SSL Server Test: europe-west1-g5-mqtt.clearblade.com (Powered by Qualys SSL Labs)

SSL Report: europe-west1-g5-mqtt.clearblade.com (34.78.5.207)

Assessed on: Mon, 22 Dec 2025 22:03:00 UTC | Clear cache

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Summary

Overall Rating

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 does not support Forward Secrecy with the reference browsers. Grade capped to B. MORE INFO »

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 supports TLS 1.3. MORE INFO »

Certificate #1: RSA 2048 bits (SHA384withRSA)

Server Key and Certificate #1
Subject	*.clearblade.com Fingerprint SHA256: 51fed1689acf55e0abf5202f736912f4f2162dd22308a3fb4d469a4e4730a9b4 Pin SHA256: VOYczFJT9P8te8q9gXsFt/ipw0yYnLGALfzKDFXqmE4=
Common names	*.clearblade.com
Alternative names	*.clearblade.com clearblade.com
Serial Number	05d9dd6cfdd99a4ae0e0bf8a0c1be553
Valid from	Tue, 09 Sep 2025 00:00:00 UTC
Valid until	Sat, 10 Oct 2026 23:59:59 UTC (expires in 9 months and 18 days)
Key	RSA 2048 bits (e 65537)
Weak key (Debian)	No
Issuer	DigiCert G5 TLS RSA4096 SHA384 2021 CA1 AIA: http://cacerts.digicert.com/DigiCertG5TLSRSA4096SHA3842021CA1-1.crt
Signature algorithm	SHA384withRSA
Extended Validation	No
Certificate Transparency	Yes (certificate)
OCSP Must Staple	No
Revocation information	CRL, OCSP CRL: http://crl3.digicert.com/DigiCertG5TLSRSA4096SHA3842021CA1-1.crl OCSP: http://ocsp.digicert.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	3 (5130 bytes)
Chain issues	Contains anchor
#2
Subject	DigiCert G5 TLS RSA4096 SHA384 2021 CA1 Fingerprint SHA256: c6270a150691fbe190d831f5139bdfeecf7b298b4fa0ca17306a69d7e91e7ba2 Pin SHA256: 5R0B4UlPeqmGgtewU9+0QUYDvO9+UNN4YyL8SiHOYVo=
Valid until	Sun, 13 Apr 2031 23:59:59 UTC (expires in 5 years and 3 months)
Key	RSA 4096 bits (e 65537)
Issuer	DigiCert TLS RSA4096 Root G5
Signature algorithm	SHA384withRSA
#3
Subject	DigiCert TLS RSA4096 Root G5 In trust store Fingerprint SHA256: 371a00dc0533b3721a7eeb40e8419e70799d2b0a0f2c1d80693165f7cec4ad75 Pin SHA256: ape1HIIZ6T5d7GS61YBs3rD4NVvkfnVwELcCRW4Bqv0=
Valid until	Sun, 14 Jan 2046 23:59:59 UTC (expires in 20 years)
Key	RSA 4096 bits (e 65537)
Issuer	DigiCert TLS RSA4096 Root G5 Self-signed
Signature algorithm	SHA384withRSA

