Ping TLS. Move on.
Free single-host TLS check. Get the certificate, supported TLS versions, weak cipher suites, PFS, OCSP stapling, HSTS, and security headers for any hostname. No account, no signup.
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One host is a ping. Your domain is the board.
SSLPing covers one hostname. SSLBoard finds every subdomain on a domain via certificate transparency logs, then scores each one on TLS config, cipher strength, DNSSEC, CAA records, and security headers.