SSL Report: isb.ac.th (104.17.69.73)
Assessed on:  Mon, 25 Aug 2025 19:33:24 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
A+
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 site works only in browsers with SNI support.
This server supports TLS 1.3.  MORE INFO »
HTTP Strict Transport Security (HSTS) with long duration deployed on this server.  MORE INFO »
Certificate #1: RSA 2048 bits (SHA256withRSA)
Server Key and Certificate #1
Subject isb.ac.th
Fingerprint SHA256: 7951230c767cf12ede13709cdac023b4c927c47693439fc9c6c2e5b53fb5a925
Pin SHA256: JQrMuYuAkDgvQfg2rohA4SpwAWyKcbbzK9lxCyY2Deo=
Common names isb.ac.th
Alternative names isb.ac.th
Serial Number 06cfa082c1b3ed11021b362292a2baf60cd2
Valid from Wed, 02 Jul 2025 08:00:51 UTC
Valid until Tue, 30 Sep 2025 08:00:50 UTC (expires in 1 month and 4 days)
Key RSA 2048 bits (e 65537)
Weak key (Debian) No
Issuer R10
AIA: http://r10.i.lencr.org/
Signature algorithm SHA256withRSA
Extended Validation No
Certificate Transparency Yes (certificate)
OCSP Must Staple No
Revocation information CRL
CRL: http://r10.c.lencr.org/83.crl
Revocation status Good (not revoked)
DNS CAA No (more info)
Trusted Yes
Mozilla  Apple  Android  Java  Windows 


Additional Certificates (if supplied)
Certificates provided 2 (2555 bytes)
Chain issues None
#2
Subject R10
Fingerprint SHA256: 9d7c3f1aa6ad2b2ec0d5cf1e246f8d9ae6cbc9fd0755ad37bb974b1f2fb603f3
Pin SHA256: K7rZOrXHknnsEhUH8nLL4MZkejquUuIvOIr6tCa0rbo=
Valid until Fri, 12 Mar 2027 23:59:59 UTC (expires in 1 year and 6 months)
Key RSA 2048 bits (e 65537)
Issuer ISRG Root X1
Signature algorithm SHA256withRSA


Certification Paths
Path #1: Trusted
1 Sent by server isb.ac.th
Fingerprint SHA256: 7951230c767cf12ede13709cdac023b4c927c47693439fc9c6c2e5b53fb5a925
Pin SHA256: JQrMuYuAkDgvQfg2rohA4SpwAWyKcbbzK9lxCyY2Deo=

RSA 2048 bits (e 65537) / SHA256withRSA
2 Sent by server R10
Fingerprint SHA256: 9d7c3f1aa6ad2b2ec0d5cf1e246f8d9ae6cbc9fd0755ad37bb974b1f2fb603f3
Pin SHA256: K7rZOrXHknnsEhUH8nLL4MZkejquUuIvOIr6tCa0rbo=

RSA 2048 bits (e 65537) / SHA256withRSA
3 In trust store ISRG Root X1   Self-signed
Fingerprint SHA256: 96bcec06264976f37460779acf28c5a7cfe8a3c0aae11a8ffcee05c0bddf08c6
Pin SHA256: C5+lpZ7tcVwmwQIMcRtPbsQtWLABXhQzejna0wHFr8M=

RSA 4096 bits (e 65537) / SHA256withRSA
Path #1: Trusted
1 Sent by server isb.ac.th
Fingerprint SHA256: 7951230c767cf12ede13709cdac023b4c927c47693439fc9c6c2e5b53fb5a925
Pin SHA256: JQrMuYuAkDgvQfg2rohA4SpwAWyKcbbzK9lxCyY2Deo=

RSA 2048 bits (e 65537) / SHA256withRSA
2 Sent by server R10
Fingerprint SHA256: 9d7c3f1aa6ad2b2ec0d5cf1e246f8d9ae6cbc9fd0755ad37bb974b1f2fb603f3
Pin SHA256: K7rZOrXHknnsEhUH8nLL4MZkejquUuIvOIr6tCa0rbo=

