SSL Report: sdo.kasi.re.kr (203.253.237.117)
Assessed on:  Fri, 18 Jul 2025 03:27:00 UTC | Clear cache
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Summary
Overall Rating
F
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 supports anonymous (insecure) suites (see below for details). Grade set to F.
This server supports insecure cipher suites (see below for details). Grade set to F.
This server accepts RC4 cipher, but only with older protocols. Grade capped to B.  MORE INFO »
This server does not support Forward Secrecy with the reference browsers. Grade capped to B.  MORE INFO »
This server's certificate is not trusted by Java trust store (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: RSA 2048 bits (SHA256withRSA)
Server Key and Certificate #1
Subject *.kasi.re.kr
Fingerprint SHA256: da0681692ff0969135524eaf9771edce7fd27acacca79fefecdd2817b1c61183
Pin SHA256: Gq7kFUihJDNCcTKFytPx8+0cDpuT/m1uGOEEDgUpSlc=
Common names *.kasi.re.kr
Alternative names *.kasi.re.kr kasi.re.kr
Serial Number 7cb6de988c15b4de6ac64a9757eb3bb4117d70cf
Valid from Wed, 30 Oct 2024 06:15:16 UTC
Valid until Sun, 30 Nov 2025 06:15:15 UTC (expires in 4 months and 11 days)
Key RSA 2048 bits (e 65537)
Weak key (Debian) No
Issuer TuringSign RSA Secure CA
AIA: http://public.wisekey.com/crt/tsrsasecureca.cer
Signature algorithm SHA256withRSA
Extended Validation No
Certificate Transparency Yes (certificate)
OCSP Must Staple No
Revocation information CRL, OCSP
CRL: http://public.wisekey.com/crl/tsrsasecureca.crl
OCSP: http://ocsp.wisekey.com
Revocation status Good (not revoked)
DNS CAA No (more info)
Trusted Yes
Mozilla  Apple  Android  Java  Windows 


Additional Certificates (if supplied)
Certificates provided 2 (3276 bytes)
Chain issues None
#2
Subject TuringSign RSA Secure CA
Fingerprint SHA256: 12976558b68e8e1eaa79a629a8e4d17edef93f5ac30de6dfb0cdee389d56d156
Pin SHA256: LjNGvuYlXy4cly5bwppVDU4T8q5pCHAHEEAG++Nx1WA=
Valid until Sun, 21 Jun 2026 11:53:07 UTC (expires in 11 months and 3 days)
Key RSA 4096 bits (e 65537)
Issuer OISTE WISeKey Global Root GB CA
Signature algorithm SHA256withRSA


Certification Paths
Path #1: Trusted
1 Sent by server *.kasi.re.kr
Fingerprint SHA256: da0681692ff0969135524eaf9771edce7fd27acacca79fefecdd2817b1c61183
Pin SHA256: Gq7kFUihJDNCcTKFytPx8+0cDpuT/m1uGOEEDgUpSlc=
RSA 2048 bits (e 65537) / SHA256withRSA
2 Sent by server TuringSign RSA Secure CA
Fingerprint SHA256: 12976558b68e8e1eaa79a629a8e4d17edef93f5ac30de6dfb0cdee389d56d156
Pin SHA256: LjNGvuYlXy4cly5bwppVDU4T8q5pCHAHEEAG++Nx1WA=
RSA 4096 bits (e 65537) / SHA256withRSA
3 In trust store OISTE WISeKey Global Root GB CA   Self-signed
Fingerprint SHA256: 6b9c08e86eb0f767cfad65cd98b62149e5494a67f5845e7bd1ed019f27b86bd6
Pin SHA256: FJ8u5juaXlgDJAp3DcmR/C40ReYoMcJFpJvE8fc4/5w=
RSA 2048 bits (e 65537) / SHA256withRSA
Path #1: Trusted
1 Sent by server *.kasi.re.kr
Fingerprint SHA256: da0681692ff0969135524eaf9771edce7fd27acacca79fefecdd2817b1c61183
Pin SHA256: Gq7kFUihJDNCcTKFytPx8+0cDpuT/m1uGOEEDgUpSlc=
RSA 2048 bits (e 65537) / SHA256withRSA
2 Sent by server TuringSign RSA Secure CA
Fingerprint SHA256: 12976558b68e8e1eaa79a629a8e4d17edef93f5ac30de6dfb0cdee389d56d156
Pin SHA256: LjNGvuYlXy4cly5bwppVDU4T8q5pCHAHEEAG++Nx1WA=
RSA 4096 bits (e 65537) / SHA256withRSA
3 In trust store OISTE WISeKey Global Root GB CA   Self-signed
Fingerprint SHA256: 6b9c08e86eb0f767cfad65cd98b62149e5494a67f5845e7bd1ed019f27b86bd6
Pin SHA256: FJ8u5juaXlgDJAp3DcmR/C40ReYoMcJFpJvE8fc4/5w=
RSA 2048 bits (e 65537) / SHA256withRSA
