Short answerBefore buying a domain, check trademark databases for conflicts, look at its past use on the Wayback Machine, search for spam or blacklist history, confirm the renewal price, find comparable sales, make sure it is easy to spell, and confirm it can actually be transferred to you.
Updated 2026-10-14 · How to Trade Domains guide
Trademark search
Search the trademark office for your market (for the US, the USPTO trademark search) and do a plain web search. If a known brand uses the word in the same field, walk away.Past use
Look the domain up on the Wayback Machine. Adult, gambling, pirated or spam content in its past can follow the name.Spam and blacklists
Check email and web blacklists. A blacklisted name can be hard to use for email or ads.Renewal price
Some extensions and "premium" names renew at high prices every year. Know the yearly cost before you buy.Comparable sales
Find similar reported sales. No comparables usually means low value.Spelling and sound
Say it out loud. If people would misspell it, buyers will notice.Transferability
Confirm the seller can transfer it now (no recent-registration lock) and that payment goes through escrow or a marketplace.
What is a UDRP and why does it matter?
The Uniform Domain-Name Dispute-Resolution Policy lets trademark owners take a domain from someone who registered it in bad faith. Buying names that contain other companies' brands is the fastest way to lose money in domain trading.
Does a domain's history affect its value?
Yes. Clean history and genuine backlinks can add value; a past full of spam can reduce it, especially for buyers who want to build a website on it.
Find your first flip
Domain Dumpster Dive, run by the same team as this guide, lists below-market names and bundles, has a free valuation tool, and lets you list your own names for free.
Browse below-market namesFree valuation toolFrequently asked questions
How do I check if a domain is trademarked?
Search your country's trademark office database (for the US, the USPTO) and search the web for businesses using the name in the same field.
How can I see what a domain was used for before?
Look it up on the Internet Archive's Wayback Machine, which shows saved snapshots of past websites.
What is a premium domain renewal?
Some registries charge a higher yearly renewal for certain names. Always check the renewal price, not just the purchase price.