Search Certificate Transparency Logs
Search the TLS certificate transparency logs to find public certificates issued.
This can reveal new subdomains, certificate renewals, or suspicious activity.
Great for security monitoring, domain research, and uncovering hidden infrastructure.
Searching these logs is the basis of certificate discovery:
finding every certificate issued for your domains, even the ones you forgot about.
- Enter the domain to search. All child domains will be included in the results.
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Wildcards
*will only return wildcard certificates. -
Up to 100 certificates will be returned. Looking for more?
Get unlimited access with a Business-level CertKit account.