SSL Report: cmi.ucsd.edu (132.239.213.195)
Assessed on:  Fri, 21 Nov 2025 21:16:53 UTC | Clear cache

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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.
This server does not support TLS 1.3.  MORE INFO »
Certificate #1: EC 256 bits (SHA256withECDSA)
Server Key and Certificate #1
Subject cmiweb.ucsd.edu
Fingerprint SHA256: 127884104f90bb33bb8e0d9eef88a2fb8e7dfa48afaa86680625fc2fb0cd445a
Pin SHA256: woNZa79rasOQm7fDN+CvGsJ1wPeY5zUVsA8XU61FOsM=
Common names cmiweb.ucsd.edu
Alternative names cmiweb.ucsd.edu cmi.ucsd.edu microbiome.ucsd.edu
Serial Number 00bb86298afd812485b1115fc006c42a27
Valid from Thu, 14 Aug 2025 00:00:00 UTC
Valid until Fri, 14 Aug 2026 23:59:59 UTC (expires in 8 months and 24 days)
Key EC 256 bits
Weak key (Debian) No
Issuer InCommon ECC Server CA 2
AIA: http://crt.sectigo.com/InCommonECCServerCA2.crt
Signature algorithm SHA256withECDSA
Extended Validation No
Certificate Transparency Yes (certificate)
OCSP Must Staple No
Revocation information CRL, OCSP
CRL: http://crl.sectigo.com/InCommonECCServerCA2.crl
OCSP: http://ocsp.sectigo.com
Revocation status Good (not revoked)
CRL ERROR: IOException occurred
DNS CAA No (more info)
Trusted Yes
Mozilla  Apple  Android  Java  Windows 


Additional Certificates (if supplied)
Certificates provided 4 (5287 bytes)
Chain issues Incomplete, Extra certs, Contains anchor
#2
Subject AddTrust External CA Root   Not in trust store
Fingerprint SHA256: 687fa451382278fff0c8b11f8d43d576671c6eb2bceab413fb83d965d06d2ff2
Pin SHA256: lCppFqbkrlJ3EcVFAkeip0+44VaoJUymbnOaEUk7tEU=
Valid until Sat, 30 May 2020 10:48:38 UTC (expired 5 years and 5 months ago)   EXPIRED
Key RSA 2048 bits (e 65537)
Issuer AddTrust External CA Root   Self-signed
Signature algorithm SHA1withRSA   Weak, but no impact on root certificate
#3
Subject USERTrust RSA Certification Authority
Fingerprint SHA256: 1a5174980a294a528a110726d5855650266c48d9883bea692b67b6d726da98c5
Pin SHA256: x4QzPSC810K5/cMjb05Qm4k3Bw5zBn4lTdO/nEW/Td4=
Valid until Sat, 30 May 2020 10:48:38 UTC (expired 5 years and 5 months ago)   EXPIRED
Key RSA 4096 bits (e 65537)
Issuer AddTrust External CA Root
Signature algorithm SHA384withRSA
#4
Subject InCommon RSA Server CA
Fingerprint SHA256: 0a05c462756390dd1f1d5dd82794c300f04be789dce76d7e312f790d68fd385a
Pin SHA256: b1JA6+4svjmZnxGjAiQY3RS0A9FtjKLCWaRlVmCPM28=
Valid until Sat, 05 Oct 2024 23:59:59 UTC (expired 1 year and 1 month ago)   EXPIRED
Key RSA 2048 bits (e 65537)
Issuer USERTrust RSA Certification Authority
Signature algorithm SHA384withRSA


Certification Paths
Path #1: Trusted
1 Sent by server cmiweb.ucsd.edu
Fingerprint SHA256: 127884104f90bb33bb8e0d9eef88a2fb8e7dfa48afaa86680625fc2fb0cd445a
Pin SHA256: woNZa79rasOQm7fDN+CvGsJ1wPeY5zUVsA8XU61FOsM=