Path #1: Trusted
1 Sent by server *.kasi.re.kr
Fingerprint SHA256: da0681692ff0969135524eaf9771edce7fd27acacca79fefecdd2817b1c61183
Pin SHA256: Gq7kFUihJDNCcTKFytPx8+0cDpuT/m1uGOEEDgUpSlc=
RSA 2048 bits (e 65537) / SHA256withRSA
2 Sent by server TuringSign RSA Secure CA
Fingerprint SHA256: 12976558b68e8e1eaa79a629a8e4d17edef93f5ac30de6dfb0cdee389d56d156
Pin SHA256: LjNGvuYlXy4cly5bwppVDU4T8q5pCHAHEEAG++Nx1WA=
RSA 4096 bits (e 65537) / SHA256withRSA
3 In trust store OISTE WISeKey Global Root GB CA   Self-signed
Fingerprint SHA256: 6b9c08e86eb0f767cfad65cd98b62149e5494a67f5845e7bd1ed019f27b86bd6
Pin SHA256: FJ8u5juaXlgDJAp3DcmR/C40ReYoMcJFpJvE8fc4/5w=
RSA 2048 bits (e 65537) / SHA256withRSA
Path #1: Not trusted (path does not chain to a trusted anchor)
1 Sent by server *.kasi.re.kr
Fingerprint SHA256: da0681692ff0969135524eaf9771edce7fd27acacca79fefecdd2817b1c61183
Pin SHA256: Gq7kFUihJDNCcTKFytPx8+0cDpuT/m1uGOEEDgUpSlc=
RSA 2048 bits (e 65537) / SHA256withRSA
2 Sent by server TuringSign RSA Secure CA
Fingerprint SHA256: 12976558b68e8e1eaa79a629a8e4d17edef93f5ac30de6dfb0cdee389d56d156
Pin SHA256: LjNGvuYlXy4cly5bwppVDU4T8q5pCHAHEEAG++Nx1WA=
RSA 4096 bits (e 65537) / SHA256withRSA
3 Extra download
  Not in trust store 		OISTE WISeKey Global Root GB CA   Self-signed
Fingerprint SHA256: 6b9c08e86eb0f767cfad65cd98b62149e5494a67f5845e7bd1ed019f27b86bd6
Pin SHA256: FJ8u5juaXlgDJAp3DcmR/C40ReYoMcJFpJvE8fc4/5w=
RSA 2048 bits (e 65537) / SHA256withRSA
Path #1: Trusted
1 Sent by server *.kasi.re.kr
Fingerprint SHA256: da0681692ff0969135524eaf9771edce7fd27acacca79fefecdd2817b1c61183
Pin SHA256: Gq7kFUihJDNCcTKFytPx8+0cDpuT/m1uGOEEDgUpSlc=
RSA 2048 bits (e 65537) / SHA256withRSA
2 Sent by server TuringSign RSA Secure CA
Fingerprint SHA256: 12976558b68e8e1eaa79a629a8e4d17edef93f5ac30de6dfb0cdee389d56d156
Pin SHA256: LjNGvuYlXy4cly5bwppVDU4T8q5pCHAHEEAG++Nx1WA=
RSA 4096 bits (e 65537) / SHA256withRSA
3 In trust store OISTE WISeKey Global Root GB CA   Self-signed
Fingerprint SHA256: 6b9c08e86eb0f767cfad65cd98b62149e5494a67f5845e7bd1ed019f27b86bd6
Pin SHA256: FJ8u5juaXlgDJAp3DcmR/C40ReYoMcJFpJvE8fc4/5w=
RSA 2048 bits (e 65537) / SHA256withRSA

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 (suites in server-preferred order)
TLS_RSA_WITH_AES_128_CBC_SHA (0x2f)   WEAK 128
TLS_RSA_WITH_AES_128_CBC_SHA256 (0x3c)   WEAK 128
TLS_RSA_WITH_AES_256_CBC_SHA (0x35)   WEAK 256
TLS_RSA_WITH_AES_256_CBC_SHA256 (0x3d)   WEAK 256
TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (0xc030)   ECDH secp256r1 (eq. 3072 bits RSA)   FS 256
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 (0xc028)   ECDH secp256r1 (eq. 3072 bits RSA)   FS   WEAK 256
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA (0xc014)   ECDH secp256r1 (eq. 3072 bits RSA)   FS   WEAK 256
TLS_ECDH_anon_WITH_AES_256_CBC_SHA (0xc019)   INSECURE 256
TLS_RSA_WITH_AES_256_GCM_SHA384 (0x9d)   WEAK 256
TLS_RSA_WITH_CAMELLIA_256_CBC_SHA (0x84)   WEAK 256
TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA (0xc012)   ECDH secp256r1 (eq. 3072 bits RSA)   FS   WEAK 112
TLS_ECDH_anon_WITH_3DES_EDE_CBC_SHA (0xc017)   INSECURE 112
TLS_RSA_WITH_3DES_EDE_CBC_SHA (0xa)   WEAK 112
TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (0xc02f)   ECDH secp256r1 (eq. 3072 bits RSA)   FS 128
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 (0xc027)   ECDH secp256r1 (eq. 3072 bits RSA)   FS   WEAK 128
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA (0xc013)   ECDH secp256r1 (eq. 3072 bits RSA)   FS   WEAK 128
