Domain Value Checker

How we score a domain

Every domain appraisal tool you have ever seen produces a number with a dollar sign and no explanation. That number is meaningless without two things: which signals went into it, and how heavily each one was weighted. This tool shows both, and refuses to attach a dollar sign because no algorithm can tell you what an actual buyer will actually pay for an actual name in an actual deal next month.

What we can score honestly is a 0–100 signal strength built from six measurable factors, with weights that sum to 100:

• TLD quality (25%) — .com is the gold standard at 100; .ai, .io, .net, .org follow; new gTLDs vary widely. Uncommon ccTLDs and generic new gTLDs default to a low baseline.
• Length (20%) — four characters or fewer is rare and valuable; the score declines as you cross 12, 16, and 20 characters.
• Readability (15%) — pronounceable English-style words score higher than hyphens, digits, repeated letters, and consonant clusters.
• Domain age (15%) — older domains have accumulated trust signals and resist the appearance of a fresh squat.
• Traffic signal (15%) — when an estimated monthly traffic number is available, it dominates the lower tiers — even mediocre names with real traffic outperform brilliant names with zero visits.
• Market signal (10%) — registry premium pricing, aftermarket "for sale" flags, and elevated first-year register prices each push this factor up.

When a signal is missing — for example, a brand-new domain has no traffic data, or a redacted ccTLD has no registration date — we re-weight the remaining factors so the missing data does not silently drag your score down. The confidence label (low / medium / high) reflects how many signals were available at scoring time.

What the tier label actually means

• Traffic-backed — there is a measurable audience already hitting this domain. The value here is not theoretical; it is whatever a buyer would pay to inherit those visitors.
• Premium candidate — strong fundamentals (short, .com or .ai/.io, dictionary word) or premium pricing flagged by the registry. These are negotiation candidates.
• Brandable — a usable startup name. Length, TLD, and readability are decent. The right buyer might pay four or five figures; the average buyer will pay registration cost.
• Low confidence — limited signals or weak fundamentals. Either the data is sparse or the name has structural problems (hyphens, very long, weak TLD).

Why we don't quote a dollar amount

Three reasons:

1. The data we have is generic. A name's market value depends on industry demand. The same name, vault.app, is a six-figure asset in fintech and a free trial in a hobbyist community. We don't know your industry.
2. Comparable sales are sparse. Public sale histories like NameBio cover maybe 1% of all domain transactions. Most sales are private. Algorithms trained on the public 1% systematically overestimate, because the public 1% is the visible-to-PR end of the distribution.
3. Quoting a number anchors the buyer and seller. If we tell you a domain is "worth $45,000", you will refuse a $20,000 offer that was actually generous. The honest answer is "this name has strong fundamentals; here are comps; negotiate".

For an actual price quote, use a paid appraisal service like Estibot or GoDaddy Appraisal, or — better — pull comparable sales from NameBio and judge for yourself.

How to use this score in practice

Three concrete workflows where this tool earns its place in your stack:

• Selecting a startup name. Generate a shortlist with the Domain Name Generator, then score each candidate. Names below 55 are noise; names above 70 are real options. Buy the one with the strongest readability factor — your customers will thank you.
• Sanity-checking a buy decision. Someone offered you a domain for $4,000. Is it worth that? Plug it in. If the score is 80+ with traffic-backed tier, probably yes; if the score is 45 with no traffic, almost certainly no.
• Pricing your own portfolio. If you own dozens of domains, the score lets you rank them objectively. Sell from the bottom up — names below 40 are probably costing you more in renewals than they will ever return.

What this tool does not check

We deliberately stay away from signals that are unreliable, unethical, or impossible to compute correctly:

• Trademark conflicts. A domain matching an active mark is worth zero to you and could be reclaimed via UDRP. Search USPTO TESS or your jurisdiction's registry separately.
• SEO authority. Backlink counts, DA, and DR are paid metrics from Ahrefs / Moz / Semrush. We do not have those, and the open APIs that claim to are usually wildly wrong.
• Industry-specific demand. Whether nimbus is hot in cloud or boring in weather is a human judgment.
• Historical sale price. If a domain has a public sale on NameBio, we don't fetch it. That number anchors negotiations and is something to look up deliberately, not have surfaced as a side effect.

FAQ-style buyer's checklist

Before you accept any appraisal — ours, Estibot's, anyone's — answer these:

• Have I looked up at least three NameBio comps for similar length and TLD?
• Have I checked the trademark database in the country I will sell in?
• Have I verified the domain history with a WHOIS check?
• Is the seller verifiable (not a freshly created broker account)?
• Does the renewal cost over five years still make this profitable?

A score is one input. The negotiation is yours.