Trusted Notifier

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A Trusted Notifier is a designated entity for alerting registries about illegal activity, content, and/or DNS abuse associated with a domain name. Trusted Notifiers enter into written agreements with registries or registrars, which outline the roles and responsibilities for handling reports of abuse. All action is still determined by the Registrar or Registry.[1]


Trusted notifiers tend to have a higher level of confidence in reporting malicious activity than outside referrals. However, not all notifiers are “Trusted Notifiers.” What makes a notifier trusted? The organization:[2]

  • has strong, demonstrated subject matter expertise
  • shows consistent adherence to substantive, procedural due diligence
  • rigorously reports
  • is committed to a low false-positive rate and the accuracy of its notices
  • has an enumerated challenge process for registrants

Types and Examples of Programs


  • The NTIA and the U.S. Food and Drug Administration (FDA)'s trusted notifier pilot program curbs access to illegal online opioid sales by working with domain name registries.[3]

Non-Governmental Arrangements

  • TWNIC and DotAsia announced a trusted notifier fast track mechanism in March 2022.[4]


Often Operators lack the subject-matter competencies and resources to identify, evaluate, and verify the alleged abuse.

  • The MPAA is treated as a Trusted Notifier for reporting large-scale pirate websites registered in a domain extension operated by Donuts, as announced in February 2016.[5]
  • It is illegal for Operators to try to verify certain types of abusive content (such as CSAM). Internet Watch Foundation has trusted notifier arrangements with many entities. See the full list here.