SSL Report: www.hfct.or.kr (118.40.12.165)
Assessed on:  Sat, 14 Jun 2025 03:47:24 UTC | Clear cache

Due to a recently discovered bug in Apple's code, your browser is exposed to MITM attacks. Click here for more information.

Summary
Overall Rating
B
0
20
40
60
80
100
Certificate
 
Protocol Support
 
Key Exchange
 
Cipher Strength
 

Visit our documentation page for more information, configuration guides, and books. Known issues are documented here.
This server's certificate chain is incomplete. Grade capped to B.
HTTP request to this server failed, see below for details.
This server supports TLS 1.0 and TLS 1.1. Grade capped to B. MORE INFO »
This server does not support TLS 1.3.  MORE INFO »
Certificate #1: EC 256 bits (SHA384withECDSA)
Server Key and Certificate #1
Subject www.hfct.or.kr
Fingerprint SHA256: e7d1e962ffa1855268ecb4d4147d33c25ba82e00ca8ec5462a62fcd7a3de9cf0
Pin SHA256: 9Dlld+FRARns70r1QLVpU/X0OmOFuHbL6R3sE0Gyeyo=
Common names www.hfct.or.kr
Alternative names www.hfct.or.kr
Serial Number 319f403e9007b60b5671c6e182e871ca
Valid from Mon, 14 Apr 2025 00:00:00 UTC
Valid until Sun, 13 Jul 2025 23:59:59 UTC (expires in 29 days, 5 hours)
Key EC 256 bits
Weak key (Debian) No
Issuer ZeroSSL ECC Domain Secure Site CA
AIA: http://zerossl.crt.sectigo.com/ZeroSSLECCDomainSecureSiteCA.crt
Signature algorithm SHA384withECDSA
Extended Validation No
Certificate Transparency Yes (certificate)
OCSP Must Staple No
Revocation information OCSP
OCSP: http://zerossl.ocsp.sectigo.com
Revocation status Good (not revoked)
DNS CAA No (more info)
Trusted Yes
Mozilla  Apple  Android  Java  Windows 


Additional Certificates (if supplied)
Certificates provided 1 (1025 bytes)
Chain issues Incomplete


Certification Paths
Path #1: Trusted
1 Sent by server www.hfct.or.kr
Fingerprint SHA256: e7d1e962ffa1855268ecb4d4147d33c25ba82e00ca8ec5462a62fcd7a3de9cf0
Pin SHA256: 9Dlld+FRARns70r1QLVpU/X0OmOFuHbL6R3sE0Gyeyo=

EC 256 bits / SHA384withECDSA
2 Extra download ZeroSSL ECC Domain Secure Site CA
Fingerprint SHA256: 5dd661d3cb33b5005cbed045a223ddc4445aaa41d1acb5df700884cad9ba4195
Pin SHA256: 3fLLVjRIWnCqDqIETU2OcnMP7EzmN/Z3Q/jQ8cIaAoc=

EC 384 bits / SHA384withECDSA
3 In trust store USERTrust ECC Certification Authority   Self-signed
Fingerprint SHA256: 4ff460d54b9c86dabfbcfc5712e0400d2bed3fbc4d4fbdaa86e06adcd2a9ad7a
Pin SHA256: ICGRfpgmOUXIWcQ/HXPLQTkFPEFPoDyjvH7ohhQpjzs=

EC 384 bits / SHA384withECDSA
Path #2: Trusted
1 Sent by server www.hfct.or.kr
Fingerprint SHA256: e7d1e962ffa1855268ecb4d4147d33c25ba82e00ca8ec5462a62fcd7a3de9cf0
Pin SHA256: 9Dlld+FRARns70r1QLVpU/X0OmOFuHbL6R3sE0Gyeyo=

EC 256 bits / SHA384withECDSA
2 Extra download ZeroSSL ECC Domain Secure Site CA
Fingerprint SHA256: 5dd661d3cb33b5005cbed045a223ddc4445aaa41d1acb5df700884cad9ba4195
Pin SHA256: 3fLLVjRIWnCqDqIETU2OcnMP7EzmN/Z3Q/jQ8cIaAoc=

EC 384 bits / SHA384withECDSA
3 Extra download USERTrust ECC Certification Authority
Fingerprint SHA256: a6cf64dbb4c8d5fd19ce48896068db03b533a8d1336c6256a87d00cbb3def3ea
Pin SHA256: ICGRfpgmOUXIWcQ/HXPLQTkFPEFPoDyjvH7ohhQpjzs=

