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WHOIS Domain Data
Get started here with general questions about WHOIS and domain data in general.
- Where can I learn more about WHOIS-related terms?
- In which formats do WHOIS Database Download come?
- How do I receive WHOIS Database Download and NRD data?
- How often is the data on WHOIS Database Download updated?
- What is the retry logic for WhoisXML API's WHOIS and WHOIS-enriched products?
- What are the different types of Top-Level Domains (TLDs)?
WHOIS vs. Historical WHOIS
Quarterly feeds
WHOIS data fields
- What data fields are included in WHOIS records?
- Are there domains where both registry and register WHOIS data exist? Which one should be processed?
- What is “Registrar IANA ID”?
- What are some of the use cases for different WHOIS record data fields?
- Do ccTLDs use the same Registrar IANA ID as gTLDs?
- Occasionally I see more than one Registrar IANA ID appear in one single domain name WHOIS record. Sometimes the IANA ID looks irregular or even missing. What should I do about it?
- Why are there only a few non-empty fields in the WHOIS records?