SSL & Security
Certificate Transparency Checker
Search CT Logs
Enter a domain to search Certificate Transparency logs for all SSL certificates ever issued.
Tool Features
Search public SSL Certificate Transparency logs
CT Log Search
Query crt.sh to find all certificates ever issued for a domain
Subdomain Discovery
Find subdomains disclosed in SSL certificate SAN fields
Expiry Status
See active, expiring, and expired certificates at a glance
CSV Export
Download the full certificate list as a CSV file