Subdomain Finder

net

Find subdomains that appear in public certificate transparency logs.

POST /api/v1/subdomain-finder

API version: v1
Output schema: 1
cache: 3600s

The endpoint path is always /v1. The schema number below tracks this tool's output shape and changes independently.

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Network tool — this endpoint makes an outbound request.

Parameters

Parameter	Type	Required	Default
domain	text	yes	—

Request

curl -X POST https://sinikoding.dev/api/v1/subdomain-finder \
  -H 'content-type: application/json' \
  -H 'x-api-key: tk_live_…' \
  -d '{"domain":"…"}'

Returns

"output": { "kind": "list", "items": ["…"] }

Try it

domain

Calls a same-origin sandbox endpoint, not /api/v1. No key needed, capped at 15 requests a minute.

Request

curl -X POST https://sinikoding.dev/api/v1/subdomain-finder \
  -H 'content-type: application/json' \
  -H 'x-api-key: tk_live_…' \
  -d '{"domain":""}'

Response

Send a request to see the response.

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