EC 256 bits / SHA256withECDSA
CRL ERROR: IOException occurred
2 Extra download InCommon ECC Server CA 2
Fingerprint SHA256: b78d8eb347f8a6777ebf9fd23b83800abc88cdb3cf1b40706b11b05f1fa06fbc
Pin SHA256: UJd7EKNaKP0I5AOmPVjTsmFeym78buyJ/UWoURYuvQA=

EC 256 bits / SHA384withECDSA
CRL ERROR: IOException occurred
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 cmiweb.ucsd.edu
Fingerprint SHA256: 127884104f90bb33bb8e0d9eef88a2fb8e7dfa48afaa86680625fc2fb0cd445a
Pin SHA256: woNZa79rasOQm7fDN+CvGsJ1wPeY5zUVsA8XU61FOsM=

EC 256 bits / SHA256withECDSA
CRL ERROR: IOException occurred
2 Extra download InCommon ECC Server CA 2
Fingerprint SHA256: b78d8eb347f8a6777ebf9fd23b83800abc88cdb3cf1b40706b11b05f1fa06fbc
Pin SHA256: UJd7EKNaKP0I5AOmPVjTsmFeym78buyJ/UWoURYuvQA=

EC 256 bits / SHA384withECDSA
CRL ERROR: IOException occurred
3 Extra download USERTrust ECC Certification Authority
Fingerprint SHA256: a6cf64dbb4c8d5fd19ce48896068db03b533a8d1336c6256a87d00cbb3def3ea
Pin SHA256: ICGRfpgmOUXIWcQ/HXPLQTkFPEFPoDyjvH7ohhQpjzs=

EC 384 bits / SHA384withRSA
CRL ERROR: IOException occurred
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 cmiweb.ucsd.edu
Fingerprint SHA256: 127884104f90bb33bb8e0d9eef88a2fb8e7dfa48afaa86680625fc2fb0cd445a
Pin SHA256: woNZa79rasOQm7fDN+CvGsJ1wPeY5zUVsA8XU61FOsM=

EC 256 bits / SHA256withECDSA
CRL ERROR: IOException occurred
2 Extra download InCommon ECC Server CA 2
Fingerprint SHA256: b78d8eb347f8a6777ebf9fd23b83800abc88cdb3cf1b40706b11b05f1fa06fbc
Pin SHA256: UJd7EKNaKP0I5AOmPVjTsmFeym78buyJ/UWoURYuvQA=

EC 256 bits / SHA384withECDSA
CRL ERROR: IOException occurred
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 cmiweb.ucsd.edu
Fingerprint SHA256: 127884104f90bb33bb8e0d9eef88a2fb8e7dfa48afaa86680625fc2fb0cd445a
Pin SHA256: woNZa79rasOQm7fDN+CvGsJ1wPeY5zUVsA8XU61FOsM=

EC 256 bits / SHA256withECDSA
CRL ERROR: IOException occurred
2 Extra download InCommon ECC Server CA 2
Fingerprint SHA256: b78d8eb347f8a6777ebf9fd23b83800abc88cdb3cf1b40706b11b05f1fa06fbc
Pin SHA256: UJd7EKNaKP0I5AOmPVjTsmFeym78buyJ/UWoURYuvQA=

EC 256 bits / SHA384withECDSA
CRL ERROR: IOException occurred
3 Extra download USERTrust ECC Certification Authority
Fingerprint SHA256: a6cf64dbb4c8d5fd19ce48896068db03b533a8d1336c6256a87d00cbb3def3ea
Pin SHA256: ICGRfpgmOUXIWcQ/HXPLQTkFPEFPoDyjvH7ohhQpjzs=

EC 384 bits / SHA384withRSA
CRL ERROR: IOException occurred
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 cmiweb.ucsd.edu
Fingerprint SHA256: 127884104f90bb33bb8e0d9eef88a2fb8e7dfa48afaa86680625fc2fb0cd445a
Pin SHA256: woNZa79rasOQm7fDN+CvGsJ1wPeY5zUVsA8XU61FOsM=

EC 256 bits / SHA256withECDSA
CRL ERROR: IOException occurred
2 Extra download InCommon ECC Server CA 2
Fingerprint SHA256: b78d8eb347f8a6777ebf9fd23b83800abc88cdb3cf1b40706b11b05f1fa06fbc
Pin SHA256: UJd7EKNaKP0I5AOmPVjTsmFeym78buyJ/UWoURYuvQA=