RSA 2048 bits (e 65537) / SHA256withRSA
3 In trust store ISRG Root X1   Self-signed
Fingerprint SHA256: 96bcec06264976f37460779acf28c5a7cfe8a3c0aae11a8ffcee05c0bddf08c6
Pin SHA256: C5+lpZ7tcVwmwQIMcRtPbsQtWLABXhQzejna0wHFr8M=

RSA 4096 bits (e 65537) / SHA256withRSA
Path #1: Trusted
1 Sent by server isb.ac.th
Fingerprint SHA256: 7951230c767cf12ede13709cdac023b4c927c47693439fc9c6c2e5b53fb5a925
Pin SHA256: JQrMuYuAkDgvQfg2rohA4SpwAWyKcbbzK9lxCyY2Deo=

RSA 2048 bits (e 65537) / SHA256withRSA
2 Sent by server R10
Fingerprint SHA256: 9d7c3f1aa6ad2b2ec0d5cf1e246f8d9ae6cbc9fd0755ad37bb974b1f2fb603f3
Pin SHA256: K7rZOrXHknnsEhUH8nLL4MZkejquUuIvOIr6tCa0rbo=

RSA 2048 bits (e 65537) / SHA256withRSA
3 In trust store ISRG Root X1   Self-signed
Fingerprint SHA256: 96bcec06264976f37460779acf28c5a7cfe8a3c0aae11a8ffcee05c0bddf08c6
Pin SHA256: C5+lpZ7tcVwmwQIMcRtPbsQtWLABXhQzejna0wHFr8M=

RSA 4096 bits (e 65537) / SHA256withRSA
Path #1: Trusted
1 Sent by server isb.ac.th
Fingerprint SHA256: 7951230c767cf12ede13709cdac023b4c927c47693439fc9c6c2e5b53fb5a925
Pin SHA256: JQrMuYuAkDgvQfg2rohA4SpwAWyKcbbzK9lxCyY2Deo=

RSA 2048 bits (e 65537) / SHA256withRSA
2 Sent by server R10
Fingerprint SHA256: 9d7c3f1aa6ad2b2ec0d5cf1e246f8d9ae6cbc9fd0755ad37bb974b1f2fb603f3
Pin SHA256: K7rZOrXHknnsEhUH8nLL4MZkejquUuIvOIr6tCa0rbo=

RSA 2048 bits (e 65537) / SHA256withRSA
3 In trust store ISRG Root X1   Self-signed
Fingerprint SHA256: 96bcec06264976f37460779acf28c5a7cfe8a3c0aae11a8ffcee05c0bddf08c6
Pin SHA256: C5+lpZ7tcVwmwQIMcRtPbsQtWLABXhQzejna0wHFr8M=

RSA 4096 bits (e 65537) / SHA256withRSA
Path #1: Trusted
1 Sent by server isb.ac.th
Fingerprint SHA256: 7951230c767cf12ede13709cdac023b4c927c47693439fc9c6c2e5b53fb5a925
Pin SHA256: JQrMuYuAkDgvQfg2rohA4SpwAWyKcbbzK9lxCyY2Deo=

RSA 2048 bits (e 65537) / SHA256withRSA
2 Sent by server R10
Fingerprint SHA256: 9d7c3f1aa6ad2b2ec0d5cf1e246f8d9ae6cbc9fd0755ad37bb974b1f2fb603f3
Pin SHA256: K7rZOrXHknnsEhUH8nLL4MZkejquUuIvOIr6tCa0rbo=

RSA 2048 bits (e 65537) / SHA256withRSA
3 In trust store ISRG Root X1   Self-signed
Fingerprint SHA256: 96bcec06264976f37460779acf28c5a7cfe8a3c0aae11a8ffcee05c0bddf08c6
Pin SHA256: C5+lpZ7tcVwmwQIMcRtPbsQtWLABXhQzejna0wHFr8M=

