IANA Root Zone Database and RDAP Bootstrap Registry

Put it to work

Potential use cases

A starting use for this source

Power domain and DNS products with authoritative TLD discovery, root-zone validation and routing of domain-registration lookups to the correct RDAP service. Domain/DNS SaaS founders, registrars, certificate tools and infrastructure developers needing standards-based authoritative registries.

Find a technical research angle

Turn an observable infrastructure or performance pattern into a research question for your audience. Explain what the measurement captures before drawing conclusions about user experience or demand.

What it covers

Geography and granularity

Geography: Use the geography stated by the source; coverage can vary by dataset and release.

Granularity: Power domain and DNS products with authoritative TLD discovery, root-zone validation and routing of domain-registration lookups to the correct RDAP service.

Source type: Authoritative DNS root-zone, TLD and RDAP registry data

Access and cost

Public download

Public authoritative web data and downloadable root-zone/RDAP JSON registry files; the root-zone page states that root-zone DNS data is available for download, and the RDAP registry is published as JSON.

Cost: Current price was not established in this review; check the provider's access terms.

Update cadence: Release cadence was not normalized in this review; check the source's dates, update notes, and API limits before comparing periods.

Before you use it

Limits that matter

IANA's data identifies TLD delegation and RDAP service locations, not guaranteed availability or completeness of each registry/registrar's response; downstream RDAP servers remain operational dependencies.; The root zone and RDAP bootstrap registry are global Internet registries, but they identify delegated TLDs and authoritative RDAP services; they do not provide complete end-user DNS resolution or registrar customer data.; The JSON registry is versioned/published and can change as delegations and RDAP services change; consumers should refresh rather than assume a permanent mapping.

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