TLS_ECDH_anon_WITH_AES_128_CBC_SHA (0xc018)   INSECURE 128
TLS_RSA_WITH_AES_128_GCM_SHA256 (0x9c)   WEAK 128
TLS_RSA_WITH_SEED_CBC_SHA (0x96)   WEAK 128
TLS_RSA_WITH_CAMELLIA_128_CBC_SHA (0x41)   WEAK 128
TLS_RSA_WITH_IDEA_CBC_SHA (0x7)   WEAK 128
TLS_ECDHE_RSA_WITH_RC4_128_SHA (0xc011)   ECDH secp256r1 (eq. 3072 bits RSA)   FS   INSECURE 128
TLS_ECDH_anon_WITH_RC4_128_SHA (0xc016)   INSECURE 128
TLS_RSA_WITH_RC4_128_SHA (0x5)   INSECURE 128
TLS_RSA_WITH_RC4_128_MD5 (0x4)   INSECURE 128
TLS_RSA_WITH_DES_CBC_SHA (0x9)   INSECURE 56
# TLS 1.1 (suites in server-preferred order)
TLS_RSA_WITH_AES_128_CBC_SHA (0x2f)   WEAK 128
TLS_RSA_WITH_AES_256_CBC_SHA (0x35)   WEAK 256
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA (0xc014)   ECDH secp256r1 (eq. 3072 bits RSA)   FS   WEAK 256
TLS_ECDH_anon_WITH_AES_256_CBC_SHA (0xc019)   INSECURE 256
TLS_RSA_WITH_CAMELLIA_256_CBC_SHA (0x84)   WEAK 256
TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA (0xc012)   ECDH secp256r1 (eq. 3072 bits RSA)   FS   WEAK 112
TLS_ECDH_anon_WITH_3DES_EDE_CBC_SHA (0xc017)   INSECURE 112
TLS_RSA_WITH_3DES_EDE_CBC_SHA (0xa)   WEAK 112
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA (0xc013)   ECDH secp256r1 (eq. 3072 bits RSA)   FS   WEAK 128
TLS_ECDH_anon_WITH_AES_128_CBC_SHA (0xc018)   INSECURE 128
TLS_RSA_WITH_SEED_CBC_SHA (0x96)   WEAK 128
TLS_RSA_WITH_CAMELLIA_128_CBC_SHA (0x41)   WEAK 128
TLS_RSA_WITH_IDEA_CBC_SHA (0x7)   WEAK 128
TLS_ECDHE_RSA_WITH_RC4_128_SHA (0xc011)   ECDH secp256r1 (eq. 3072 bits RSA)   FS   INSECURE 128
TLS_ECDH_anon_WITH_RC4_128_SHA (0xc016)   INSECURE 128
TLS_RSA_WITH_RC4_128_SHA (0x5)   INSECURE 128
TLS_RSA_WITH_RC4_128_MD5 (0x4)   INSECURE 128
TLS_RSA_WITH_DES_CBC_SHA (0x9)   INSECURE 56
# TLS 1.0 (suites in server-preferred order)
TLS_RSA_WITH_AES_128_CBC_SHA (0x2f)   WEAK 128
TLS_RSA_WITH_AES_256_CBC_SHA (0x35)   WEAK 256
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA (0xc014)   ECDH secp256r1 (eq. 3072 bits RSA)   FS   WEAK 256
TLS_ECDH_anon_WITH_AES_256_CBC_SHA (0xc019)   INSECURE 256
TLS_RSA_WITH_CAMELLIA_256_CBC_SHA (0x84)   WEAK 256
TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA (0xc012)   ECDH secp256r1 (eq. 3072 bits RSA)   FS   WEAK 112
TLS_ECDH_anon_WITH_3DES_EDE_CBC_SHA (0xc017)   INSECURE 112
TLS_RSA_WITH_3DES_EDE_CBC_SHA (0xa)   WEAK 112
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA (0xc013)   ECDH secp256r1 (eq. 3072 bits RSA)   FS   WEAK 128
TLS_ECDH_anon_WITH_AES_128_CBC_SHA (0xc018)   INSECURE 128
TLS_RSA_WITH_SEED_CBC_SHA (0x96)   WEAK 128
TLS_RSA_WITH_CAMELLIA_128_CBC_SHA (0x41)   WEAK 128
TLS_RSA_WITH_IDEA_CBC_SHA (0x7)   WEAK 128
TLS_ECDHE_RSA_WITH_RC4_128_SHA (0xc011)   ECDH secp256r1 (eq. 3072 bits RSA)   FS   INSECURE 128
TLS_ECDH_anon_WITH_RC4_128_SHA (0xc016)   INSECURE 128
TLS_RSA_WITH_RC4_128_SHA (0x5)   INSECURE 128
TLS_RSA_WITH_RC4_128_MD5 (0x4)   INSECURE 128
TLS_RSA_WITH_DES_CBC_SHA (0x9)   INSECURE 56


Handshake Simulation
Android 2.3.7   No SNI 2 RSA 2048 (SHA256)   TLS 1.0 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Android 4.0.4 RSA 2048 (SHA256)   TLS 1.0 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Android 4.1.1 RSA 2048 (SHA256)   TLS 1.0 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Android 4.2.2 RSA 2048 (SHA256)   TLS 1.0 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Android 4.3 RSA 2048 (SHA256)   TLS 1.0 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Android 4.4.2 RSA 2048 (SHA256)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Android 