On 18 August 2026, ICANN published for public comment the Initial Report of its DNS Abuse Mitigation Policy Development Process (PDP 1). Among its proposals are Associated Domain Checks: when a registrar acts on an abuse report, it should also examine the other domain names held by the same customer. In its comments of 25 September 2026, the WIPO Arbitration and Mediation Center supports the approach but points out its main limitation: the checks stop at the edge of a single registrar's portfolio. Bad actors know this and spread their registrations across several registrars, which hampers consolidated UDRP proceedings. WIPO suggests exploring cross-registrar mechanisms without saying which data could link the names. The article argues that payment data, pseudonymised, could serve as that common denominator, while acknowledging its limits (prepaid cards, fraud, multiple payment methods): an indicator rather than proof. It marks a shift from a one-domain, one-investigation logic to a network approach.