Look up every SSL certificate ever issued for your domain in public Certificate Transparency logs and detect unauthorized issuance.
Certificate Transparency (CT) is a public framework that requires all trusted CAs to log every issued certificate to public, append-only ledgers. This makes it impossible to issue secret certificates.
Data is sourced from crt.sh, operated by Sectigo, which aggregates CT logs from all major log operators. Results are cached for 10 minutes.
Want a complete security check of your site? Run a full site scan →