Certification Paths


Path #1: Trusted
1	Sent by server	.clearblade.com Fingerprint SHA256: 51fed1689acf55e0abf5202f736912f4f2162dd22308a3fb4d469a4e4730a9b4 Pin SHA256: VOYczFJT9P8te8q9gXsFt/ipw0yYnLGALfzKDFXqmE4= RSA 2048 bits (e 65537) / SHA384withRSA CRL ERROR: IOException occurred*
2	Sent by server	DigiCert G5 TLS RSA4096 SHA384 2021 CA1 Fingerprint SHA256: c6270a150691fbe190d831f5139bdfeecf7b298b4fa0ca17306a69d7e91e7ba2 Pin SHA256: 5R0B4UlPeqmGgtewU9+0QUYDvO9+UNN4YyL8SiHOYVo= RSA 4096 bits (e 65537) / SHA384withRSA CRL ERROR: IOException occurred
3	Sent by server In trust store	DigiCert TLS RSA4096 Root G5 Self-signed Fingerprint SHA256: 371a00dc0533b3721a7eeb40e8419e70799d2b0a0f2c1d80693165f7cec4ad75 Pin SHA256: ape1HIIZ6T5d7GS61YBs3rD4NVvkfnVwELcCRW4Bqv0= RSA 4096 bits (e 65537) / SHA384withRSA
Path #1: Trusted
1	Sent by server	.clearblade.com Fingerprint SHA256: 51fed1689acf55e0abf5202f736912f4f2162dd22308a3fb4d469a4e4730a9b4 Pin SHA256: VOYczFJT9P8te8q9gXsFt/ipw0yYnLGALfzKDFXqmE4= RSA 2048 bits (e 65537) / SHA384withRSA CRL ERROR: IOException occurred*
2	Sent by server	DigiCert G5 TLS RSA4096 SHA384 2021 CA1 Fingerprint SHA256: c6270a150691fbe190d831f5139bdfeecf7b298b4fa0ca17306a69d7e91e7ba2 Pin SHA256: 5R0B4UlPeqmGgtewU9+0QUYDvO9+UNN4YyL8SiHOYVo= RSA 4096 bits (e 65537) / SHA384withRSA CRL ERROR: IOException occurred
3	Sent by server In trust store	DigiCert TLS RSA4096 Root G5 Self-signed Fingerprint SHA256: 371a00dc0533b3721a7eeb40e8419e70799d2b0a0f2c1d80693165f7cec4ad75 Pin SHA256: ape1HIIZ6T5d7GS61YBs3rD4NVvkfnVwELcCRW4Bqv0= RSA 4096 bits (e 65537) / SHA384withRSA
Path #1: Trusted
1	Sent by server	.clearblade.com Fingerprint SHA256: 51fed1689acf55e0abf5202f736912f4f2162dd22308a3fb4d469a4e4730a9b4 Pin SHA256: VOYczFJT9P8te8q9gXsFt/ipw0yYnLGALfzKDFXqmE4= RSA 2048 bits (e 65537) / SHA384withRSA CRL ERROR: IOException occurred*
2	Sent by server	DigiCert G5 TLS RSA4096 SHA384 2021 CA1 Fingerprint SHA256: c6270a150691fbe190d831f5139bdfeecf7b298b4fa0ca17306a69d7e91e7ba2 Pin SHA256: 5R0B4UlPeqmGgtewU9+0QUYDvO9+UNN4YyL8SiHOYVo= RSA 4096 bits (e 65537) / SHA384withRSA CRL ERROR: IOException occurred
3	Sent by server In trust store	DigiCert TLS RSA4096 Root G5 Self-signed Fingerprint SHA256: 371a00dc0533b3721a7eeb40e8419e70799d2b0a0f2c1d80693165f7cec4ad75 Pin SHA256: ape1HIIZ6T5d7GS61YBs3rD4NVvkfnVwELcCRW4Bqv0= RSA 4096 bits (e 65537) / SHA384withRSA
Path #1: Trusted
1	Sent by server	.clearblade.com Fingerprint SHA256: 51fed1689acf55e0abf5202f736912f4f2162dd22308a3fb4d469a4e4730a9b4 Pin SHA256: VOYczFJT9P8te8q9gXsFt/ipw0yYnLGALfzKDFXqmE4= RSA 2048 bits (e 65537) / SHA384withRSA CRL ERROR: IOException occurred*
2	Sent by server	DigiCert G5 TLS RSA4096 SHA384 2021 CA1 Fingerprint SHA256: c6270a150691fbe190d831f5139bdfeecf7b298b4fa0ca17306a69d7e91e7ba2 Pin SHA256: 5R0B4UlPeqmGgtewU9+0QUYDvO9+UNN4YyL8SiHOYVo= RSA 4096 bits (e 65537) / SHA384withRSA CRL ERROR: IOException occurred
3	Sent by server In trust store	DigiCert TLS RSA4096 Root G5 Self-signed Fingerprint SHA256: 371a00dc0533b3721a7eeb40e8419e70799d2b0a0f2c1d80693165f7cec4ad75 Pin SHA256: ape1HIIZ6T5d7GS61YBs3rD4NVvkfnVwELcCRW4Bqv0= RSA 4096 bits (e 65537) / SHA384withRSA
Path #1: Trusted
1	Sent by server	.clearblade.com Fingerprint SHA256: 51fed1689acf55e0abf5202f736912f4f2162dd22308a3fb4d469a4e4730a9b4 Pin SHA256: VOYczFJT9P8te8q9gXsFt/ipw0yYnLGALfzKDFXqmE4= RSA 2048 bits (e 65537) / SHA384withRSA CRL ERROR: IOException occurred*
2	Sent by server	DigiCert G5 TLS RSA4096 SHA384 2021 CA1 Fingerprint SHA256: c6270a150691fbe190d831f5139bdfeecf7b298b4fa0ca17306a69d7e91e7ba2 Pin SHA256: 5R0B4UlPeqmGgtewU9+0QUYDvO9+UNN4YyL8SiHOYVo= RSA 4096 bits (e 65537) / SHA384withRSA CRL ERROR: IOException occurred
3	Sent by server In trust store	DigiCert TLS RSA4096 Root G5 Self-signed Fingerprint SHA256: 371a00dc0533b3721a7eeb40e8419e70799d2b0a0f2c1d80693165f7cec4ad75 Pin SHA256: ape1HIIZ6T5d7GS61YBs3rD4NVvkfnVwELcCRW4Bqv0= RSA 4096 bits (e 65537) / SHA384withRSA