RSA 4096 bits (e 65537) / SHA256withRSA

Click here to expand

Certificate #2: EC 256 bits (SHA384withECDSA)
Server Key and Certificate #1
Subject isb.ac.th
Fingerprint SHA256: 2280fa65f88beabef325ec7e6b26fab213e217cb807784aa8bb76ea985be8736
Pin SHA256: 1UtZMXwmfp1BEZoD4T13+X0C/Wa8yLvQGVWB0ivZfR8=
Common names isb.ac.th
Alternative names isb.ac.th
Serial Number 0540ddd43e22ba76bc4d830e8e97708fe4f4
Valid from Wed, 02 Jul 2025 08:00:59 UTC
Valid until Tue, 30 Sep 2025 08:00:58 UTC (expires in 1 month and 4 days)
Key EC 256 bits
Weak key (Debian) No
Issuer E6
AIA: http://e6.i.lencr.org/
Signature algorithm SHA384withECDSA
Extended Validation No
Certificate Transparency Yes (certificate)
OCSP Must Staple No
Revocation information CRL
CRL: http://e6.c.lencr.org/117.crl
Revocation status Good (not revoked)
DNS CAA No (more info)
Trusted Yes
Mozilla  Apple  Android  Java  Windows 


Additional Certificates (if supplied)
Certificates provided 2 (2015 bytes)
Chain issues None
#2
Subject E6
Fingerprint SHA256: 76e9e288aafc0e37f4390cbf946aad997d5c1c901b3ce513d3d8fadbabe2ab85
Pin SHA256: 0Bbh/jEZSKymTy3kTOhsmlHKBB32EDu1KojrP3YfV9c=
Valid until Fri, 12 Mar 2027 23:59:59 UTC (expires in 1 year and 6 months)
Key EC 384 bits
Issuer ISRG Root X1
Signature algorithm SHA256withRSA


Certification Paths
Path #1: Trusted
1 Sent by server isb.ac.th
Fingerprint SHA256: 2280fa65f88beabef325ec7e6b26fab213e217cb807784aa8bb76ea985be8736
Pin SHA256: 1UtZMXwmfp1BEZoD4T13+X0C/Wa8yLvQGVWB0ivZfR8=

EC 256 bits / SHA384withECDSA
2 Sent by server E6
Fingerprint SHA256: 76e9e288aafc0e37f4390cbf946aad997d5c1c901b3ce513d3d8fadbabe2ab85
Pin SHA256: 0Bbh/jEZSKymTy3kTOhsmlHKBB32EDu1KojrP3YfV9c=

EC 384 bits / SHA256withRSA
3 In trust store ISRG Root X1   Self-signed
Fingerprint SHA256: 96bcec06264976f37460779acf28c5a7cfe8a3c0aae11a8ffcee05c0bddf08c6
Pin SHA256: C5+lpZ7tcVwmwQIMcRtPbsQtWLABXhQzejna0wHFr8M=

RSA 4096 bits (e 65537) / SHA256withRSA
Path #1: Trusted
1 Sent by server isb.ac.th
Fingerprint SHA256: 2280fa65f88beabef325ec7e6b26fab213e217cb807784aa8bb76ea985be8736
Pin SHA256: 1UtZMXwmfp1BEZoD4T13+X0C/Wa8yLvQGVWB0ivZfR8=

EC 256 bits / SHA384withECDSA
2 Sent by server E6
Fingerprint SHA256: 76e9e288aafc0e37f4390cbf946aad997d5c1c901b3ce513d3d8fadbabe2ab85
Pin SHA256: 0Bbh/jEZSKymTy3kTOhsmlHKBB32EDu1KojrP3YfV9c=