5.0.0 RSA 2048 (SHA256)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Android 6.0 RSA 2048 (SHA256)   TLS 1.2 > http/1.1 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Android 7.0 RSA 2048 (SHA256)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Android 8.0 RSA 2048 (SHA256)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Android 8.1 RSA 2048 (SHA256)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Android 9.0 RSA 2048 (SHA256)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Baidu Jan 2015 RSA 2048 (SHA256)   TLS 1.0 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
BingPreview Jan 2015 RSA 2048 (SHA256)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Chrome 49 / XP SP3 RSA 2048 (SHA256)   TLS 1.2 > http/1.1 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Chrome 69 / Win 7  R RSA 2048 (SHA256)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Chrome 70 / Win 10 RSA 2048 (SHA256)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Chrome 80 / Win 10  R RSA 2048 (SHA256)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Firefox 31.3.0 ESR / Win 7 RSA 2048 (SHA256)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Firefox 47 / Win 7  R RSA 2048 (SHA256)   TLS 1.2 > http/1.1 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Firefox 49 / XP SP3 RSA 2048 (SHA256)   TLS 1.2 > http/1.1 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Firefox 62 / Win 7  R RSA 2048 (SHA256)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Firefox 73 / Win 10  R RSA 2048 (SHA256)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Googlebot Feb 2018 RSA 2048 (SHA256)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
IE 7 / Vista RSA 2048 (SHA256)   TLS 1.0 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
IE 8 / XP   No FS 1   No SNI 2 RSA 2048 (SHA256)   TLS 1.0 TLS_RSA_WITH_3DES_EDE_CBC_SHA
IE 8-10 / Win 7  R RSA 2048 (SHA256)   TLS 1.0 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
IE 11 / Win 7  R RSA 2048 (SHA256)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
IE 11 / Win 8.1  R RSA 2048 (SHA256)   TLS 1.2 > http/1.1 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
IE 10 / Win Phone 8.0 RSA 2048 (SHA256)   TLS 1.0 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
IE 11 / Win Phone 8.1  R RSA 2048 (SHA256)   TLS 1.2 > http/1.1 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
IE 11 / Win Phone 8.1 Update  R RSA 2048 (SHA256)   TLS 1.2 > http/1.1 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
IE 11 / Win 10  R RSA 2048 (SHA256)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Edge 15 / Win 10  R RSA 2048 (SHA256)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Edge 16 / Win 10  R RSA 2048 (SHA256)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Edge 18 / Win 10  R RSA 2048 (SHA256)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Edge 13 / Win Phone 10  R RSA 2048 (SHA256)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Java 6u45   No SNI 2 RSA 2048 (SHA256)   TLS 1.0 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Java 7u25 RSA 2048 (SHA256)   TLS 1.0 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Java 8u161 RSA 2048 (SHA256)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Java 11.0.3 RSA 2048 (SHA256)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Java 12.0.1 RSA 2048 (SHA256)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
OpenSSL 0.9.8y RSA 2048 (SHA256)   TLS 1.0 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
