crtlookup is a command-line tool for querying crt.sh – a public Certificate Transparency log viewer – to inspect SSL/TLS certificates issued for a given domain.
Easily find subdomains, expiration dates, and certificate issuers directly from your terminal.
- Language: Python 3
- CLI:
argparse - HTTP:
requests - Packaging:
setuptools - Optional distribution via: Homebrew Tap
crtlookup example.comcrtlookup example.com --uniquecrtlookup example.com --expiredcrtlookup example.com --jsonbrew tap gustavfroding/crtlookup
brew install crtlookupMIT – do whatever you want, just don't sue me.