EC 384 bits / SHA256withRSA
3 In trust store ISRG Root X1   Self-signed
Fingerprint SHA256: 96bcec06264976f37460779acf28c5a7cfe8a3c0aae11a8ffcee05c0bddf08c6
Pin SHA256: C5+lpZ7tcVwmwQIMcRtPbsQtWLABXhQzejna0wHFr8M=

RSA 4096 bits (e 65537) / SHA256withRSA
Path #1: Trusted
1 Sent by server isb.ac.th
Fingerprint SHA256: 2280fa65f88beabef325ec7e6b26fab213e217cb807784aa8bb76ea985be8736
Pin SHA256: 1UtZMXwmfp1BEZoD4T13+X0C/Wa8yLvQGVWB0ivZfR8=

EC 256 bits / SHA384withECDSA
2 Sent by server E6
Fingerprint SHA256: 76e9e288aafc0e37f4390cbf946aad997d5c1c901b3ce513d3d8fadbabe2ab85
Pin SHA256: 0Bbh/jEZSKymTy3kTOhsmlHKBB32EDu1KojrP3YfV9c=

EC 384 bits / SHA256withRSA
3 In trust store ISRG Root X1   Self-signed
Fingerprint SHA256: 96bcec06264976f37460779acf28c5a7cfe8a3c0aae11a8ffcee05c0bddf08c6
Pin SHA256: C5+lpZ7tcVwmwQIMcRtPbsQtWLABXhQzejna0wHFr8M=

RSA 4096 bits (e 65537) / SHA256withRSA
Path #1: Trusted
1 Sent by server isb.ac.th
Fingerprint SHA256: 2280fa65f88beabef325ec7e6b26fab213e217cb807784aa8bb76ea985be8736
Pin SHA256: 1UtZMXwmfp1BEZoD4T13+X0C/Wa8yLvQGVWB0ivZfR8=

EC 256 bits / SHA384withECDSA
2 Sent by server E6
Fingerprint SHA256: 76e9e288aafc0e37f4390cbf946aad997d5c1c901b3ce513d3d8fadbabe2ab85
Pin SHA256: 0Bbh/jEZSKymTy3kTOhsmlHKBB32EDu1KojrP3YfV9c=

EC 384 bits / SHA256withRSA
3 In trust store ISRG Root X1   Self-signed
Fingerprint SHA256: 96bcec06264976f37460779acf28c5a7cfe8a3c0aae11a8ffcee05c0bddf08c6
Pin SHA256: C5+lpZ7tcVwmwQIMcRtPbsQtWLABXhQzejna0wHFr8M=

RSA 4096 bits (e 65537) / SHA256withRSA
Path #1: Trusted
1 Sent by server isb.ac.th
Fingerprint SHA256: 2280fa65f88beabef325ec7e6b26fab213e217cb807784aa8bb76ea985be8736
Pin SHA256: 1UtZMXwmfp1BEZoD4T13+X0C/Wa8yLvQGVWB0ivZfR8=

EC 256 bits / SHA384withECDSA
2 Sent by server E6
Fingerprint SHA256: 76e9e288aafc0e37f4390cbf946aad997d5c1c901b3ce513d3d8fadbabe2ab85
Pin SHA256: 0Bbh/jEZSKymTy3kTOhsmlHKBB32EDu1KojrP3YfV9c=

EC 384 bits / SHA256withRSA
3 In trust store ISRG Root X1   Self-signed
Fingerprint SHA256: 96bcec06264976f37460779acf28c5a7cfe8a3c0aae11a8ffcee05c0bddf08c6
Pin SHA256: C5+lpZ7tcVwmwQIMcRtPbsQtWLABXhQzejna0wHFr8M=

