in the lookup warns you |
| Registered and in use | registered | Only by negotiation, if at all |
| Registered and parked | registered | Often for sale, usually at a speculator's price |
| Expired, in redemption | registered | No. Only the former holder can restore it, for a window of weeks |
Two of the five states report as unregistered, and one of those is a name you may not be able to afford. Three report as registered, and one of those may become free within a month or two. A binary answer hides all of it.
Why our checker says “unknown” sometimes
Registries go down, rate-limit, and occasionally answer with something that is neither a record nor a clean 404. Most checkers treat anything that is not a successful lookup as “available”, because a green result is what people want to see. We report it as unknown instead.
The reasoning is one-sided. A wrong “registered” costs you a name you could have had. A wrong “unregistered” costs you a logo, a letterhead, a launch date and the argument with whoever already owns it. Those are not symmetric errors, so the checker is not symmetric either.
Privacy redaction is not absence
Since data-protection rules tightened, registration records for most domains show almost nothing about the holder. Registrant name, address and email are commonly replaced with a privacy service or removed altogether. This means a record that looks empty is still a record. If the lookup returned a document at all, the name is registered, however little that document says.
Questions
The domain expired last month and still shows as registered. When can I take it?
Not on a schedule you can plan around. After expiry most registrars run a grace period, then a redemption period in which only the previous holder can restore the name, then a short pending-delete window, and only then does it drop. The whole sequence commonly runs to two or three months, and the holder can renew at any point during it. Treat an expiring domain as unavailable until it actually drops, and never as the basis for a launch date.
Why does a checker on a registrar's site disagree with this one?
Registrars answer a different question: can I sell you this right now, and for how much? That is more useful at the point of purchase and less useful for understanding the name. A registrar may show a premium name as available with a four-figure price, or show a name as taken because it is on their own reserved list. Both answers are correct for their purpose.
Does a whois privacy service hide whether a domain is registered?
No. Privacy services replace the contact details in the record, not the record. Registration status is the one thing that is always visible, because the registry has to be able to say it holds the name.
Related
- The endings you cannot simply buyWhere unregistered and available are different questions
- Run a lookupTen TLDs, live from the registries
Reviewed 2026-09-20. General guidance about domain registration, not advice about any particular name.