A domain investor quotes you $50,000 for a name you think should cost $500. Who's right? "Worth" is a fuzzy word; price is determined by the next person willing to pay it. Here's the framework professional appraisers use, the four numbers that actually matter, and how to know when to walk away.
The four numbers that actually matter
Forget anything an "automated valuation tool" tells you. Real domain valuation comes down to four data points:
- Comparable sales — what did similar-quality names sell for recently?
- End-user demand — how many real businesses would plausibly want this exact name?
- Owner anchor — what does the current seller think it's worth, and how flexible are they?
- Your replacement cost — how much would the alternative non-premium name cost you in lost conversions over 3-5 years?
Anything else (Estibot scores, GoValue appraisals, "domain authority" tools) is noise. They're statistical models that miss context every time.
1. Comparable sales (comps)
This is the closest thing to an "objective" anchor. Domain sales are public — many marketplaces report them. The biggest database:
- NameBio — 5+ million sales records since 2003. Search by keyword, TLD, length, date range. Free.
- DN Journal — weekly sales reports for higher-value deals.
- Sedo, Afternic public sales — visible on marketplace listings.
How to use them: look for sales of domains with similar character count, TLD, semantic category, and "brandability." If boots.io sold for $8,000 last year and someone wants $80,000 for shoes.io, that's ~10x off comps and a red flag. If they want $9,500, that's defensible.
Caveat: a single comp can be an outlier. Look for 5+ similar sales to establish a range.
2. End-user demand
"Who actually needs this exact name to do business?" The answer ranges from "thousands of companies" to "literally one person."
| Example | End-user demand | Implication |
|---|---|---|
insurance.com | Tens of thousands of insurance companies | Floor is extremely high — sold for $35.6M in 2010 |
brooklynplumbing.com | ~5 plumbers in Brooklyn | Lower floor; pricing depends on which specific plumber is asking |
kxblue.com | Maybe one specific brand | Worth what that brand decides to pay (or $0 if they don't care) |
How to assess: brainstorm 5 different businesses that would want this name. If you can name 5+ realistic buyers, demand is high. If you can only think of yourself, demand is one (you).
3. Owner anchor
The current owner is a human (or a domain investor) with a number in mind. That number is partly market-based and partly emotional.
How to surface it:
- Ask via a broker. A neutral third party gets honest numbers. Brokers also smell out emotional anchors ("my grandfather registered this domain in 1998") that you can either pay around or work with.
- Make a low first offer. Their reaction reveals flexibility. A flat "no, $50k or nothing" is anchored; "I'd consider $10k" against a $15k asking means they're open.
- Walk away once. If they say no to a fair offer, leave. Many sellers come back 2–4 weeks later with a lower number once they realize you're not desperate.
4. Your replacement cost
The often-forgotten number. The alternative to buying the premium is using a free or cheap alternative. What does that COST you?
Examples:
- Premium
cars.comat $1M vs. freeget-cars.com: if 5% of car shoppers type the wrong URL and land on a competitor, on $50M/year of sales that's $2.5M/year lost. $1M pays for itself in 5 months. - Premium
boots.ioat $9,500 vs. freebootsapp.com: probably similar conversion. $9,500 might never pay back. - Premium
brooklynplumbing.comat $5,000 vs.brooklynplumbers.com(free): for a local plumber, neither URL gets typed directly — customers find them via Google. $5,000 wasted.
The replacement-cost number tells you a maximum reasonable price. Pay 30–60% of that as your offer; anything higher needs to be earned.
Quick-and-dirty valuation cheat sheet
For ballpark estimates without research, here's an industry rule of thumb:
| Type | Typical range |
|---|---|
4-letter random .com | $500–$5,000 |
4-letter pronounceable .com | $5,000–$50,000 |
5-letter brandable .com | $2,000–$30,000 |
1-word dictionary .com | $10,000–$500,000 |
1-word top-tier dictionary .com (verbs, common nouns) | $100,000–$10M+ |
Geo + service .com (brooklynplumbing.com) | $500–$10,000 |
Brandable .io (5–7 letter) | $1,000–$20,000 |
Brandable .ai (5–7 letter) | $2,000–$50,000 |
3-letter .com | $50,000–$1M+ |
2-letter .com | $500,000–$10M+ |
These are rough — actual sales vary wildly. Use them to sanity-check, not to set a price.
Things that REDUCE value
- History of spam or blacklisting. Always check at spamhaus.org/lookup and mxtoolbox.com/blacklists. A penalty stays attached to the domain for months/years.
- Hyphens or numbers.
my-business.comis worth 30–70% less thanmybusiness.com. Word-of-mouth loses the hyphen every time. - Trademark conflicts. If the name infringes on a Fortune 500 trademark, even adjacent to their industry, future UDRP risk is real.
- Off-trend TLDs.
.bizand.infohave lost favor; even premium-quality names there sell for much less than .com equivalents.
Things that INCREASE value
- Existing inbound links + SEO equity. A domain previously used for a real business carries link juice. Check with Ahrefs or Moz.
- Aged registration. Domains registered before 2005 sometimes carry small SEO bonuses (debated but often priced in).
- Type-in traffic. If you can prove the domain receives direct address-bar typed visits ("type-in traffic"), that's free conversion-ready audience. Hard to verify; some sellers include traffic stats.
When to use a professional appraiser
For domains in the $25,000+ range, paying a professional appraiser is a reasonable expense. Reputable ones:
- HuntingMoon — ~$249 for a written appraisal with comps
- Saw.com — broker that includes appraisal in negotiation services
- Estibot Pro — algorithmic but with more transparency than free Estibot
For domains under $5,000, just use NameBio + your own judgment.
The bottom line
A domain's "value" is whatever the next buyer will pay. Your only job is to make sure that's you, paying a price that pays back in the lifetime of your business.
If you're seriously considering a premium domain purchase, the cheapest insurance is talking to a broker before you offer. We'll tell you honestly if the price is fair, what comps support, and whether the seller has shown any flexibility in past deals.