RSA 4096 bits (e 65537) / SHA256withRSA

Click here to expand

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


Cipher Suites
# TLS 1.3 (server has no preference)
TLS_AES_128_GCM_SHA256 (0x1301)   ECDH x25519 (eq. 3072 bits RSA)   FS 128
TLS_AES_256_GCM_SHA384 (0x1302)   ECDH x25519 (eq. 3072 bits RSA)   FS 256
TLS_CHACHA20_POLY1305_SHA256 (0x1303)   ECDH x25519 (eq. 3072 bits RSA)   FS 256
# TLS 1.2 (suites in server-preferred order)
TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 (0xc02b)   ECDH x25519 (eq. 3072 bits RSA)   FS 128
TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 (0xcca9)   ECDH x25519 (eq. 3072 bits RSA)   FS 256P
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA (0xc009)   ECDH x25519 (eq. 3072 bits RSA)   FS   WEAK 128
TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 (0xc02c)   ECDH x25519 (eq. 3072 bits RSA)   FS 256
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA (0xc00a)   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
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384 (0xc024)   ECDH x25519 (eq. 3072 bits RSA)   FS   WEAK 256
TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (0xc02f)   ECDH x25519 (eq. 3072 bits RSA)   FS 128
TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 (0xcca8)   ECDH x25519 (eq. 3072 bits RSA)   FS 256P
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA (0xc013)   ECDH x25519 (eq. 3072 bits RSA)   FS   WEAK 128
TLS_RSA_WITH_AES_128_GCM_SHA256 (0x9c)   WEAK 128
TLS_RSA_WITH_AES_128_CBC_SHA (0x2f)   WEAK 128
TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (0xc030)   ECDH x25519 (eq. 3072 bits RSA)   FS 256
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA (0xc014)   ECDH x25519 (eq. 3072 bits RSA)   FS   WEAK 256
TLS_RSA_WITH_AES_256_GCM_SHA384 (0x9d)   WEAK 256
TLS_RSA_WITH_AES_256_CBC_SHA (0x35)   WEAK 256
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 (0xc027)   ECDH x25519 (eq. 3072 bits RSA)   FS   WEAK 128
TLS_RSA_WITH_AES_128_CBC_SHA256 (0x3c)   WEAK 128
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 (0xc028)   ECDH x25519 (eq. 3072 bits RSA)   FS   WEAK 256
TLS_RSA_WITH_AES_256_CBC_SHA256 (0x3d)   WEAK 256
(P) This server prefers ChaCha20 suites with clients that don't have AES-NI (e.g., Android devices)