OpenSSL 1.0.1l  R RSA 2048 (SHA256)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
OpenSSL 1.0.2s  R RSA 2048 (SHA256)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
OpenSSL 1.1.0k  R RSA 2048 (SHA256)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
OpenSSL 1.1.1c  R RSA 2048 (SHA256)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Safari 5.1.9 / OS X 10.6.8 RSA 2048 (SHA256)   TLS 1.0 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Safari 6 / iOS 6.0.1 RSA 2048 (SHA256)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Safari 6.0.4 / OS X 10.8.4  R RSA 2048 (SHA256)   TLS 1.0 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Safari 7 / iOS 7.1  R RSA 2048 (SHA256)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Safari 7 / OS X 10.9  R RSA 2048 (SHA256)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Safari 8 / iOS 8.4  R RSA 2048 (SHA256)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Safari 8 / OS X 10.10  R RSA 2048 (SHA256)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Safari 9 / iOS 9  R RSA 2048 (SHA256)   TLS 1.2 > http/1.1 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Safari 9 / OS X 10.11  R RSA 2048 (SHA256)   TLS 1.2 > http/1.1 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Safari 10 / iOS 10  R RSA 2048 (SHA256)   TLS 1.2 > http/1.1 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Safari 10 / OS X 10.12  R RSA 2048 (SHA256)   TLS 1.2 > http/1.1 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Safari 12.1.2 / MacOS 10.14.6 Beta  R RSA 2048 (SHA256)   TLS 1.2 > http/1.1 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Safari 12.1.1 / iOS 12.3.1  R RSA 2048 (SHA256)   TLS 1.2 > http/1.1 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Apple ATS 9 / iOS 9  R RSA 2048 (SHA256)   TLS 1.2 > http/1.1 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
Yahoo Slurp Jan 2015 RSA 2048 (SHA256)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
YandexBot Jan 2015 RSA 2048 (SHA256)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No 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: 0x2f
POODLE (SSLv3) No, SSL 3 not supported (more info)
POODLE (TLS) No (more info)
Zombie POODLE No (more info)   TLS 1.2 : 0x002f
GOLDENDOODLE No (more info)   TLS 1.2 : 0x002f
OpenSSL 0-Length No (more info)   TLS 1.2 : 0x002f
Sleeping POODLE No (more info)   TLS 1.2 : 0x002f
Downgrade attack prevention Yes, TLS_FALLBACK_SCSV supported (more info)
SSL/TLS compression No
RC4 Yes   INSECURE (more info)
Heartbeat (extension) Yes
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 With some browsers (more info)
ALPN No
NPN Yes   http/1.1
Session resumption (caching) No (IDs assigned but not accepted)
Session resumption (tickets) No
OCSP stapling No
Strict Transport Security (HSTS) No
HSTS Preloading Not in: Chrome  Edge  Firefox  IE 
Public Key Pinning (HPKP) No (more info)
Public Key Pinning Report-Only No
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://sdo.kasi.re.kr/  (HTTP/1.1 200 OK)
1
Server Microsoft-IIS/8.0
Date Fri, 18 Jul 2025 03:23:43 GMT
Content-Type text/html; charset=utf-8
Content-Length 7022
Connection close
Cache-Control private
Set-Cookie ASP.NET_SessionId=tbchwcy0vybvtyfqbgpmjkng; path=/; HttpOnly; SameSite=Lax
X-AspNet-Version 4.0.30319
X-Powered-By ASP.NET


Miscellaneous
Test date Fri, 18 Jul 2025 03:23:20 UTC
Test duration 219.285 seconds
HTTP status code 200
HTTP server signature Microsoft-IIS/8.0
Server hostname -


SSL Report v2.4.1