EC 256 bits / SHA384withECDSA
CRL ERROR: IOException occurred
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 cmiweb.ucsd.edu
Fingerprint SHA256: 127884104f90bb33bb8e0d9eef88a2fb8e7dfa48afaa86680625fc2fb0cd445a
Pin SHA256: woNZa79rasOQm7fDN+CvGsJ1wPeY5zUVsA8XU61FOsM=

EC 256 bits / SHA256withECDSA
CRL ERROR: IOException occurred
2 Extra download InCommon ECC Server CA 2
Fingerprint SHA256: b78d8eb347f8a6777ebf9fd23b83800abc88cdb3cf1b40706b11b05f1fa06fbc
Pin SHA256: UJd7EKNaKP0I5AOmPVjTsmFeym78buyJ/UWoURYuvQA=

EC 256 bits / SHA384withECDSA
CRL ERROR: IOException occurred
3 Extra download USERTrust ECC Certification Authority
Fingerprint SHA256: a6cf64dbb4c8d5fd19ce48896068db03b533a8d1336c6256a87d00cbb3def3ea
Pin SHA256: ICGRfpgmOUXIWcQ/HXPLQTkFPEFPoDyjvH7ohhQpjzs=

EC 384 bits / SHA384withRSA
CRL ERROR: IOException occurred
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 cmiweb.ucsd.edu
Fingerprint SHA256: 127884104f90bb33bb8e0d9eef88a2fb8e7dfa48afaa86680625fc2fb0cd445a
Pin SHA256: woNZa79rasOQm7fDN+CvGsJ1wPeY5zUVsA8XU61FOsM=

EC 256 bits / SHA256withECDSA
CRL ERROR: IOException occurred
2 Extra download InCommon ECC Server CA 2
Fingerprint SHA256: b78d8eb347f8a6777ebf9fd23b83800abc88cdb3cf1b40706b11b05f1fa06fbc
Pin SHA256: UJd7EKNaKP0I5AOmPVjTsmFeym78buyJ/UWoURYuvQA=

EC 256 bits / SHA384withECDSA
CRL ERROR: IOException occurred
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 cmiweb.ucsd.edu
Fingerprint SHA256: 127884104f90bb33bb8e0d9eef88a2fb8e7dfa48afaa86680625fc2fb0cd445a
Pin SHA256: woNZa79rasOQm7fDN+CvGsJ1wPeY5zUVsA8XU61FOsM=

EC 256 bits / SHA256withECDSA
CRL ERROR: IOException occurred
2 Extra download InCommon ECC Server CA 2
Fingerprint SHA256: b78d8eb347f8a6777ebf9fd23b83800abc88cdb3cf1b40706b11b05f1fa06fbc
Pin SHA256: UJd7EKNaKP0I5AOmPVjTsmFeym78buyJ/UWoURYuvQA=

EC 256 bits / SHA384withECDSA
CRL ERROR: IOException occurred
3 Extra download USERTrust ECC Certification Authority
Fingerprint SHA256: a6cf64dbb4c8d5fd19ce48896068db03b533a8d1336c6256a87d00cbb3def3ea
Pin SHA256: ICGRfpgmOUXIWcQ/HXPLQTkFPEFPoDyjvH7ohhQpjzs=

EC 384 bits / SHA384withRSA
CRL ERROR: IOException occurred
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 cmiweb.ucsd.edu
Fingerprint SHA256: 127884104f90bb33bb8e0d9eef88a2fb8e7dfa48afaa86680625fc2fb0cd445a
Pin SHA256: woNZa79rasOQm7fDN+CvGsJ1wPeY5zUVsA8XU61FOsM=

EC 256 bits / SHA256withECDSA
CRL ERROR: IOException occurred
2 Extra download InCommon ECC Server CA 2
Fingerprint SHA256: b78d8eb347f8a6777ebf9fd23b83800abc88cdb3cf1b40706b11b05f1fa06fbc
Pin SHA256: UJd7EKNaKP0I5AOmPVjTsmFeym78buyJ/UWoURYuvQA=

