Add a trusted domain

Certain detections are generated when a device makes a connection to an external domain. If you know that a domain is legitimate, add it to the Trusted Domains list, and future detections that target malicious domain activity are suppressed for that domain.

For detections that have an associated domain, you can also add a trusted domain directly from a detection card.

Note:If your ExtraHop system includes a console, and that system is configured to manage tuning parameters, these trusted domains will apply to all connected sensors.


  1. Log in to the ExtraHop system through https://<extrahop-hostname-or-IP-address>.
  2. Click the System Settings icon and then click Network Localities.
  3. Under Trusted Domains, click Add Domain.
  4. Type a trusted domain name.
    The domain name must be an exact match to the domain you want to suppress. Wildcards and Regex are not supported. To add more than one trusted domain name, click Add Domain. Type a single domain name per field.
  5. Click Save.
Published 2022-12-07