EC 384 bits / SHA384withRSA
4 In trust store AAA Certificate Services   Self-signed
Fingerprint SHA256: d7a7a0fb5d7e2731d771e9484ebcdef71d5f0c3e0a2948782bc83ee0ea699ef4
Pin SHA256: vRU+17BDT2iGsXvOi76E7TQMcTLXAqj0+jGPdW7L1vM=

RSA 2048 bits (e 65537) / SHA1withRSA
Weak or insecure signature, but no impact on root certificate
Path #1: Trusted
1 Sent by server www.hfct.or.kr
Fingerprint SHA256: e7d1e962ffa1855268ecb4d4147d33c25ba82e00ca8ec5462a62fcd7a3de9cf0
Pin SHA256: 9Dlld+FRARns70r1QLVpU/X0OmOFuHbL6R3sE0Gyeyo=

EC 256 bits / SHA384withECDSA
2 Extra download ZeroSSL ECC Domain Secure Site CA
Fingerprint SHA256: 5dd661d3cb33b5005cbed045a223ddc4445aaa41d1acb5df700884cad9ba4195
Pin SHA256: 3fLLVjRIWnCqDqIETU2OcnMP7EzmN/Z3Q/jQ8cIaAoc=

EC 384 bits / SHA384withECDSA
3 In trust store USERTrust ECC Certification Authority   Self-signed
Fingerprint SHA256: 4ff460d54b9c86dabfbcfc5712e0400d2bed3fbc4d4fbdaa86e06adcd2a9ad7a
Pin SHA256: ICGRfpgmOUXIWcQ/HXPLQTkFPEFPoDyjvH7ohhQpjzs=

EC 384 bits / SHA384withECDSA
Path #2: Trusted
1 Sent by server www.hfct.or.kr
Fingerprint SHA256: e7d1e962ffa1855268ecb4d4147d33c25ba82e00ca8ec5462a62fcd7a3de9cf0
Pin SHA256: 9Dlld+FRARns70r1QLVpU/X0OmOFuHbL6R3sE0Gyeyo=

EC 256 bits / SHA384withECDSA
2 Extra download ZeroSSL ECC Domain Secure Site CA
Fingerprint SHA256: 5dd661d3cb33b5005cbed045a223ddc4445aaa41d1acb5df700884cad9ba4195
Pin SHA256: 3fLLVjRIWnCqDqIETU2OcnMP7EzmN/Z3Q/jQ8cIaAoc=

EC 384 bits / SHA384withECDSA
3 Extra download USERTrust ECC Certification Authority
Fingerprint SHA256: a6cf64dbb4c8d5fd19ce48896068db03b533a8d1336c6256a87d00cbb3def3ea
Pin SHA256: ICGRfpgmOUXIWcQ/HXPLQTkFPEFPoDyjvH7ohhQpjzs=

EC 384 bits / SHA384withRSA
4 In trust store AAA Certificate Services   Self-signed
Fingerprint SHA256: d7a7a0fb5d7e2731d771e9484ebcdef71d5f0c3e0a2948782bc83ee0ea699ef4
Pin SHA256: vRU+17BDT2iGsXvOi76E7TQMcTLXAqj0+jGPdW7L1vM=

RSA 2048 bits (e 65537) / SHA1withRSA
Weak or insecure signature, but no impact on root certificate
Path #1: Trusted
1 Sent by server www.hfct.or.kr
Fingerprint SHA256: e7d1e962ffa1855268ecb4d4147d33c25ba82e00ca8ec5462a62fcd7a3de9cf0
Pin SHA256: 9Dlld+FRARns70r1QLVpU/X0OmOFuHbL6R3sE0Gyeyo=

EC 256 bits / SHA384withECDSA
2 Extra download ZeroSSL ECC Domain Secure Site CA
Fingerprint SHA256: 5dd661d3cb33b5005cbed045a223ddc4445aaa41d1acb5df700884cad9ba4195
Pin SHA256: 3fLLVjRIWnCqDqIETU2OcnMP7EzmN/Z3Q/jQ8cIaAoc=

