Certificates found
The domain publishes certificates or keys in DNS, each with its type.
Free CERT record lookup
Find the CERT records a domain publishes, with the type, key tag and algorithm of each certificate.
- Free, with no signup
- Runs in your browser
What your result means
No certificates
The domain publishes no CERT records. Most domains do not.
Questions about the CERT lookup
What is a CERT record?
A record that stores a certificate or a key, such as an X.509 certificate or an OpenPGP key, in DNS (RFC 4398).
Is a CERT record the same as an SSL certificate?
No. A website sends its TLS certificate over the connection. CERT records are used by a few systems that look up keys in DNS.
What does the type mean?
PKIX is an X.509 certificate and PGP is an OpenPGP key. The other types are variants of these or links to them.
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