SSL Report: ca.kontur.ru (46.17.203.131)
Assessed on:  Fri, 22 Aug 2025 09:44:23 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 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 *.kontur.ru
Fingerprint SHA256: 6bb993e342c29a331f5342938afab84890f99cb2d4958cc5b858776c785d38d0
Pin SHA256: NW+XZWv8XZ+qRzaK9hXqelZfVe8nxPCS4SCmzDYnk6c=
Common names *.kontur.ru
Alternative names *.kontur.ru kontur.ru
Serial Number 384992c4e69cb23ea3c4d9bd
Valid from Mon, 30 Sep 2024 13:57:19 UTC
Valid until Sat, 01 Nov 2025 13:57:18 UTC (expires in 2 months and 9 days)
Key RSA 2048 bits (e 65537)
Weak key (Debian) No
Issuer GlobalSign GCC R3 DV TLS CA 2020
AIA: http://secure.globalsign.com/cacert/gsgccr3dvtlsca2020.crt
Signature algorithm SHA256withRSA
Extended Validation No
Certificate Transparency Yes (certificate)
OCSP Must Staple No
Revocation information CRL, OCSP
CRL: http://crl.globalsign.com/gsgccr3dvtlsca2020.crl
OCSP: http://ocsp.globalsign.com/gsgccr3dvtlsca2020
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 2 (2816 bytes)
Chain issues None
#2
Subject GlobalSign GCC R3 DV TLS CA 2020
Fingerprint SHA256: 762538439509c411c437d3c567563e1378671281fc4a1464add031870843676e
Pin SHA256: Sc7wL4FfOw8ued5w3JOSzu5MzB471PfqdyN4hnMYbX4=
Valid until Sun, 18 Mar 2029 00:00:00 UTC (expires in 3 years and 6 months)
Key RSA 2048 bits (e 65537)
Issuer GlobalSign
Signature algorithm SHA256withRSA


Certification Paths
Path #1: Trusted
1 Sent by server *.kontur.ru
Fingerprint SHA256: 6bb993e342c29a331f5342938afab84890f99cb2d4958cc5b858776c785d38d0
Pin SHA256: NW+XZWv8XZ+qRzaK9hXqelZfVe8nxPCS4SCmzDYnk6c=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
2 Sent by server GlobalSign GCC R3 DV TLS CA 2020
Fingerprint SHA256: 762538439509c411c437d3c567563e1378671281fc4a1464add031870843676e
Pin SHA256: Sc7wL4FfOw8ued5w3JOSzu5MzB471PfqdyN4hnMYbX4=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
3 In trust store GlobalSign   Self-signed
Fingerprint SHA256: cbb522d7b7f127ad6a0113865bdf1cd4102e7d0759af635a7cf4720dc963c53b
Pin SHA256: cGuxAXyFXFkWm61cF4HPWX8S0srS9j0aSqN0k4AP+4A=

RSA 2048 bits (e 65537) / SHA256withRSA
Path #1: Trusted
1 Sent by server *.kontur.ru
Fingerprint SHA256: 6bb993e342c29a331f5342938afab84890f99cb2d4958cc5b858776c785d38d0
Pin SHA256: NW+XZWv8XZ+qRzaK9hXqelZfVe8nxPCS4SCmzDYnk6c=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
2 Sent by server GlobalSign GCC R3 DV TLS CA 2020
Fingerprint SHA256: 762538439509c411c437d3c567563e1378671281fc4a1464add031870843676e
Pin SHA256: Sc7wL4FfOw8ued5w3JOSzu5MzB471PfqdyN4hnMYbX4=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
3 In trust store GlobalSign   Self-signed
Fingerprint SHA256: cbb522d7b7f127ad6a0113865bdf1cd4102e7d0759af635a7cf4720dc963c53b
Pin SHA256: cGuxAXyFXFkWm61cF4HPWX8S0srS9j0aSqN0k4AP+4A=

RSA 2048 bits (e 65537) / SHA256withRSA
Path #1: Trusted
1 Sent by server *.kontur.ru
Fingerprint SHA256: 6bb993e342c29a331f5342938afab84890f99cb2d4958cc5b858776c785d38d0
Pin SHA256: NW+XZWv8XZ+qRzaK9hXqelZfVe8nxPCS4SCmzDYnk6c=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
2 Sent by server GlobalSign GCC R3 DV TLS CA 2020
Fingerprint SHA256: 762538439509c411c437d3c567563e1378671281fc4a1464add031870843676e
Pin SHA256: Sc7wL4FfOw8ued5w3JOSzu5MzB471PfqdyN4hnMYbX4=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
3 In trust store GlobalSign   Self-signed
Fingerprint SHA256: cbb522d7b7f127ad6a0113865bdf1cd4102e7d0759af635a7cf4720dc963c53b
Pin SHA256: cGuxAXyFXFkWm61cF4HPWX8S0srS9j0aSqN0k4AP+4A=

RSA 2048 bits (e 65537) / SHA256withRSA
Path #1: Trusted
1 Sent by server *.kontur.ru
Fingerprint SHA256: 6bb993e342c29a331f5342938afab84890f99cb2d4958cc5b858776c785d38d0
Pin SHA256: NW+XZWv8XZ+qRzaK9hXqelZfVe8nxPCS4SCmzDYnk6c=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
2 Sent by server GlobalSign GCC R3 DV TLS CA 2020
Fingerprint SHA256: 762538439509c411c437d3c567563e1378671281fc4a1464add031870843676e
Pin SHA256: Sc7wL4FfOw8ued5w3JOSzu5MzB471PfqdyN4hnMYbX4=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
3 In trust store GlobalSign   Self-signed
Fingerprint SHA256: cbb522d7b7f127ad6a0113865bdf1cd4102e7d0759af635a7cf4720dc963c53b
Pin SHA256: cGuxAXyFXFkWm61cF4HPWX8S0srS9j0aSqN0k4AP+4A=

