Case study: defend a .jp domain against a UDRP complaint

Case study: defend a .jp domain against a UDRP complaint. UDRP and ccTLD domain recovery and defense across .jp. Email the firm to assess your case.

A Japanese domain registrant received a UDRP complaint filed through WIPO alleging that a .jp domain matched a foreign brand owner's trademark. The complainant had built a strong filing. The registrant had held the name for several years. Both facts mattered – but only one governed the outcome.

Defending a .jp domain against a UDRP complaint requires showing that the registrant has rights or legitimate interests under Paragraph 4(c) of the Policy and that the registration was not made in bad faith. In this matter, the registrant's prior commercial use of the name – documented before any notice of the dispute – supplied the decisive safe harbor. The complaint was denied. A finding of reverse domain name hijacking was also recorded.

Below we set out the situation, the strategy, and what the outcome signals for registrants in comparable positions.

The situation: a .jp domain, a foreign trademark, and a well-resourced complainant

The registrant – a small Japanese business – had operated under a short alphanumeric name for several years before the complaint arrived. The .jp domain matched that operating name. It had been used on a live commercial website offering services to Japanese consumers.

The complainant was a multinational with a registered trademark in its home jurisdiction. The mark predated the domain registration by a moderate margin. The complaint relied on that chronology to assert that registration must have been in bad faith. It also argued that the registrant had no plausible independent claim to the name.

On the surface, the filing looked formidable. Registered mark. Identical domain. The registrant had no trademark registration of its own. In our practice we see this pattern often: a well-financed complainant mistakes the absence of a registered mark for the absence of any right.

The legal question: does the UDRP apply to a .jp domain?

The .jp zone operates its own dispute-resolution procedure – the JP-DRP – administered under rules distinct from the UDRP, though closely modeled on it. Whether a UDRP complaint filed through WIPO can reach a .jp domain depends entirely on the registry's current accreditation and its contractual relationship with ICANN-approved providers.

For the purposes of this matter, the filing proceeded under a UDRP-based procedure applicable to the domain. The three-element test of Paragraph 4(a) governed: confusing similarity to a mark, absence of rights or legitimate interests in the registrant, and registration and use in bad faith – all three required.

That third element is cumulative. Panels have consistently held that a complainant must establish both registration in bad faith and use in bad faith. Proving one without the other is insufficient. Here, the complainant's strongest argument was on use; the registration-in-bad-faith limb was always more exposed.

If you have received a UDRP complaint relating to a .jp or other ccTLD domain, the response deadline is 20 days from commencement. Missing it is a default that strips the panel of the registrant's evidence. For an assessment of your domain dispute, contact info@cognomenlaw.com.

The strategy: build the legitimate-interest record before the panel forms its view

The Paragraph 4(c) safe harbors are the respondent's primary tool. The most powerful is the first: a bona fide offering of goods or services using the domain name before any notice of the dispute. That safe harbor does not require a trademark registration. It requires evidence.

We assembled the following record for the registrant.

• Business registration documents predating the complaint by multiple years, showing the registrant had traded under the name commercially.
• Website archives and server logs confirming continuous operation of the .jp domain in connection with those services.
• Commercial correspondence – invoices, client emails, supplier agreements – referencing the domain name as the registrant's trading identity.
• Japanese-language marketing materials distributed under the name before any notice of the foreign complainant's mark.

Collectively, this evidence answered the second and third UDRP elements directly. If the registrant was trading under the name in good faith before learning of the complaint, the registration-in-bad-faith limb collapses. There is no credible basis on which the panel could infer that the registrant had targeted the complainant's mark.

The second strategic layer was the RDNH argument. We documented that the complainant had conducted no meaningful pre-filing investigation. A basic search of Japanese public business records would have disclosed the registrant's commercial existence. Filing without that inquiry – and asserting bad faith against a demonstrably established business – falls within the recognized definition of bringing a complaint in bad faith to deprive a legitimate holder of a domain.

What was the outcome?

The panel denied the complaint. It accepted that the registrant had established a bona fide commercial use of the domain name prior to any notice of the dispute. The bad-faith elements were not made out on either registration or use.

The panel also entered an RDNH finding. It noted that the complainant had failed to investigate the registrant's established commercial presence before filing and that the complaint, as presented, could not have succeeded against the evidence reasonably available to a diligent complainant. RDNH carries no monetary penalty under the UDRP. The reputational and tactical consequences for the complainant are real nonetheless.

In a recent matter of this type – a .jp domain dispute, winter 2025 – we secured both denial and an RDNH finding for a registrant whose documented business history stretched back approximately five years before the complaint was filed. The complainant had been represented by experienced IP counsel. The evidence record, not the sophistication of opposing counsel, determined the result.

Is an RDNH finding always realistic? No. Panels apply a high threshold. The complainant must have known, or should clearly have known, that the claim could not succeed. Where the complainant had a colorable but ultimately insufficient case, RDNH will generally not follow. Where, as here, basic due diligence would have revealed a legitimate registrant, the finding is warranted.

If a prior UDRP response produced a transfer order, a focused review of the decision can identify whether the element that was missed was a matter of evidence, argument, or timing. To discuss a filed or decided matter, email info@cognomenlaw.com.

Related at COGNOMEN

• UDRP respondent defense and RDNH findings across all gTLD zones
• How to respond within the UDRP deadline when the domain is a .cn
• Court action for cybersquatting: when arbitration is not enough