Reverse Domain Hijacking
Abusing the UDRP in bad faith to try to seize a domain from its legitimate owner.
- glossary
Reverse domain hijacking (RDNH) is a declaration by a UDRP panel that the complainant brought its case in bad faith, in an attempt to deprive a legitimate domain owner of their registration rather than to remedy genuine trademark abuse. A panel will make an RDNH finding when the complainant knew or should have known it could not satisfy one of the three required UDRP elements — for example, when the registrant demonstrably registered the domain before the trademark existed, or where the complainant's mark is descriptive and the domain has an obvious generic meaning. RDNH is a reputational sanction only; the UDRP provides no monetary penalties against complainants, though a pattern of abusive filings can inform future panels. Well-resourced brands have been found to engage in RDNH when they covet a short, valuable domain and file a weak case hoping the registrant will default. Because domain hijacking is a separate concept involving unauthorized account takeover, the "reverse" in RDNH specifically signals that it is the complainant, not the registrant, acting improperly. Domain owners whose tokenized assets are targeted by a UDRP complaint should seek specialist counsel promptly — the default rate in UDRP proceedings is high, and a missed deadline results in transfer.
Related keywords
- reverse domain hijacking
- RDNH
- UDRP abuse
- domain dispute
- bad faith complainant
Contributors
Namefi is a collective of engineers, designers, and operators who obsess over building tools that make managing your onchain domain names effortless.
Victor Zhou is a technology founder and standards editor focused on digital identity and trust. He founded Namefi, edits Ethereum Improvement Proposals, and previously led smart-contract architecture work at Google Labs.
His work sits at the intersection of naming, ownership, and the systems people use to establish identity online. That perspective makes him especially interested in the way names move between personal meaning, public recognition, and digital infrastructure.
For Namefi, Victor edits and writes about domains as durable digital identity: how names become ownable onchain assets, how tokenization changes custody and trust, and what naming can learn from the systems people use to establish identity online.