Click here to expand

Certificate #2: EC 256 bits (SHA384withECDSA)

Server Key and Certificate #1
Subject	*.clearblade.com Fingerprint SHA256: 7a58d608d2c6ee2a684ad6c295d10019c986861657f4a534f2f1588c0c67bedc Pin SHA256: B6mbGGTx5r3JyFehZyLinIC6XkA3KOm25r60iiK+Ph0=
Common names	*.clearblade.com
Alternative names	*.clearblade.com clearblade.com
Serial Number	0cc5613f61ff1141d095ac8d15c3c376
Valid from	Tue, 09 Sep 2025 00:00:00 UTC
Valid until	Sat, 10 Oct 2026 23:59:59 UTC (expires in 9 months and 18 days)
Key	EC 256 bits
Weak key (Debian)	No
Issuer	DigiCert G5 TLS ECC SHA384 2021 CA1 AIA: http://cacerts.digicert.com/DigiCertG5TLSECCSHA3842021CA1-1.crt
Signature algorithm	SHA384withECDSA
Extended Validation	No
Certificate Transparency	Yes (certificate)
OCSP Must Staple	No
Revocation information	CRL, OCSP CRL: http://crl3.digicert.com/DigiCertG5TLSECCSHA3842021CA1-1.crl OCSP: http://ocsp.digicert.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	3 (2799 bytes)
Chain issues	Contains anchor
#2
Subject	DigiCert G5 TLS ECC SHA384 2021 CA1 Fingerprint SHA256: 97a073957c5812725757672f222690655a1407d71011edfc8b2fadc5128911da Pin SHA256: LsOdqDFw3goo/G8jjeEPxe+JSJ7aFp1RF5Ih4/2ZvFY=
Valid until	Sun, 13 Apr 2031 23:59:59 UTC (expires in 5 years and 3 months)
Key	EC 384 bits
Issuer	DigiCert TLS ECC P384 Root G5
Signature algorithm	SHA384withECDSA
#3
Subject	DigiCert TLS ECC P384 Root G5 In trust store Fingerprint SHA256: 018e13f0772532cf809bd1b17281867283fc48c6e13be9c69812854a490c1b05 Pin SHA256: oC+voZLIy4HLE0FVT5wFtxzKKokLDRKY1oNkfJYe+98=
Valid until	Sun, 14 Jan 2046 23:59:59 UTC (expires in 20 years)
Key	EC 384 bits
Issuer	DigiCert TLS ECC P384 Root G5 Self-signed
Signature algorithm	SHA384withECDSA

