Domain Name Due Diligence: A Practical Checklist

Domain due diligence means checking the facts that could change your decision before you commit to a name. Use the same questions for every candidate: how can you buy it, what will it cost, who uses a similar name, what history is visible, and does it fit your business? Keep the source and date beside each answer.

Updated September 7, 2026, by NameBearing.

Your comparison worksheet

For each candidate, copy these six entries into your notes:

• Business fit: intended customer, pronunciation or spelling concerns, and room for expansion.
• Registration: exact domain and extension, current record source and lookup date.
• Purchase terms: registrar or seller, initial price, renewal price and unresolved conditions.
• Similar names: source links, related goods or services and relevant geography.
• Past use: dated archive captures and what they actually show.
• Decision: preferred direction, unresolved questions, and what would change your mind.

Use “not retrieved” when you could not obtain evidence. Use “no close result in these searches” when the search was completed but limited. Those answers mean different things.

Check registration separately from availability

ICANN Lookup provides registration information. A parked page, DNS failure or absent lookup result is not a completed purchase check. Confirm the offer and terms with the registrar or seller, and check them again when you act. An expiration date is not a promise that a domain will become available on that date.

Search your proposed brand, not just the domain's current owner

For US research, use the USPTO trademark database and investigate similar wording, sound and related goods or services. The USPTO's broader search guidance explains why federal records are only part of the search. This worksheet does not establish a right to use the name.

A useful note is “similar wording used for appointment software; product page and trademark record attached.” “Name is safe” hides the reasoning and the remaining uncertainty.

Inspect historical use and its limits

Read dated captures in the Wayback Machine. Record what you observed, not an inferred ownership timeline. Missing captures do not establish an unused domain. A current registration record does not, by itself, list every previous owner. The background-check guide covers these limits in more detail.

Decide which question to answer next

Suppose one candidate has a seller quote outside your budget and another has a potentially confusing business neighbour. These are different problems: negotiate or revise the budget for the first; investigate the market overlap for the second. A score that averages them together may conceal the question that matters most.

Read the purchase decision framework to turn the worksheet into a choice. Keep a rejected candidate's reason so the same debate does not restart later.

Compare the findings against your actual brief

NameBearing's Domain Decision Report researches up to five candidates and explains a preferred direction, alternatives and unresolved questions. Your report is delivered to a private page. View the sample report or send your shortlist and business brief.

No walkthrough or delivery deadline is promised. This is informational research, not legal advice or a determination of trademark rights, and it does not purchase or reserve a domain. Read the refund policy before ordering.