Subdomain Finder

net

Find subdomains that appear in public certificate transparency logs.

Through the API

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

Need subdomain finder from your own code? Create a free account to get an API key. This page stays free without one.

Create account

This tool makes an outbound network call. It stays free on this page.