EC 256 bits / SHA384withECDSA
CRL ERROR: IOException occurred
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 cmiweb.ucsd.edu
Fingerprint SHA256: 127884104f90bb33bb8e0d9eef88a2fb8e7dfa48afaa86680625fc2fb0cd445a
Pin SHA256: woNZa79rasOQm7fDN+CvGsJ1wPeY5zUVsA8XU61FOsM=

EC 256 bits / SHA256withECDSA
CRL ERROR: IOException occurred
2 Extra download InCommon ECC Server CA 2
Fingerprint SHA256: b78d8eb347f8a6777ebf9fd23b83800abc88cdb3cf1b40706b11b05f1fa06fbc
Pin SHA256: UJd7EKNaKP0I5AOmPVjTsmFeym78buyJ/UWoURYuvQA=

EC 256 bits / SHA384withECDSA
CRL ERROR: IOException occurred
3 Extra download USERTrust ECC Certification Authority
Fingerprint SHA256: a6cf64dbb4c8d5fd19ce48896068db03b533a8d1336c6256a87d00cbb3def3ea
Pin SHA256: ICGRfpgmOUXIWcQ/HXPLQTkFPEFPoDyjvH7ohhQpjzs=

EC 384 bits / SHA384withRSA
CRL ERROR: IOException occurred
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 No
TLS 1.0 No
SSL 3 No
SSL 2 No


Cipher Suites
# TLS 1.2 (suites in server-preferred order)
TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 (0xc02c)   ECDH x25519 (eq. 3072 bits RSA)   FS 256
TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 (0xcca9)   ECDH x25519 (eq. 3072 bits RSA)   FS 256
TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 (0xc02b)   ECDH x25519 (eq. 3072 bits RSA)   FS 128
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384 (0xc024)   ECDH x25519 (eq. 3072 bits RSA)   FS   WEAK 256
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256 (0xc023)   ECDH x25519 (eq. 3072 bits RSA)   FS   WEAK 128


