docs / domain-intel

Domain Intelligence

Domain, DNS and WHOIS lookups.

base /domain-intel/v19 endpoints

post/domain-intel/v1/whois1 credit

registration/WHOIS via RDAP (registrar, dates, status, NS, DNSSEC)

Parameter		Allowed / range	Description
domain	required	—	The domain to inspect (a bare host like github.com; a full URL or leading www. is accepted and normalized).
raw = false	optional	—	If true, also attach the raw upstream RDAP JSON under whois.raw_rdap.
include_pii = false	optional	—	If true, return the full WHOIS/RDAP registrant contact. Default false → personal data is dropped (GDPR), organization kept.

Try in playground →

post/domain-intel/v1/dns1 credit

DNS records (A/AAAA/MX/TXT/NS/CNAME/SOA/CAA)

Parameter		Allowed / range	Description
domain	required	—	The domain to inspect (a bare host like github.com; a full URL or leading www. is accepted and normalized).
types	optional	A · AAAA · MX · TXT · NS · CNAME · SOA · CAA	Which DNS record types to query (comma-separated string or array). Defaults to A,AAAA,MX,TXT,NS,CNAME,SOA,CAA. Other RR types are accepted and passed through to the resolver.

Try in playground →

post/domain-intel/v1/ssl_certs1 credit

SSL/TLS certificates from Certificate Transparency (CT) logs

Parameter		Allowed / range	Description
domain	required	—	The domain to inspect (a bare host like github.com; a full URL or leading www. is accepted and normalized).
limit = 50	optional	1–	Max certificates to return (newest first). Default 50.
deep = false	optional	—	If true, query the full crt.sh CT-log history (slower, deeper) instead of the fast certspotter source first.

Try in playground →

post/domain-intel/v1/subdomains1 credit

subdomain discovery via CT-log cert SANs

Parameter		Allowed / range	Description
domain	required	—	The domain to inspect (a bare host like github.com; a full URL or leading www. is accepted and normalized).
deep = false	optional	—	If true, query the full crt.sh CT-log history (slower, deeper) instead of the fast certspotter source first.

Try in playground →

post/domain-intel/v1/availability1 credit

domain registration availability via RDAP

Parameter		Allowed / range	Description
domain	required	—	The domain to inspect (a bare host like github.com; a full URL or leading www. is accepted and normalized).

Try in playground →

post/domain-intel/v1/tld_listfree

IANA TLD list (optionally filtered)

Parameter		Allowed / range	Description
search	optional	—	Case-insensitive substring filter over the IANA TLD list (e.g. 'shop' → shop, eshop, bargains…).
limit	optional	1–	Max TLDs to return (0/unset = all ~1500).

Try in playground →

post/domain-intel/v1/tld_detailfree

TLD metadata + RDAP server (IANA bootstrap)

Parameter		Allowed / range	Description
tld	required	—	A top-level domain, with or without a leading dot (e.g. com, io, co.uk). Returns its type + IANA RDAP server(s).

Try in playground →

post/domain-intel/v1/tech_detect1 credit

tech-stack fingerprint via response headers/HTML

Parameter		Allowed / range	Description
domain	required	—	The domain to inspect (a bare host like github.com; a full URL or leading www. is accepted and normalized).

Try in playground →

post/domain-intel/v1/full_report3 credits

merged whois+dns+ssl_certs+subdomains (one call)

Parameter		Allowed / range	Description
domain	required	—	The domain to inspect (a bare host like github.com; a full URL or leading www. is accepted and normalized).
include_tech = false	optional	—	If true, also run the tech-stack fingerprint as part of full_report.
include_pii = false	optional	—	If true, return the full WHOIS/RDAP registrant contact. Default false → personal data is dropped (GDPR), organization kept.
deep = false	optional	—	If true, query the full crt.sh CT-log history (slower, deeper) instead of the fast certspotter source first.

Try in playground →

Example request · whois

curl -X POST https://api.reefapi.com/domain-intel/v1/whois \
  -H "x-api-key: $REEF_KEY" \
  -H "content-type: application/json" \
  -d '{"domain":"github.com"}'

Response shape

{
  "ok": true,
  "data": { /* the result */ },
  "meta": {
    "latency_ms": 240,
    "record_count": 12,
    "completeness_pct": 100
  },
  "error": null
}