OneWord.domains Alternatives Compared (Nov 2026)
We run Vacant Domains, one of the tools compared here, so read this page with that in mind. An earlier version of this post said OneWord.domains was no longer maintained. We could not support that claim and have removed it. OneWord.domains is online and selling access as of November 2026.
The facts below come from each tool's public pages, fetched on November 2, 2026. We did not buy the paid plans, so paid features are described the way each vendor describes them. Prices and counts on these sites can change.
| Tool | Price | Stated coverage | Registrar prices | Stated availability updates |
|---|---|---|---|---|
| OneWord.domains | $149 once | 1,303,547 names, 94 TLDs | Several registrars per TLD, registration price | No schedule on its public pages |
| Unique Domains | $39 a month | 34,050,675 names, 505 endings | Nine registrars: first year, renewal, transfer | Rolling, with in-demand words rechecked most often |
| Mononames | $49.99 or $69.99 once | Over 20 million names, 593 TLDs | None listed on its homepage | Several times a month |
| NameStall | Free with limits, or $19 a month, or $100 a year | 25 word lists, about 90 extensions | None listed on its pricing page | Checked when you search, it says |
| Vacant Domains | $79 once | About 8.49 million rows, about 6.9 million available, 51 TLDs | Up to four registrars per TLD: registration, renewal, transfer | About a two-week cycle |
The name counts are not like for like. Each tool uses its own word list and TLD set, and the Vacant Domains count includes prefix and suffix variants.
OneWord.domains
OneWord.domains builds its list from a curated set of 27,625 English words, some tagged French or Spanish. The $149 lifetime membership includes filtering and sorting by a popularity score, future updates and 2,000 credits for DomainsGPT, its AI name generator.
Its public pages do not state how often availability is updated, so we cannot say. As a small test, we looked up 40 of the names on its public .io page in the .io registry's RDAP service, and none had a registration record. The aftermarket section looks older. The 100 rows on its GoDaddy aftermarket page were marked Ended, with dates from May 13 to June 10, 2026, and its Namecheap aftermarket page showed no rows.
Where it beats Vacant Domains. It covers 94 TLDs against our 51. A smaller curated word list leaves less to sort through. Each listed name shows a popularity score, which we do not offer as a filter, and its public TLD pages show the first 100 names of a list without signing in. The membership also includes an AI generator, and we do not have one.
Where Vacant Domains fits better. The one-time price is lower. Our word list is larger, with 72,212 plain words in English, Spanish, German and French. Our prefix and suffix variants cover every TLD, while the variant lists OneWord.domains shows are for .com. Our price pages include renewal and transfer prices, and /browse can filter to standard-price names. The public OneWord.domains .ai page does not flag registry premium names.
Two examples show how much the word lists matter. On .ai, OneWord.domains lists 2,166 names, and our catalog had 28,586 plain words at standard price on November 2. On .com, its page says no available one-word names are left, and we counted 1,835 plain words at standard price on October 26. Half of those have 11 or more letters and 832 are German, so short English .com words are scarce in both tools.
Unique Domains
Unique Domains is the broadest research product here. It says each name carries a price, renewal cost, history and trademark risk. Full Access costs $39 a month, plus $29 for each extra seat, and includes 40 full domain analyses a month, five saved-search Radars and CSV exports of up to 2,000 rows. There is no free plan or trial, and refunds are available within 7 days. Without paying, you can see the first 20 names of a public list and check one name a day each in its WHOIS and availability tools.
Where it beats Vacant Domains. It covers 505 endings against our 51. It compares nine registrars against our four and reads their prices each morning. It also tracks one-word names at auction on seven venues, reports domain sales and estimates value. We have no auction data, appraisals or trademark checks. Its full analysis reads the registry record and DNS when you run it, which is stronger than any stored list for a single name. If you only need it for a month, $39 is less than our $79.
Where Vacant Domains fits better. A one-time payment costs less from the third month onward, and there are no monthly limits to track. Our whole catalog is rechecked on about a two-week cycle. Unique Domains reported 65,585 names rechecked in the prior 24 hours out of its 34 million, with in-demand words rechecked most often, so a less popular name may wait longer. We saw no prefix or suffix filter on its public pages. It is also a larger product, which may be more than you need if you want a filterable list of names.
Mononames
Mononames sells a one-time license at $49.99 for the browser edition and $69.99 for the edition that adds offline lists. It says it covers over 20 million names and 593 TLDs and updates several times a month. Each list shows popularity, grammatical class, sentiment and whether the registry treats a name as premium. It also includes more than 100,000 domain hacks and more than 8,500 one-emoji domains.
Where it beats Vacant Domains. Both editions cost less than our $79, and it covers far more TLDs. It has 65 prefix and suffix lists for .com, far more than our ten variants. The downloadable lists also work offline, and we have no export.
Where Vacant Domains fits better. Our variants cover all 51 TLDs, while Mononames lists variations for .com, .net, .org, .ai and .io. Our price pages compare registrars, and its homepage lists no such comparison. Its homepage also does not state which languages its word lists cover, while ours has four.
NameStall dictionary search
NameStall's dictionary domain tool searches word lists for unregistered names. Its selector has 25 lists, including four English lists, a medical list and about 20 languages such as Czech, Finnish, Polish and Turkish. It offers about 90 extensions, many of them second-level endings such as .com.au. The free version has limited access to its tools. Paid access costs $19 a month or $100 a year and adds a filter for available and registered names, favorites and export. We did not run searches on it, so we cannot speak to its results.
Where it beats Vacant Domains. You can start for free, and it covers many more languages than our four. If you want a word in Polish or Turkish, it is the better starting point. It also says it checks availability when you search, while our results come from stored checks on about a two-week cycle.
Where Vacant Domains fits better. Our catalog can be filtered across TLDs by length, language, premium status and word category, and our price pages compare registrars. Our $79 is a one-time payment, while paid NameStall access is a subscription.
What Vacant Domains covers
Vacant Domains is a database of unregistered real-word domains across 51 TLDs. On November 2, 2026 it held about 8.49 million rows, about 6.9 million of them available, and 230 rows had gone more than 30 days without a check. Availability is rechecked on about a two-week cycle through five registrar APIs: Namecheap, Name.com, NameSilo, Dynadot and Spaceship. A name can still be registered between checks, so confirm it at the registrar. In a small test of our own list, the first 40 standard-price plain .com words had no registration record in the .com RDAP service.
/browse filters by TLD, length, language, premium status, word category, five prefixes (get, go, join, try, use) and five suffixes (ai, app, hq, hub, labs), and sorts by brandability score. Access is a one-time $79 payment, and there is no free tier. The free parts are the public pages: TLD pages with sample names, domain length pages and the registrar price comparison. Price comparison is per TLD, so a registry premium name can cost more than the listed price.
Registrar search, marketplaces and generators
Registrar search is free and the place to confirm a specific name, and it works best when you already have a name in mind. Our guide explains how to check domain availability and what the results mean.
Marketplaces such as Sedo, Afternic and Dan.com sell names that are already registered, at the owner's price. They make sense if the name you want is taken and you have the budget.
Generators combine words and affixes into new names, and you still have to check each result. Our comparison of domain name generators and real words covers when each approach works.
Which tool fits which search
- Research on individual names, including auctions and trademark risk: Unique Domains, if a monthly plan suits you.
- The most TLDs for a one-time price, or offline lists: Mononames.
- A curated English word list with popularity scores: OneWord.domains.
- Words from languages beyond English, Spanish, German and French: NameStall.
- Filtering across 51 TLDs by standard price and prefix or suffix, then comparing registrar prices: Vacant Domains.