openssl s_client -showcerts
openssl, openssl s_client
- TLS, mTLS: OpenSSL, LibreSSL, BoringSSL, WolfSSL, X.509,
.pem
, SNI, CT, OCSP, Mbed TLS, ALPN, your connection is not private
, SSL Certificate Checker, Wildcard certificate, JA3 fingerprint, sslcan, TLS inspection