Short answer. Atom's appraisal is one of the better free automated tools, and it often shows comparable sales. The alternative to use when you are about to set a price, place a bid or answer an offer is a comps search where every sale is cited and filterable. SoldComparables shows up to 50 scored comps per search with price, date, venue and a source link, keeps wholesale and retail apart, and prices lists of up to 200 names at once on Investor.
Atom is not a bad tool, and this page does not pretend it is. Domain Name Wire called its supporting data the strongest part of the product in its May 2026 review. The question is narrower: what do you do after you see Atom's number and need to stake money on it? That is where a second, checkable view pays for itself.
What Atom's appraisal gives you
Atom launched its automated appraisal in beta in July 2024 and has expanded it since. Based on the Domain Name Wire reviews from May and June 2026 and Atom's own extension listing, the tool currently gives you:
- An appraised value in USD for one name, free to use on Atom's site.
- A separate Domain Score. Atom's CEO has said the score rates the name's overall quality for an investor, while the value estimates what it may be worth today, so a high score does not always mean a high value.
- Comparable sales for many names, though not for every name.
- Supporting data such as sell-through rates for root words, how many extensions the name is registered in, and whether the term is used by real brands or apps.
- A Chrome extension that appraises a name you hover over.
- Values above 1 million USD. Atom used to cap the display at 1 million and lifted that cap around August 2026.
Coverage goes beyond .com to .ai, .io, .co, .app and others, though reviewers found it could not value thin extensions such as .homes.
Where an automated number needs a second look
Every automated appraiser, Atom included, produces a figure for almost any input. That is convenient for sorting names and risky for pricing them. Domain Name Wire's May 2026 test put Atom's numbers next to real outcomes:
| Name | Atom appraisal | Reported figure | What it shows |
|---|---|---|---|
| kickers.ai | 34,000 USD | 8,000 USD sale | .ai values for recent sales often ran well above the sale price |
| MakeMatter.com | 4,499 USD | 15,000 USD sale | An end-user sale can sit far above a model's view |
| PressBridge.com | 8,799 USD | 5,000 USD sale | Reasoning held up, the figure still ran high |
| expedite.io | 20,500 USD | 14,995 USD sale | Close, a little high |
| MOTG.com | 10,499 USD | 14,888 USD sale | Judged fair |
| VJN.com | 114,766 USD | 39,000 USD Afternic listing | No comps were shown for this value |
Source: Domain Name Wire, "Atom domain appraisals", May 25, 2026. Several of these figures were reasonable, and the reviewer said so. The pattern that matters for a buyer or seller is the last row. A precise looking number with no comparable sales behind it is the one you cannot defend in a negotiation.
How SoldComparables builds the value
Every estimate starts from 128,867 recorded domain sales between 2021-05-28 and 2026-05-28, each from a public sales report and each at least 1,000 USD. Atom.com is one of the venues in that data, next to GoDaddy, Afternic, Sedo, DropCatch, NameJet, Dynadot and others. Every sale links to the report it came from. We do not invent sales.
For your name, the search finds semantically similar sold names, so a name built on "pay" also finds sales built on "wallet" or "checkout". Each comp gets a relevance score from 0 to 100 and up to three plain reasons it was picked. The result is a low, likely and high value, wholesale and retail apart, a confidence level and a short rationale that names the comps by price and date.
When fewer than three good comps exist, the range widens and confidence drops. When no comparable sale above 1,000 USD exists, you see that plainly and no figure is printed. It is a data-backed estimate, not a certified appraisal and not a promise of a sale price. The methodology page has the full rules.
Atom appraisal vs SoldComparables comparison
| Atom appraisal | SoldComparables | |
|---|---|---|
| Price | Free to use | Pro 49 USD a month, Investor 149, Broker 399, roughly half billed yearly |
| Output | Value plus a Domain Score | Low, likely and high value, wholesale and retail apart, confidence level |
| Comparable sales | Shown for many names, not all | Up to 50 per search, each with price, date, venue and source link |
| Filter or remove comps | No | Yes, by extension, price, date, venue type, style and length |
| Names with no real comps | A value is still shown | Says so and gives no figure |
| Extra signals | Sell-through rates, extensions registered, brand usage | Relevance score and reasons for each comp |
| Lists | One name at a time, browser and extension | 200 names per list on Investor, 1,000 on Broker |
| Export and API | Not documented for public bulk use as of October 2026 | PDF and CSV, white label PDF and API on Broker |
| Who runs it | A marketplace that also sells domains | A data tool with no inventory to sell |
The last row is not an accusation. Atom runs a large marketplace, and its appraisal is useful marketing for it. It simply means a buyer may want a second view from a source with no names of its own on the shelf.
When to use which
Atom fits a quick first read on one name, the sell-through data on a root word, or a hover check in the browser while you scroll a drop list. It is free, and that is worth using.
SoldComparables fits the moments where the number turns into money: setting a buy now price, choosing a bid ceiling at an expired auction, answering an inbound offer, showing a buyer why your price is fair, or deciding which renewals to drop across a portfolio. If you work through lists, the bulk domain appraisal page shows what Investor returns for up to 200 names at once.
Plenty of investors use both. They let a free tool sort a list, then check the comps before any name is priced, bid on or sold.
Check the comps before you price or bid
You can try a search without an account: one search a day shows three comps and the estimate range. After you sign up you get one full report with every comp and the rationale. There is no free plan, and paid plans start at 49 USD a month.
If you are weighing other tools, see the EstiBot alternative, the Sedo domain appraisal alternative and our test of the best domain appraisal tool for investors. Plans and limits are on the pricing page.