Update: changes affecting how to run due diligence before buying a .co domain
A .co domain that looks clean in a registrar search may carry a history you cannot see without looking harder. Dispute records, contested transfers, and unresolved ownership questions do not appear on the surface – and a buyer who skips structured due diligence can acquire a tainted asset that a prior rights holder moves immediately to reclaim.
Running due diligence before buying a .co domain now requires closer attention to WIPO's dispute record for .co, chain-of-title verification against prior UDRP filings, and escrow structuring that protects against post-transfer clawback. The .co zone operates under WIPO's UDRP dispute rules, which means any complainant with a matching trademark may file a recovery proceeding after your purchase closes. A structured pre-acquisition review – covering dispute history, registrant chain, and rights-conflict exposure – is the practical safeguard.
This update covers what has changed in practice, who is most exposed, and what a buyer or seller should do before the next .co transaction closes.
What Changed?
WIPO administered a record 6,282 domain-name cases in 2025 – approximately a 1.8% rise over 2024 – and .co domains featured in a growing share of brand-owner filings. That volume increase means the probability that any given .co with commercial value has attracted a prior dispute filing, a demand letter, or a trademark screening review is materially higher than it was two years ago.
Practically, several conditions have shifted. WIPO's online case search now surfaces more granular proceeding records for .co domains, making it easier for brand owners to identify acquisition targets and file shortly after a transfer is recorded. Simultaneously, registrar-level WHOIS/RDDS data reduction – an ongoing consequence of privacy policy changes – has made independent chain-of-title reconstruction harder for buyers who rely on public records alone. The gap between what a surface check reveals and what a thorough review uncovers has widened.
The net effect: a buyer who relied on a simple registrar lookup and a trademark clearinghouse check a few years ago now needs a more deliberate process if the name has any commercial sensitivity.
Who Is Affected?
Brand owners acquiring .co domains to consolidate their namespace are directly exposed. So are domain investors purchasing .co names as portfolio assets. Both groups face the same structural risk: the UDRP applies to .co, and a transfer of ownership does not reset a trademark holder's right to file a complaint against the new registrant.
Sellers are equally affected. A seller who acquired a .co through a chain of informal transfers – without documented registrar records or escrow receipts at each step – may be unable to demonstrate clean title. That gap reduces value, exposes the buyer to residual risk, and can delay or collapse a transaction.
For brand owners on the defensive side: if competitors or domain investors are circling .co names adjacent to your brand, the same WIPO proceeding infrastructure that protects you can be used against a hasty acquisition. Knowing the prior-dispute history before you buy is the first line of protection.
For a read on whether the three UDRP elements are met on a .co name you are considering – or on one you currently hold – reach us at info@cognomenlaw.com.
What Should You Do Now?
A structured pre-acquisition review for a .co domain should address at least four areas before escrow closes.
First, dispute history. Search the WIPO case database and the Forum's published decisions for any prior UDRP filing involving the domain name or its material variants. A settled or withdrawn proceeding may indicate a rights holder who concluded a claim was viable but chose not to complete it – and who may refile after a transfer. A decided proceeding, even one the current registrant won, maps the rights-conflict landscape precisely.
Second, chain of title. With WHOIS/RDDS data increasingly gated behind privacy proxies, reconstruction of the registrant chain now requires active work: historical WHOIS records from data aggregators, registrar-level verification requests, and confirmation of each documented transfer. An unexplained gap in the chain – a period where the registered holder cannot be traced – is a material risk marker.
Third, trademark conflict screening. Run the name against live trademark registrations in the markets where the buyer will use it. The confusing similarity element of Paragraph 4(a) of the UDRP is assessed objectively; a panel will compare the domain and the mark without regard to the buyer's intent. A name that clears a visual check may still be confusingly similar to a registered mark under panel consensus standards.
Fourth, escrow and representations. Structure the transaction through a legitimate escrow service. Require the seller to represent that no UDRP or ccTLD dispute proceeding is pending or threatened, that the registration is not subject to any lock or hold, and that the seller has authority to transfer. These representations do not guarantee a dispute-free future, but they define recourse if one arises shortly after closing.
Where a .co name is particularly valuable or the rights-conflict profile is unclear, a pre-acquisition legal opinion – reviewing the four areas above and identifying residual risk – is the most efficient use of due-diligence budget. We regularly advise buyers and sellers on exactly this scope of review before a transaction closes.
To assess a .co acquisition and confirm the chain-of-title and dispute record, email info@cognomenlaw.com.
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Frequently asked questions
What changed?
WIPO's record 2025 caseload and reduced public WHOIS/RDDS data availability have together widened the gap between a surface registrar check and a reliable due-diligence review for .co domains. The practical result is that buyers who previously relied on simple lookups now face higher residual risk of acquiring a domain with a traceable prior dispute or unresolved trademark conflict.
Who is affected?
Any party buying or selling a .co domain with commercial value: brand owners consolidating their namespace, domain investors building a portfolio, and sellers whose acquisition history lacks documented chain-of-title records. Because .co operates under the UDRP, a transfer of ownership does not extinguish an existing trademark holder's right to file a recovery complaint against the new registrant.
What should you do now?
Before escrow closes on any .co domain, run a structured pre-acquisition review covering prior UDRP dispute history, chain-of-title reconstruction, trademark conflict screening against Paragraph 4(a) standards, and escrow structuring with seller representations. Where the rights-conflict profile is unclear, a pre-acquisition legal opinion from counsel experienced in domain transactions is the most direct way to quantify residual risk.
Author: Cordelia Roe — UDRP complainant practice & gTLD recovery; domain transactions and brand protection. Meet the team.
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This publication is general information and does not constitute legal advice. For advice on your situation, contact info@cognomenlaw.com.