Handshake Simulation
Android 4.4.2 EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Android 5.0.0 EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Android 6.0 EC 256 (SHA384)   TLS 1.2 > http/1.1   TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Android 7.0 EC 256 (SHA384)   TLS 1.2 > h2   TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256   ECDH x25519  FS
Android 8.0 EC 256 (SHA384)   TLS 1.2 > h2   TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256   ECDH x25519  FS
Android 8.1 -   TLS 1.3 TLS_CHACHA20_POLY1305_SHA256   ECDH x25519  FS
Android 9.0 -   TLS 1.3 TLS_CHACHA20_POLY1305_SHA256   ECDH x25519  FS
BingPreview Jan 2015 EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Chrome 49 / XP SP3 RSA 2048 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Chrome 69 / Win 7  R EC 256 (SHA384)   TLS 1.2 > h2   TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH x25519  FS
Chrome 70 / Win 10 -   TLS 1.3 TLS_AES_128_GCM_SHA256   ECDH x25519  FS
Chrome 80 / Win 10  R -   TLS 1.3 TLS_AES_128_GCM_SHA256   ECDH x25519  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 > h2   TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Firefox 49 / XP SP3 EC 256 (SHA384)   TLS 1.2 > h2   TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Firefox 62 / Win 7  R EC 256 (SHA384)   TLS 1.2 > h2   TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH x25519  FS
Firefox 73 / Win 10  R -   TLS 1.3 TLS_AES_128_GCM_SHA256   ECDH x25519  FS
Googlebot Feb 2018 EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH x25519  FS
IE 11 / Win 7  R EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
IE 11 / Win 8.1  R EC 256 (SHA384)   TLS 1.2 > http/1.1   TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
IE 11 / Win Phone 8.1  R EC 256 (SHA384)   TLS 1.2 > http/1.1   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 > http/1.1   TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
IE 11 / Win 10  R EC 256 (SHA384)   TLS 1.2 > h2   TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Edge 15 / Win 10  R EC 256 (SHA384)   TLS 1.2 > h2   TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH x25519  FS
Edge 16 / Win 10  R EC 256 (SHA384)   TLS 1.2 > h2   TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH x25519  FS
Edge 18 / Win 10  R EC 256 (SHA384)   TLS 1.2 > h2   TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH x25519  FS
Edge 13 / Win Phone 10  R EC 256 (SHA384)   TLS 1.2 > h2   TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Java 8u161 EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Java 11.0.3 -   TLS 1.3 TLS_AES_128_GCM_SHA256   ECDH secp256r1  FS
Java 12.0.1 -   TLS 1.3 TLS_AES_128_GCM_SHA256   ECDH secp256r1  FS
OpenSSL 1.0.1l  R EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
OpenSSL 1.0.2s  R EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
OpenSSL 1.1.0k  R EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256   ECDH x25519  FS
OpenSSL 1.1.1c  R -   TLS 1.3 TLS_AES_256_GCM_SHA384   ECDH x25519  FS
Safari 6 / iOS 6.0.1 EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA   ECDH secp256r1  FS
Safari 7 / iOS 7.1  R EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA   ECDH secp256r1  FS
Safari 7 / OS X 10.9  R EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA   ECDH secp256r1  FS
Safari 8 / iOS 8.4  R EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA   ECDH secp256r1  FS
Safari 8 / OS X 10.10  R EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA   ECDH secp256r1  FS
Safari 9 / iOS 9  R EC 256 (SHA384)   TLS 1.2 > h2   TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Safari 9 / OS X 10.11  R EC 256 (SHA384)   TLS 1.2 > h2   TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Safari 10 / iOS 10  R EC 256 (SHA384)   TLS 1.2 > h2   TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Safari 10 / OS X 10.12  R EC 256 (SHA384)   TLS 1.2 > h2   TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Safari 12.1.2 / MacOS 10.14.6 Beta  R -   TLS 1.3 TLS_CHACHA20_POLY1305_SHA256   ECDH x25519  FS
Safari 12.1.1 / iOS 12.3.1  R -   TLS 1.3 TLS_CHACHA20_POLY1305_SHA256   ECDH x25519  FS
Apple ATS 9 / iOS 9  R EC 256 (SHA384)   TLS 1.2 > h2   TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Yahoo Slurp Jan 2015 EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
YandexBot Jan 2015 EC 256 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   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 : 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 Yes, TLS_FALLBACK_SCSV 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 Yes   h2 http/1.1
NPN Yes   h2 http/1.1
Session resumption (caching) No (IDs assigned but not accepted)
Session resumption (tickets) Yes
OCSP stapling No
Strict Transport Security (HSTS) Yes
max-age=31536000
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, secp384r1, secp521r1 (server preferred order)
SSL 2 handshake compatibility No
0-RTT enabled No


HTTP Requests
1 https://isb.ac.th/  (HTTP/1.1 301 Moved Permanently)
1
Date Mon, 25 Aug 2025 19:31:59 GMT
Content-Length 0
Connection close
CF-RAY 974d83493ae2f7ab-LAX
Location https://www.isb.ac.th/
Strict-Transport-Security max-age=31536000
Set-Cookie __cfruid=9977d8ffb328990c472ab762b7deb068ddbb31e2-1756150319; path=/; domain=.isb.ac.th; HttpOnly; Secure; SameSite=None
Server cloudflare
alt-svc h3=":443"; ma=86400


Miscellaneous
Test date Mon, 25 Aug 2025 19:31:53 UTC
Test duration 91.127 seconds
HTTP status code 301
HTTP forwarding https://www.isb.ac.th
HTTP server signature cloudflare
Server hostname -


SSL Report v2.4.1