EC 384 bits / SHA384withECDSA
3 In trust store USERTrust ECC Certification Authority   Self-signed
Fingerprint SHA256: 4ff460d54b9c86dabfbcfc5712e0400d2bed3fbc4d4fbdaa86e06adcd2a9ad7a
Pin SHA256: ICGRfpgmOUXIWcQ/HXPLQTkFPEFPoDyjvH7ohhQpjzs=

EC 384 bits / SHA384withECDSA
Path #2: Trusted
1 Sent by server www.hfct.or.kr
Fingerprint SHA256: e7d1e962ffa1855268ecb4d4147d33c25ba82e00ca8ec5462a62fcd7a3de9cf0
Pin SHA256: 9Dlld+FRARns70r1QLVpU/X0OmOFuHbL6R3sE0Gyeyo=

EC 256 bits / SHA384withECDSA
2 Extra download ZeroSSL ECC Domain Secure Site CA
Fingerprint SHA256: 5dd661d3cb33b5005cbed045a223ddc4445aaa41d1acb5df700884cad9ba4195
Pin SHA256: 3fLLVjRIWnCqDqIETU2OcnMP7EzmN/Z3Q/jQ8cIaAoc=

EC 384 bits / SHA384withECDSA
3 Extra download USERTrust ECC Certification Authority
Fingerprint SHA256: a6cf64dbb4c8d5fd19ce48896068db03b533a8d1336c6256a87d00cbb3def3ea
Pin SHA256: ICGRfpgmOUXIWcQ/HXPLQTkFPEFPoDyjvH7ohhQpjzs=

EC 384 bits / SHA384withRSA
4 In trust store AAA Certificate Services   Self-signed
Fingerprint SHA256: d7a7a0fb5d7e2731d771e9484ebcdef71d5f0c3e0a2948782bc83ee0ea699ef4
Pin SHA256: vRU+17BDT2iGsXvOi76E7TQMcTLXAqj0+jGPdW7L1vM=

RSA 2048 bits (e 65537) / SHA1withRSA
Weak or insecure signature, but no impact on root certificate
Path #1: Trusted
1 Sent by server www.hfct.or.kr
Fingerprint SHA256: e7d1e962ffa1855268ecb4d4147d33c25ba82e00ca8ec5462a62fcd7a3de9cf0
Pin SHA256: 9Dlld+FRARns70r1QLVpU/X0OmOFuHbL6R3sE0Gyeyo=

EC 256 bits / SHA384withECDSA
2 Extra download ZeroSSL ECC Domain Secure Site CA
Fingerprint SHA256: 5dd661d3cb33b5005cbed045a223ddc4445aaa41d1acb5df700884cad9ba4195
Pin SHA256: 3fLLVjRIWnCqDqIETU2OcnMP7EzmN/Z3Q/jQ8cIaAoc=

EC 384 bits / SHA384withECDSA
3 In trust store USERTrust ECC Certification Authority   Self-signed
Fingerprint SHA256: 4ff460d54b9c86dabfbcfc5712e0400d2bed3fbc4d4fbdaa86e06adcd2a9ad7a
Pin SHA256: ICGRfpgmOUXIWcQ/HXPLQTkFPEFPoDyjvH7ohhQpjzs=

EC 384 bits / SHA384withECDSA
Path #2: Trusted
1 Sent by server www.hfct.or.kr
Fingerprint SHA256: e7d1e962ffa1855268ecb4d4147d33c25ba82e00ca8ec5462a62fcd7a3de9cf0
Pin SHA256: 9Dlld+FRARns70r1QLVpU/X0OmOFuHbL6R3sE0Gyeyo=

EC 256 bits / SHA384withECDSA
2 Extra download ZeroSSL ECC Domain Secure Site CA
Fingerprint SHA256: 5dd661d3cb33b5005cbed045a223ddc4445aaa41d1acb5df700884cad9ba4195
Pin SHA256: 3fLLVjRIWnCqDqIETU2OcnMP7EzmN/Z3Q/jQ8cIaAoc=

EC 384 bits / SHA384withECDSA
3 Extra download USERTrust ECC Certification Authority
Fingerprint SHA256: a6cf64dbb4c8d5fd19ce48896068db03b533a8d1336c6256a87d00cbb3def3ea
Pin SHA256: ICGRfpgmOUXIWcQ/HXPLQTkFPEFPoDyjvH7ohhQpjzs=