Handshake Simulation
Android 4.4.2 EC 256 (SHA256)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
Android 5.0.0 EC 256 (SHA256)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Android 6.0 EC 256 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Android 7.0 EC 256 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH x25519  FS
Android 8.0 EC 256 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH x25519  FS
Android 8.1 EC 256 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH x25519  FS
Android 9.0 EC 256 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH x25519  FS
BingPreview Jan 2015 EC 256 (SHA256)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
Chrome 49 / XP SP3 Server sent fatal alert: handshake_failure
Chrome 69 / Win 7  R EC 256 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH x25519  FS
Chrome 70 / Win 10 EC 256 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH x25519  FS
Chrome 80 / Win 10  R EC 256 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH x25519  FS
Firefox 31.3.0 ESR / Win 7 EC 256 (SHA256)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Firefox 47 / Win 7  R EC 256 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256   ECDH secp256r1  FS
Firefox 49 / XP SP3 EC 256 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
Firefox 62 / Win 7  R EC 256 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH x25519  FS
Firefox 73 / Win 10  R EC 256 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH x25519  FS
Googlebot Feb 2018 EC 256 (SHA256)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH x25519  FS
IE 11 / Win 7  R EC 256 (SHA256)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
IE 11 / Win 8.1  R EC 256 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
IE 11 / Win Phone 8.1  R EC 256 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
IE 11 / Win Phone 8.1 Update  R EC 256 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
IE 11 / Win 10  R EC 256 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
Edge 15 / Win 10  R EC 256 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH x25519  FS
Edge 16 / Win 10  R EC 256 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH x25519  FS
Edge 18 / Win 10  R EC 256 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH x25519  FS
Edge 13 / Win Phone 10  R EC 256 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
Java 8u161 EC 256 (SHA256)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
Java 11.0.3 EC 256 (SHA256)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
Java 12.0.1 EC 256 (SHA256)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
OpenSSL 1.0.1l  R EC 256 (SHA256)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
OpenSSL 1.0.2s  R EC 256 (SHA256)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
OpenSSL 1.1.0k  R EC 256 (SHA256)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH x25519  FS
OpenSSL 1.1.1c  R EC 256 (SHA256)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH x25519  FS
Safari 6 / iOS 6.0.1 EC 256 (SHA256)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384   ECDH secp256r1  FS
Safari 7 / iOS 7.1  R EC 256 (SHA256)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384   ECDH secp256r1  FS
Safari 7 / OS X 10.9  R EC 256 (SHA256)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384   ECDH secp256r1  FS
Safari 8 / iOS 8.4  R EC 256 (SHA256)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384   ECDH secp256r1  FS
Safari 8 / OS X 10.10  R EC 256 (SHA256)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384   ECDH secp256r1  FS
Safari 9 / iOS 9  R EC 256 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
Safari 9 / OS X 10.11  R EC 256 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
Safari 10 / iOS 10  R EC 256 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
Safari 10 / OS X 10.12  R EC 256 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
Safari 12.1.2 / MacOS 10.14.6 Beta  R EC 256 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH x25519  FS
Safari 12.1.1 / iOS 12.3.1  R EC 256 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH x25519  FS
Apple ATS 9 / iOS 9  R EC 256 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
Yahoo Slurp Jan 2015 EC 256 (SHA256)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
YandexBot Jan 2015 EC 256 (SHA256)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
# Not simulated clients (Protocol mismatch)
Android 2.3.7   No SNI 2 Protocol mismatch (not simulated)
Android 4.0.4 Protocol mismatch (not simulated)
Android 4.1.1 Protocol mismatch (not simulated)
Android 4.2.2 Protocol mismatch (not simulated)
Android 4.3 Protocol mismatch (not simulated)
Baidu Jan 2015 Protocol mismatch (not simulated)
IE 6 / XP   No FS 1   No SNI 2 Protocol mismatch (not simulated)
IE 7 / Vista Protocol mismatch (not simulated)
IE 8 / XP   No FS 1   No SNI 2 Protocol mismatch (not simulated)
IE 8-10 / Win 7  R Protocol mismatch (not simulated)
IE 10 / Win Phone 8.0 Protocol mismatch (not simulated)
Java 6u45   No SNI 2 Protocol mismatch (not simulated)
Java 7u25 Protocol mismatch (not simulated)
OpenSSL 0.9.8y Protocol mismatch (not simulated)
Safari 5.1.9 / OS X 10.6.8 Protocol mismatch (not simulated)
Safari 6.0.4 / OS X 10.8.4  R 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 Mitigated server-side (more info)  
POODLE (SSLv3) No, SSL 3 not supported (more info)
POODLE (TLS) No (more info)
Zombie POODLE No (more info)   TLS 1.2 : 0xc023
GOLDENDOODLE No (more info)   TLS 1.2 : 0xc023
OpenSSL 0-Length No (more info)   TLS 1.2 : 0xc023
Sleeping POODLE No (more info)   TLS 1.2 : 0xc023
Downgrade attack prevention Unknown (requires support for at least two protocols, excl. SSL2)
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 Yes   http/1.1
NPN No
Session resumption (caching) Yes
Session resumption (tickets) Yes
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 x25519, secp256r1 (server preferred order)
SSL 2 handshake compatibility No


HTTP Requests
1 https://cmi.ucsd.edu/  (HTTP/1.1 200 OK)
1
Date Fri, 21 Nov 2025 21:16:09 GMT
Server Apache/2.4.41 (Ubuntu)
Link <https://cmi.ucsd.edu/>; rel=shortlink
Set-Cookie __wpdm_client=5d75bbef646e4eb7f9dc1c65b735e4c1; path=/; secure; HttpOnly
Vary Accept-Encoding
Connection close
Transfer-Encoding chunked
Content-Type text/html; charset=UTF-8


Miscellaneous
Test date Fri, 21 Nov 2025 21:16:01 UTC
Test duration 52.152 seconds
HTTP status code 200
HTTP server signature Apache/2.4.41 (Ubuntu)
Server hostname cmiweb.ucsd.edu


SSL Report v2.4.1