Certificate Transparency Search
Search public Certificate Transparency logs for all certificates issued to a domain and its subdomains — an excellent way to spot forgotten hosts or unauthorised issuance.
About the Certificate Transparency Search
Search public Certificate Transparency logs for all certificates issued to a domain and its subdomains — an excellent way to spot forgotten hosts or unauthorised issuance.
Queries run from our global edge network, so you see what a neutral observer on the public internet sees — not what your local network or ISP resolver happens to have cached.
Frequently asked questions
What does the Certificate Transparency Search do?
Search public Certificate Transparency logs for all certificates issued to a domain and its subdomains — an excellent way to spot forgotten hosts or unauthorised issuance.
Is the Certificate Transparency Search free to use?
Yes. The Certificate Transparency Search is completely free with no account, no signup and no usage limits for normal use.
Do you log the lookups I run?
No. Queries are processed at the edge and returned straight to you. We do not retain, profile or sell your lookup history.