Domain name mashup generator: join two word lists into domain names and check which are free
In short: Enter two lists of words and see which joined names (brightledger.com, northharbor.com) look unregistered, shortest first. Limit: Likely available is not a guarantee: premium, reserved and blocked names can look free.
A domain name mashup generator joins every word in one list to every word in another and checks which results are unregistered. Enter up to 10 words in each list, pick extensions, and the 60 shortest names are checked against the registry's RDAP server and DNS, likely available first. Options add the reverse order (B then A) and a hyphenated version.
Price: this tool is free. Checking a whole email list is from $9/mo, and the first 100 checks are free with Google, no card. Check your list free nowSee pricing
Sample result
northloop.example looks available. Its registry has no record of it.
- Name
- northloop.example
- Order
- A then B
- Basis
- No RDAP record, no nameservers
What this means for you
Pairs from your own two lists, shortest first; the registrar confirms before you pay.
- Every A word with every B word
- Optional reverse and hyphen
- Shortest 60 checked a run
- CSV download
- Mashups
- RDAP
- Word lists
By SimpleVerifier Team · Last updated
How do I combine two word lists into domain names?
- Enter up to 10 words in list A and up to 10 in list B, separated by commas or new lines.
- Tick the extensions to try, and optionally add the reverse order or hyphenated versions.
- Press Combine and check. Every word in A is joined to every word in B, and the 60 shortest names are checked, 20 at a time, against each registry's RDAP server and DNS.
- Copy the likely-available names or download the CSV, then confirm the price at a registrar.
Example
- You enter
- List A
bright, north, swift, list Bledger, harbor, loop, extension .com, no options ticked. - You get
- 9 names, shortest first, such as
northloop.com,swiftloop.comandbrightloop.com, each marked Likely available, Registered or Unknown. - Limits
- 60 names a run, checked 20 at a time against each registry's RDAP server and DNS; 100 domains a minute per connection.
How do I combine words into a domain name?
Put the words that describe what you do in one list and the words that describe the feel or the audience in the other, then run it. With bright, north and swift in list A and ledger, harbor and loop in list B you get nine joined names, such as brightledger, northharbor and swiftloop. The shortest are checked first.
Each name is checked the same way as in the bulk domain availability checker: the registry comes from IANA's RDAP bootstrap file (RFC 9224), the registry is asked for the name, and DNS is checked for nameservers. No record and no nameservers means likely available.
How is this different from the available domain name generator?
The available domain name generator starts from a few keywords and adds fixed prefixes and suffixes such as get and hq. This tool works from two lists you write: every word in A is joined to every word in B. Use it when you already have a pool of words and want to see which pairs are free.
It joins words exactly as typed, with nothing between them. It doesn't check whether a pair reads badly where two words meet (a joined name can spell something else), so read each shortlisted name aloud and as one word before you buy. The length and pronounceability checker flags the common problems.
Does likely available mean I can register it?
Not always. It means the registry has no record and the name has no nameservers. Premium, reserved and blocked names can still look free, and the registrar's checkout shows the real price. Availability can change within minutes, so check again at the registrar.
Unknown means we could not tell, usually because the extension's registry publishes no RDAP. Unknown names are never shown as available.
Who uses this tool, and for what?
- Founders
- Test every pairing of the words that describe the product with the words that describe the mood, and keep the free ones.
- Agencies
- Give a client a shortlist from their own words, rather than a list built from ours.
- Cold emailers
- Pair your brand word with endings such as mail, team or hq to find separate sending domains. The cold email domain finder does this from a domain.
What can’t this tool tell you?
- Likely available is not a guarantee: premium, reserved and blocked names can look free.
- Extensions without RDAP, including .io, .ai and .co, show unknown unless DNS proves the name is registered.
- 60 names are checked a run, and 100 domains a minute per connection across the domain availability tools.
- Words are joined as typed: it doesn't check how a pair reads where the words meet, or for trademarks.
- Prices are not shown; registrars set them.
Common questions
- How do I combine two lists of words for domain names?
- Enter one list in A and one in B. This tool joins every word in A to every word in B, and checks the shortest 60 names against the registry through RDAP and DNS.
- Is this mashup generator free?
- Yes, it is a free tool with no account or card. Each run checks 60 names, and one connection can check 100 domains a minute across the domain availability tools.
- What if I have more than 60 combinations?
- The 60 shortest are checked a run. Narrow the lists or the extensions to see the rest, since two lists of 10 words make 100 names for each extension.
- Should I use the hyphenated version?
- Only as a fallback. A hyphen has to be said aloud and is often dropped when typed. The option is there because some pairs are free only with one.
- Does likely available mean I can register it?
- Not always. It means the registry has no record and the name has no nameservers, the two public signals of an unregistered domain. Premium, reserved and blocked names can still look free, so the registrar's checkout, with its price, is the final word.
- Why do .io, .ai and .co names show unknown?
- Their registries don't publish RDAP in IANA's directory (checked 19 October 2026), so there is no registry record to read. A name with nameservers in DNS shows as registered; otherwise it shows unknown, never available. Check those at a registrar.
Sources
Buying sending domains for outreach? Verify your lead list before the first send.
A new domain has no sending reputation yet, and every hard bounce from its first campaigns counts against it. Registering the domain is the cheap part; the list you send to decides whether it lands.
- 100 free checks with Google, no card, on the list you plan to send to
- Pro is $39/mo: the first 100,000 emails a month at full speed, then slower, never cut off
- Dead addresses split out before the send, not discovered after as bounces
Plans from $9 a month, cancel anytime, no contract. Sign in with Google and your first 100 email checks are free, no card. The free tools stay free either way.