Subdomain Finder: Certificate Transparency Scan

Find subdomains of any domain from Certificate Transparency (crt.sh) logs: hostnames, first and last seen, wildcard and valid-cert flags, issuer summary per domain. Export CSV, Excel, JSON. No login or API key. Example: mercadolibre.com returned 129 subdomains from 624 certificates.

Publisher description, verbatim

Last 7 dayson this actor

No changes seen in the last 7 days.

The morning one happens, followers hear first.Follow this actor

Key figures19 readings

Price / 1k$10.00per 1,000 subdomain-record

Users / 30d1↑ 1 over 19 readings

Users, all time2↑ 1 over 19 readings

Runs / 30d17↑ 16 over 18 readings

Runs / user / mo17.0runs per monthly user

Recorded changes

2026-10-14schemaInput schema changed—on record
2026-10-14contentREADME updated+5,444 characters+5,444characters
2026-10-06changeListed—on record

showing 3 of 3 in the last 30 days · followers get the next one by email

History

19 readings since 2026-10-06

Users / 30d19 readings

Users, all time19 readings

Runs / 30d18 readings

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Numbers on this page are measured only by an independent census of the Apify Store — not self-reported. Not indexed: too little has happened to this actor for us to have anything worth saying yet.