EC 384 bits / SHA384withRSA
4 In trust store AAA Certificate Services   Self-signed
Fingerprint SHA256: d7a7a0fb5d7e2731d771e9484ebcdef71d5f0c3e0a2948782bc83ee0ea699ef4
Pin SHA256: vRU+17BDT2iGsXvOi76E7TQMcTLXAqj0+jGPdW7L1vM=

RSA 2048 bits (e 65537) / SHA1withRSA
Weak or insecure signature, but no impact on root certificate
Path #1: Trusted
1 Sent by server www.hfct.or.kr
Fingerprint SHA256: e7d1e962ffa1855268ecb4d4147d33c25ba82e00ca8ec5462a62fcd7a3de9cf0
Pin SHA256: 9Dlld+FRARns70r1QLVpU/X0OmOFuHbL6R3sE0Gyeyo=

EC 256 bits / SHA384withECDSA
2 Extra download ZeroSSL ECC Domain Secure Site CA
Fingerprint SHA256: 5dd661d3cb33b5005cbed045a223ddc4445aaa41d1acb5df700884cad9ba4195
Pin SHA256: 3fLLVjRIWnCqDqIETU2OcnMP7EzmN/Z3Q/jQ8cIaAoc=

EC 384 bits / SHA384withECDSA
3 In trust store USERTrust ECC Certification Authority   Self-signed
Fingerprint SHA256: 4ff460d54b9c86dabfbcfc5712e0400d2bed3fbc4d4fbdaa86e06adcd2a9ad7a
Pin SHA256: ICGRfpgmOUXIWcQ/HXPLQTkFPEFPoDyjvH7ohhQpjzs=

EC 384 bits / SHA384withECDSA
Path #2: Trusted
1 Sent by server www.hfct.or.kr
Fingerprint SHA256: e7d1e962ffa1855268ecb4d4147d33c25ba82e00ca8ec5462a62fcd7a3de9cf0
Pin SHA256: 9Dlld+FRARns70r1QLVpU/X0OmOFuHbL6R3sE0Gyeyo=

EC 256 bits / SHA384withECDSA
2 Extra download ZeroSSL ECC Domain Secure Site CA
Fingerprint SHA256: 5dd661d3cb33b5005cbed045a223ddc4445aaa41d1acb5df700884cad9ba4195
Pin SHA256: 3fLLVjRIWnCqDqIETU2OcnMP7EzmN/Z3Q/jQ8cIaAoc=

EC 384 bits / SHA384withECDSA
3 Extra download USERTrust ECC Certification Authority
Fingerprint SHA256: a6cf64dbb4c8d5fd19ce48896068db03b533a8d1336c6256a87d00cbb3def3ea
Pin SHA256: ICGRfpgmOUXIWcQ/HXPLQTkFPEFPoDyjvH7ohhQpjzs=

EC 384 bits / SHA384withRSA
4 In trust store AAA Certificate Services   Self-signed
Fingerprint SHA256: d7a7a0fb5d7e2731d771e9484ebcdef71d5f0c3e0a2948782bc83ee0ea699ef4
Pin SHA256: vRU+17BDT2iGsXvOi76E7TQMcTLXAqj0+jGPdW7L1vM=

RSA 2048 bits (e 65537) / SHA1withRSA
Weak or insecure signature, but no impact on root certificate

Click here to expand

Configuration
Protocols
TLS 1.3 No
TLS 1.2 Yes
TLS 1.1 Yes
TLS 1.0 Yes
SSL 3 No
SSL 2 No


