CertKit Certificate Transparency Log Search - Search the Certificate Transparency Log

Certificate Transparency Log Search is a free online tool that lets you search public CT logs to discover all SSL/TLS certificates issued for any domain. Enter a domain to instantly find subdomains, track certificate renewals, and detect suspicious or unauthorized certificate issuance. Essential for security researchers doing reconnaissance, sysadmins monitoring their infrastructure, and anyone who needs to uncover hidden subdomains or verify certificate history — no OpenSSL commands required.