Bulk DNS Update
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A bulk DNS update is the simultaneous modification of [[dns|DNS]] records across multiple domains or zones through a single operation, rather than editing each domain individually. This capability is critical for large domain portfolios where a hosting migration, rebranding, or IP address change requires propagating new record values to dozens or hundreds of zones at once. Registrars and DNS providers expose bulk update functionality through the [[domain-dashboard|domain dashboard]], CSV import tools, or the [[api-domain-management|management API]]. Bulk updates carry risk—an error applied at scale can break many sites simultaneously—so change previews and rollback options are essential safeguards.
Example
After migrating your web hosting, you use a bulk DNS update to point 80 domains' A records from the old server IP to the new one in a single CSV import rather than editing each zone manually.