Certification Paths


Path #1: Trusted
1	Sent by server	.clearblade.com Fingerprint SHA256: 7a58d608d2c6ee2a684ad6c295d10019c986861657f4a534f2f1588c0c67bedc Pin SHA256: B6mbGGTx5r3JyFehZyLinIC6XkA3KOm25r60iiK+Ph0= EC 256 bits / SHA384withECDSA CRL ERROR: IOException occurred*
2	Sent by server	DigiCert G5 TLS ECC SHA384 2021 CA1 Fingerprint SHA256: 97a073957c5812725757672f222690655a1407d71011edfc8b2fadc5128911da Pin SHA256: LsOdqDFw3goo/G8jjeEPxe+JSJ7aFp1RF5Ih4/2ZvFY= EC 384 bits / SHA384withECDSA CRL ERROR: IOException occurred
3	Sent by server In trust store	DigiCert TLS ECC P384 Root G5 Self-signed Fingerprint SHA256: 018e13f0772532cf809bd1b17281867283fc48c6e13be9c69812854a490c1b05 Pin SHA256: oC+voZLIy4HLE0FVT5wFtxzKKokLDRKY1oNkfJYe+98= EC 384 bits / SHA384withECDSA
Path #1: Trusted
1	Sent by server	.clearblade.com Fingerprint SHA256: 7a58d608d2c6ee2a684ad6c295d10019c986861657f4a534f2f1588c0c67bedc Pin SHA256: B6mbGGTx5r3JyFehZyLinIC6XkA3KOm25r60iiK+Ph0= EC 256 bits / SHA384withECDSA CRL ERROR: IOException occurred*
2	Sent by server	DigiCert G5 TLS ECC SHA384 2021 CA1 Fingerprint SHA256: 97a073957c5812725757672f222690655a1407d71011edfc8b2fadc5128911da Pin SHA256: LsOdqDFw3goo/G8jjeEPxe+JSJ7aFp1RF5Ih4/2ZvFY= EC 384 bits / SHA384withECDSA CRL ERROR: IOException occurred
3	Sent by server In trust store	DigiCert TLS ECC P384 Root G5 Self-signed Fingerprint SHA256: 018e13f0772532cf809bd1b17281867283fc48c6e13be9c69812854a490c1b05 Pin SHA256: oC+voZLIy4HLE0FVT5wFtxzKKokLDRKY1oNkfJYe+98= EC 384 bits / SHA384withECDSA
Path #1: Trusted
1	Sent by server	.clearblade.com Fingerprint SHA256: 7a58d608d2c6ee2a684ad6c295d10019c986861657f4a534f2f1588c0c67bedc Pin SHA256: B6mbGGTx5r3JyFehZyLinIC6XkA3KOm25r60iiK+Ph0= EC 256 bits / SHA384withECDSA CRL ERROR: IOException occurred*
2	Sent by server	DigiCert G5 TLS ECC SHA384 2021 CA1 Fingerprint SHA256: 97a073957c5812725757672f222690655a1407d71011edfc8b2fadc5128911da Pin SHA256: LsOdqDFw3goo/G8jjeEPxe+JSJ7aFp1RF5Ih4/2ZvFY= EC 384 bits / SHA384withECDSA CRL ERROR: IOException occurred
3	Sent by server In trust store	DigiCert TLS ECC P384 Root G5 Self-signed Fingerprint SHA256: 018e13f0772532cf809bd1b17281867283fc48c6e13be9c69812854a490c1b05 Pin SHA256: oC+voZLIy4HLE0FVT5wFtxzKKokLDRKY1oNkfJYe+98= EC 384 bits / SHA384withECDSA
Path #1: Trusted
1	Sent by server	.clearblade.com Fingerprint SHA256: 7a58d608d2c6ee2a684ad6c295d10019c986861657f4a534f2f1588c0c67bedc Pin SHA256: B6mbGGTx5r3JyFehZyLinIC6XkA3KOm25r60iiK+Ph0= EC 256 bits / SHA384withECDSA CRL ERROR: IOException occurred*
2	Sent by server	DigiCert G5 TLS ECC SHA384 2021 CA1 Fingerprint SHA256: 97a073957c5812725757672f222690655a1407d71011edfc8b2fadc5128911da Pin SHA256: LsOdqDFw3goo/G8jjeEPxe+JSJ7aFp1RF5Ih4/2ZvFY= EC 384 bits / SHA384withECDSA CRL ERROR: IOException occurred
3	Sent by server In trust store	DigiCert TLS ECC P384 Root G5 Self-signed Fingerprint SHA256: 018e13f0772532cf809bd1b17281867283fc48c6e13be9c69812854a490c1b05 Pin SHA256: oC+voZLIy4HLE0FVT5wFtxzKKokLDRKY1oNkfJYe+98= EC 384 bits / SHA384withECDSA
Path #1: Trusted
1	Sent by server	.clearblade.com Fingerprint SHA256: 7a58d608d2c6ee2a684ad6c295d10019c986861657f4a534f2f1588c0c67bedc Pin SHA256: B6mbGGTx5r3JyFehZyLinIC6XkA3KOm25r60iiK+Ph0= EC 256 bits / SHA384withECDSA CRL ERROR: IOException occurred*
2	Sent by server	DigiCert G5 TLS ECC SHA384 2021 CA1 Fingerprint SHA256: 97a073957c5812725757672f222690655a1407d71011edfc8b2fadc5128911da Pin SHA256: LsOdqDFw3goo/G8jjeEPxe+JSJ7aFp1RF5Ih4/2ZvFY= EC 384 bits / SHA384withECDSA CRL ERROR: IOException occurred
3	Sent by server In trust store	DigiCert TLS ECC P384 Root G5 Self-signed Fingerprint SHA256: 018e13f0772532cf809bd1b17281867283fc48c6e13be9c69812854a490c1b05 Pin SHA256: oC+voZLIy4HLE0FVT5wFtxzKKokLDRKY1oNkfJYe+98= EC 384 bits / SHA384withECDSA

