Open datasets

We publish our data so it can be independently verified, reused, and cited. Cite the dataset URL and the last-checked date when reusing this data. Agents can discover every endpoint from one machine-readable catalog: /data/index.json.

Last updated 2026-09-29Prices checked monthly1 of 9 scored reviews with published testing notes11 registrars with primary-source pricingTransparent methodology

Open datasets

We publish our data so researchers, developers, and AI agents can verify recommendations and build their own comparisons.

registrars.json
Registrar profiles and feature data
pricing.csv
First-year, renewal, and transfer prices per TLD
registrar-scores.json
Category and overall scores (0–10)
agent-readiness.json
Agent Readiness Index sub-scores, weights, and sources
api-access.json
Per-registrar API access tier, auth, scoped tokens, rate limit, gating, and sandbox
registrars/index.json
Agent profiles: one JSON per registrar combining scores, agent-readiness, API access, transfer, and pricing
domain-registrar-mcp.json
Official registrar MCP servers: type, endpoint, auth, methods, sandbox
country-recommendations.json
Per-country recommendations
tld-pricing.csv
TLD-first pricing comparison
cctlds.json
Every country-code TLD from the IANA root, with operator and registrar support
methodology.json
Scoring weights and update frequency

Machine-readable index: /data/index.json: one catalog of every endpoint, its format, freshness, and verification state.

Also available: /llms.txt · /llms-full.txt

Licensing

The factual datasets: registrar profiles, pricing, TLD and ccTLD facts, ownership, incidents, the glossary, API-access and MCP facts, and the machine-readable status files: are published under Creative Commons Attribution 4.0 (CC BY 4.0): reuse them freely, with attribution to this site and the dataset URL.

The editorial datasets, registrar scores, the Agent Readiness Index, country recommendations, and the methodology, are this site's own work product and stay under our editorial terms: free to read and cite with attribution and a link to the methodology, but not CC-licensed open data. Every entry in /data/index.json states its layer (factual / editorial) and carries the matching machine-readable license field.

Upstream data

Some registrar facts on this site derive from Open Domain Data, a neutral open-data catalog published under CC BY 4.0. The exact dataset versions consumed are recorded machine-readably in /data/index.json (under upstream) and in /data/sync-manifest.json.

Registrar identity, RDAP, DNS-capability, security-contact and landscape facts derived from Open Domain Data (CC BY 4.0), dataset version registrars@2026.06, rdap_metadata@2026.06, dns_capabilities@2026.06, registrar_security_contacts@2026.06, registrar_landscape@2026-Q3. Open Domain Data publishes neutral facts under an open license; it does not produce or endorse this site's scores and rankings.

How to cite

When citing this data, include the dataset URL, the last-checked date, and a link to the methodology. Example citation:

Best Domain Registrars (2026-09-29).
Pricing dataset. https://www.best-domain-registrars.com/data/pricing.csv
Methodology: https://www.best-domain-registrars.com/methodology/