Cipher Suites
# TLS 1.2 (server has no preference)
TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA (0xc004)   WEAK 128
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA (0xc009)   ECDH secp521r1 (eq. 15360 bits RSA)   FS   WEAK 128
TLS_ECDH_RSA_WITH_AES_128_CBC_SHA (0xc00e)   WEAK 128
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256 (0xc023)   ECDH secp521r1 (eq. 15360 bits RSA)   FS   WEAK 128
TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256 (0xc025)   WEAK 128
TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256 (0xc029)   WEAK 128
TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 (0xc02b)   ECDH secp521r1 (eq. 15360 bits RSA)   FS 128
TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256 (0xc02d) 128
TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256 (0xc031) 128
TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA (0xc005)   WEAK 256
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA (0xc00a)   ECDH secp521r1 (eq. 15360 bits RSA)   FS   WEAK 256
TLS_ECDH_RSA_WITH_AES_256_CBC_SHA (0xc00f)   WEAK 256
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384 (0xc024)   ECDH secp521r1 (eq. 15360 bits RSA)   FS   WEAK 256
TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384 (0xc026)   WEAK 256
TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384 (0xc02a)   WEAK 256
TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 (0xc02c)   ECDH secp521r1 (eq. 15360 bits RSA)   FS 256
TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384 (0xc02e) 256
TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384 (0xc032) 256
# TLS 1.1 (server has no preference)
TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA (0xc004)   WEAK 128
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA (0xc009)   ECDH secp521r1 (eq. 15360 bits RSA)   FS   WEAK 128
TLS_ECDH_RSA_WITH_AES_128_CBC_SHA (0xc00e)   WEAK 128
TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA (0xc005)   WEAK 256
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA (0xc00a)   ECDH secp521r1 (eq. 15360 bits RSA)   FS   WEAK 256
TLS_ECDH_RSA_WITH_AES_256_CBC_SHA (0xc00f)   WEAK 256
# TLS 1.0 (server has no preference)
TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA (0xc004)   WEAK 128
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA (0xc009)   ECDH secp521r1 (eq. 15360 bits RSA)   FS   WEAK 128
TLS_ECDH_RSA_WITH_AES_128_CBC_SHA (0xc00e)   WEAK 128
TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA (0xc005)   WEAK 256
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA (0xc00a)   ECDH secp521r1 (eq. 15360 bits RSA)   FS   WEAK 256
TLS_ECDH_RSA_WITH_AES_256_CBC_SHA (0xc00f)   WEAK 256


Handshake Simulation
Android 2.3.7   No SNI 2 Server sent fatal alert: handshake_failure
Android 4.0.4 EC 256 (SHA384)   TLS 1.0 TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA   ECDH secp256r1  FS
Android 4.1.1 EC 256 (SHA384)   TLS 1.0 TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA   ECDH secp521r1  FS
Android 4.2.2 EC 256 (SHA384)   TLS 1.0 TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA   ECDH secp521r1  FS
Android 4.3 EC 256 (SHA384)   TLS 1.0 TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA   ECDH secp521r1  FS
Android 4.4.2 EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp521r1  FS
Android 5.0.0 EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA   ECDH secp521r1  FS
Android 6.0 EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Android 7.0 EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Android 8.0 EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Android 8.1 EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Android 9.0 EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Baidu Jan 2015 EC 256 (SHA384)   TLS 1.0 TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA   ECDH secp256r1  FS
BingPreview Jan 2015 EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp521r1  FS
Chrome 49 / XP SP3 Server sent fatal alert: handshake_failure
Chrome 69 / Win 7  R EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Chrome 70 / Win 10 EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Chrome 80 / Win 10  R EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Firefox 31.3.0 ESR / Win 7 EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Firefox 47 / Win 7  R EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Firefox 49 / XP SP3 EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Firefox 62 / Win 7  R EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Firefox 73 / Win 10  R EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Googlebot Feb 2018 EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
IE 7 / Vista EC 256 (SHA384)   TLS 1.0 TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA   ECDH secp256r1  FS
IE 8 / XP   No FS 1   No SNI 2 Server sent fatal alert: handshake_failure
IE 8-10 / Win 7  R EC 256 (SHA384)   TLS 1.0 TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA   ECDH secp256r1  FS
IE 11 / Win 7  R EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
IE 11 / Win 8.1  R EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
IE 10 / Win Phone 8.0 EC 256 (SHA384)   TLS 1.0 TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA   ECDH secp256r1  FS
IE 11 / Win Phone 8.1  R EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
IE 11 / Win Phone 8.1 Update  R EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
IE 11 / Win 10  R EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
Edge 15 / Win 10  R EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
Edge 16 / Win 10  R EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
Edge 18 / Win 10  R EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
Edge 13 / Win Phone 10  R EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
Java 6u45   No SNI 2 Server sent fatal alert: handshake_failure
Java 7u25 EC 256 (SHA384)   TLS 1.0 TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA   ECDH secp256r1  FS
Java 8u161 EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384   ECDH secp256r1  FS
Java 11.0.3 EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
Java 12.0.1 EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
OpenSSL 0.9.8y Server sent fatal alert: handshake_failure
OpenSSL 1.0.1l  R EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp521r1  FS
OpenSSL 1.0.2s  R EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
OpenSSL 1.1.0k  R EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
OpenSSL 1.1.1c  R EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
Safari 5.1.9 / OS X 10.6.8 EC 256 (SHA384)   TLS 1.0 TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA   ECDH secp256r1  FS
Safari 6 / iOS 6.0.1 EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384   ECDH secp256r1  FS
Safari 6.0.4 / OS X 10.8.4  R EC 256 (SHA384)   TLS 1.0 TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA   ECDH secp256r1  FS
Safari 7 / iOS 7.1  R EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384   ECDH secp256r1  FS
Safari 7 / OS X 10.9  R EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384   ECDH secp256r1  FS
Safari 8 / iOS 8.4  R EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384   ECDH secp256r1  FS
Safari 8 / OS X 10.10  R EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384   ECDH secp256r1  FS
Safari 9 / iOS 9  R EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
Safari 9 / OS X 10.11  R EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
Safari 10 / iOS 10  R EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
Safari 10 / OS X 10.12  R EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
Safari 12.1.2 / MacOS 10.14.6 Beta  R EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
Safari 12.1.1 / iOS 12.3.1  R EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
Apple ATS 9 / iOS 9  R EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
Yahoo Slurp Jan 2015 EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp384r1  FS
YandexBot Jan 2015 EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp521r1  FS
# Not simulated clients (Protocol mismatch)
IE 6 / XP   No FS 1   No SNI 2 Protocol mismatch (not simulated)