Click here to expand

Configuration

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

Cipher Suites
# TLS 1.3 (suites in server-preferred order)
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^P
TLS_AES_128_GCM_SHA256 (`0x1301`) ECDH x25519 (eq. 3072 bits RSA) FS	128
# 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^P
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
TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (`0xc030`) ECDH x25519 (eq. 3072 bits RSA) FS	256
TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (`0xc02f`) ECDH x25519 (eq. 3072 bits RSA) FS	128
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 (`0xc028`) ECDH x25519 (eq. 3072 bits RSA) FS 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_GCM_SHA256 (`0x9c`) WEAK	128
TLS_RSA_WITH_AES_256_GCM_SHA384 (`0x9d`) WEAK	256
TLS_RSA_WITH_AES_128_CBC_SHA (`0x2f`) WEAK	128
TLS_RSA_WITH_AES_256_CBC_SHA (`0x35`) WEAK	256
TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 (`0x9e`) DH 2048 bits FS	128
TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 (`0xcca8`) ECDH secp256r1 (eq. 3072 bits RSA) FS	256^P
# 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 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
(P) This server prefers ChaCha20 suites with clients that don't have AES-NI (e.g., Android devices)

Handshake Simulation
Android 2.3.7 No SNI ²	RSA 2048 (SHA384)	TLS 1.0	TLS_RSA_WITH_AES_128_CBC_SHA No FS
Android 4.0.4	RSA 2048 (SHA384)	TLS 1.0	TLS_RSA_WITH_AES_128_CBC_SHA No FS
Android 4.1.1	RSA 2048 (SHA384)	TLS 1.0	TLS_RSA_WITH_AES_128_CBC_SHA No FS
Android 4.2.2	RSA 2048 (SHA384)	TLS 1.0	TLS_RSA_WITH_AES_128_CBC_SHA No FS
Android 4.3	RSA 2048 (SHA384)	TLS 1.0	TLS_RSA_WITH_AES_128_CBC_SHA No FS
Android 4.4.2	EC 256 (SHA384)	TLS 1.2	TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 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	TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 ECDH secp256r1 FS
Android 7.0	EC 256 (SHA384)	TLS 1.2	TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 ECDH x25519 FS
Android 8.0	EC 256 (SHA384)	TLS 1.2	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
Baidu Jan 2015	RSA 2048 (SHA384)	TLS 1.0	TLS_RSA_WITH_AES_128_CBC_SHA No FS
BingPreview Jan 2015	EC 256 (SHA384)	TLS 1.2	TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS
Chrome 49 / XP SP3	RSA 2048 (SHA384)	TLS 1.2	TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 ECDH secp256r1 FS
Chrome 69 / Win 7 R	EC 256 (SHA384)	TLS 1.2	TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 ECDH x25519 FS
Chrome 70 / Win 10	-	TLS 1.3	TLS_AES_256_GCM_SHA384 ECDH x25519 FS
Chrome 80 / Win 10 R	-	TLS 1.3	TLS_AES_256_GCM_SHA384 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	TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 ECDH secp256r1 FS
Firefox 49 / XP SP3	EC 256 (SHA384)	TLS 1.2	TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS
Firefox 62 / Win 7 R	EC 256 (SHA384)	TLS 1.2	TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 ECDH x25519 FS
