421421 Misdirected Request
The request was directed at a server that is not able to produce a response for the combination of scheme and authority in the request URI.
26 foutcodes met tag "tls"
421The request was directed at a server that is not able to produce a response for the combination of scheme and authority in the request URI.
525Cloudflare could not complete an SSL/TLS handshake with the origin server.
526Cloudflare could not validate the SSL certificate on the origin server.
ERR_TLS_CERT_ALTNAME_INVALIDThe hostname does not match any of the Subject Alternative Names (SANs) in the server's TLS certificate.
Error: net/http: TLS handshake timeoutThe TLS handshake with the Docker registry timed out.
ssl.SSLCertVerificationError: certificate verify failedSSL certificate verification failed during a secure connection.
CERT_E_UNTRUSTEDROOT (0x800B0109)The certificate chain terminates in an untrusted root certificate.
495 SSL Certificate ErrorThe client SSL certificate presented an error.
496 SSL Certificate RequiredA client certificate is required but was not provided.
497 HTTP to HTTPSA plain HTTP request was sent to the HTTPS port.
SSL_do_handshake() failedThe SSL/TLS handshake with a client or upstream server failed.
SSL: error:0B080074:x509 certificate routinesAn SSL certificate validation error occurred.
TLS certificate has expiredThe TLS certificate presented by the server has expired.
ERR_CERT_AUTHORITY_INVALIDThe SSL/TLS certificate is issued by a certificate authority that is not trusted.
ERR_CERT_DATE_INVALIDThe SSL/TLS certificate has expired or is not yet valid.
SSL_ERROR_HANDSHAKE_FAILUREThe SSL/TLS handshake between client and server failed.
certificate_unknownThe server's certificate could not be verified for an unknown reason.
ERR_SSL_PROTOCOL_ERRORAn error occurred during the SSL/TLS protocol exchange.
ERR_CERT_COMMON_NAME_INVALIDThe SSL certificate's subject name does not match the requested hostname.
ERR_CERT_REVOKEDThe SSL certificate has been revoked by the certificate authority.
ERR_SSL_VERSION_OR_CIPHER_MISMATCHThe client and server cannot agree on a TLS version or cipher suite.
CertificateExceptionA certificate-related error occurred during SSL/TLS operations.
SSLHandshakeExceptionThe SSL/TLS handshake failed between client and server.
ERR_CERTIFICATE_TRANSPARENCY_REQUIREDThe certificate does not meet Certificate Transparency requirements.
ERR_SSL_CLIENT_AUTH_CERT_NEEDEDThe server requires a client SSL certificate for authentication.
ERR_SSL_OBSOLETE_VERSIONThe server only supports TLS versions that are considered obsolete and insecure.