Click here to expand

(1) Clients that do not support Forward Secrecy (FS) are excluded when determining support for it.
(2) No support for virtual SSL hosting (SNI). Connects to the default site if the server uses SNI.
(3) Only first connection attempt simulated. Browsers sometimes retry with a lower protocol version.
(R) Denotes a reference browser or client, with which we expect better effective security.
(All) We use defaults, but some platforms do not use their best protocols and features (e.g., Java 6 & 7, older IE).
(All) Certificate trust is not checked in handshake simulation, we only perform TLS handshake.


Protocol Details
Secure Renegotiation Supported
Secure Client-Initiated Renegotiation No
Insecure Client-Initiated Renegotiation No
BEAST attack Not mitigated server-side (more info)   TLS 1.0: 0xc004
POODLE (SSLv3) No, SSL 3 not supported (more info)
POODLE (TLS) No (more info)
Zombie POODLE No (more info)   TLS 1.2 : 0xc009
GOLDENDOODLE No (more info)   TLS 1.2 : 0xc009
OpenSSL 0-Length No (more info)   TLS 1.2 : 0xc009
Sleeping POODLE No (more info)   TLS 1.2 : 0xc009
Downgrade attack prevention No, TLS_FALLBACK_SCSV not supported (more info)
SSL/TLS compression No
RC4 No
Heartbeat (extension) No
Heartbleed (vulnerability) No (more info)
Ticketbleed (vulnerability) No (more info)
OpenSSL CCS vuln. (CVE-2014-0224) No (more info)
OpenSSL Padding Oracle vuln.
(CVE-2016-2107)
No (more info)
ROBOT (vulnerability) No (more info)
Forward Secrecy Yes (with most browsers)   ROBUST (more info)
ALPN No
NPN No
Session resumption (caching) Unknown
Session resumption (tickets) No
OCSP stapling No
Strict Transport Security (HSTS) Unknown (failed HTTP request?)
HSTS Preloading Not in: Chrome  Edge  Firefox  IE 
Public Key Pinning (HPKP) Unknown (failed HTTP request?)
Public Key Pinning Report-Only Unknown (failed HTTP request?)
Public Key Pinning (Static) No (more info)
Long handshake intolerance No
TLS extension intolerance No
TLS version intolerance No
Incorrect SNI alerts No
Uses common DH primes No, DHE suites not supported
DH public server param (Ys) reuse No, DHE suites not supported
ECDH public server param reuse No
Supported Named Groups secp256r1
SSL 2 handshake compatibility Yes


HTTP Requests
1 https://www.hfct.or.kr/  (Request failed)


Miscellaneous
Test date Sat, 14 Jun 2025 03:45:26 UTC
Test duration 118.343 seconds
HTTP status code Request failed
HTTP server signature Unknown
Server hostname -


SSL Report v2.4.0