Firefox 73 / Win 10 R	-	TLS 1.3	TLS_AES_256_GCM_SHA384 ECDH x25519 FS
Googlebot Feb 2018	EC 256 (SHA384)	TLS 1.2	TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 ECDH x25519 FS
IE 7 / Vista	RSA 2048 (SHA384)	TLS 1.0	TLS_RSA_WITH_AES_128_CBC_SHA No FS
IE 8 / XP No FS ¹ No SNI ²	Server sent fatal alert: handshake_failure
IE 8-10 / Win 7 R	RSA 2048 (SHA384)	TLS 1.0	TLS_RSA_WITH_AES_128_CBC_SHA No 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	RSA 2048 (SHA384)	TLS 1.0	TLS_RSA_WITH_AES_128_CBC_SHA No FS
IE 11 / Win Phone 8.1 R	EC 256 (SHA384)	TLS 1.2	TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 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 x25519 FS
Edge 16 / Win 10 R	EC 256 (SHA384)	TLS 1.2	TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 ECDH x25519 FS
Edge 18 / Win 10 R	EC 256 (SHA384)	TLS 1.2	TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 ECDH x25519 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	RSA 2048 (SHA384)	TLS 1.0	TLS_RSA_WITH_AES_128_CBC_SHA No FS
Java 7u25	RSA 2048 (SHA384)	TLS 1.0	TLS_RSA_WITH_AES_128_CBC_SHA No FS
Java 8u161	EC 256 (SHA384)	TLS 1.2	TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS
Java 11.0.3	-	TLS 1.3	TLS_AES_256_GCM_SHA384 ECDH secp256r1 FS
Java 12.0.1	-	TLS 1.3	TLS_AES_256_GCM_SHA384 ECDH secp256r1 FS
OpenSSL 0.9.8y	RSA 2048 (SHA384)	TLS 1.0	TLS_RSA_WITH_AES_128_CBC_SHA No FS
OpenSSL 1.0.1l R	EC 256 (SHA384)	TLS 1.2	TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 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 x25519 FS
OpenSSL 1.1.1c R	-	TLS 1.3	TLS_AES_256_GCM_SHA384 ECDH x25519 FS
Safari 5.1.9 / OS X 10.6.8	RSA 2048 (SHA384)	TLS 1.0	TLS_RSA_WITH_AES_128_CBC_SHA No 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	RSA 2048 (SHA384)	TLS 1.0	TLS_RSA_WITH_AES_128_CBC_SHA No 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	-	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	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 secp256r1 FS
YandexBot Jan 2015	EC 256 (SHA384)	TLS 1.2	TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 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 : `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	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	With some browsers (more info)
ALPN	No
NPN	No
Session resumption (caching)	No (IDs assigned but not accepted)
Session resumption (tickets)	Yes
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
DH public server param (Ys) reuse	No
ECDH public server param reuse	No
Supported Named Groups	x25519, secp256r1 (server preferred order)
SSL 2 handshake compatibility	Yes
0-RTT enabled	No

HTTP Requests

1 https://europe-west1-g5-mqtt.clearblade.com/ (Request failed)

Miscellaneous
Test date	Mon, 22 Dec 2025 22:00:39 UTC
Test duration	140.972 seconds
HTTP status code	Request failed
HTTP server signature	Unknown
Server hostname	207.5.78.34.bc.googleusercontent.com

SSL Report v2.4.1

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