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post/domain-intel/v1/subdomains1 credit

subdomain discovery via CT-log cert SANs

Working example

Parameters

domainrequired

The domain to inspect (a bare host like github.com; a full URL or leading www. is accepted and normalized).

deepoptional

If true, query the full crt.sh CT-log history (slower, deeper) instead of the fast certspotter source first.

request preview

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

Hit Send to run this endpoint live.