RSA 2048 bits (e 65537) / SHA256withRSA
Path #1: Trusted
1 Sent by server *.kontur.ru
Fingerprint SHA256: 6bb993e342c29a331f5342938afab84890f99cb2d4958cc5b858776c785d38d0
Pin SHA256: NW+XZWv8XZ+qRzaK9hXqelZfVe8nxPCS4SCmzDYnk6c=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
2 Sent by server GlobalSign GCC R3 DV TLS CA 2020
Fingerprint SHA256: 762538439509c411c437d3c567563e1378671281fc4a1464add031870843676e
Pin SHA256: Sc7wL4FfOw8ued5w3JOSzu5MzB471PfqdyN4hnMYbX4=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
3 In trust store GlobalSign   Self-signed
Fingerprint SHA256: cbb522d7b7f127ad6a0113865bdf1cd4102e7d0759af635a7cf4720dc963c53b
Pin SHA256: cGuxAXyFXFkWm61cF4HPWX8S0srS9j0aSqN0k4AP+4A=

RSA 2048 bits (e 65537) / SHA256withRSA

Click here to expand

Certificate #2: RSA 2048 bits (SHA256withRSA)
Server Key and Certificate #1
Subject ca.kontur.ru
Fingerprint SHA256: e1cc2e6616878f1b21215e5fbebb1fd588b175d23134819833fe088769b9b6b2
Pin SHA256: 5wpzMa1TXy2c80ASWyXQsQdjnhLdjmX7MIwfHecH4Ss=
Common names ca.kontur.ru
Alternative names astrahan.ca.kontur.ru belgorod.ca.kontur.ru blagoveschensk.ca.kontur.ru bryansk.ca.kontur.ru ca.kontur.ru habarovsk.ca.kontur.ru irkutsk.ca.kontur.ru ivanovo.ca.kontur.ru komsomolsk.ca.kontur.ru kostroma.ca.kontur.ru kursk.ca.kontur.ru lipetsk.ca.kontur.ru murmansk.ca.kontur.ru oryol.ca.kontur.ru petrozavodsk.ca.kontur.ru ryazan.ca.kontur.ru sertum-pro.ru sertum.ru smolensk.ca.kontur.ru tambov.ca.kontur.ru tolyatti.ca.kontur.ru tula.ca.kontur.ru tver.ca.kontur.ru vladimir.ca.kontur.ru vladivostok.ca.kontur.ru www.sertum-pro.ru www.sertum.ru yakutsk.ca.kontur.ru
Serial Number 06286be5684d3abb3b129b443684d226a1e5
Valid from Mon, 30 Jun 2025 20:11:30 UTC
Valid until Sun, 28 Sep 2025 20:11:29 UTC (expires in 1 month and 6 days)
Key RSA 2048 bits (e 65537)
Weak key (Debian) No
Issuer R11
AIA: http://r11.i.lencr.org/
Signature algorithm SHA256withRSA
Extended Validation No
Certificate Transparency Yes (certificate)
OCSP Must Staple No
Revocation information CRL
CRL: http://r11.c.lencr.org/102.crl
Revocation status Validation error
CRL ERROR: IOException occurred
DNS CAA No (more info)
Trusted Yes
Mozilla  Apple  Android  Java  Windows 


Additional Certificates (if supplied)
Certificates provided 2 (3151 bytes)
Chain issues None
#2
Subject R11
Fingerprint SHA256: 591e9ce6c863d3a079e9fabe1478c7339a26b21269dde795211361024ae31a44
Pin SHA256: bdrBhpj38ffhxpubzkINl0rG+UyossdhcBYj+Zx2fcc=
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 ca.kontur.ru
Fingerprint SHA256: e1cc2e6616878f1b21215e5fbebb1fd588b175d23134819833fe088769b9b6b2
Pin SHA256: 5wpzMa1TXy2c80ASWyXQsQdjnhLdjmX7MIwfHecH4Ss=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
2 Sent by server R11
Fingerprint SHA256: 591e9ce6c863d3a079e9fabe1478c7339a26b21269dde795211361024ae31a44
Pin SHA256: bdrBhpj38ffhxpubzkINl0rG+UyossdhcBYj+Zx2fcc=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
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 ca.kontur.ru
Fingerprint SHA256: e1cc2e6616878f1b21215e5fbebb1fd588b175d23134819833fe088769b9b6b2
Pin SHA256: 5wpzMa1TXy2c80ASWyXQsQdjnhLdjmX7MIwfHecH4Ss=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
2 Sent by server R11
Fingerprint SHA256: 591e9ce6c863d3a079e9fabe1478c7339a26b21269dde795211361024ae31a44
Pin SHA256: bdrBhpj38ffhxpubzkINl0rG+UyossdhcBYj+Zx2fcc=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
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 ca.kontur.ru
Fingerprint SHA256: e1cc2e6616878f1b21215e5fbebb1fd588b175d23134819833fe088769b9b6b2
Pin SHA256: 5wpzMa1TXy2c80ASWyXQsQdjnhLdjmX7MIwfHecH4Ss=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
2 Sent by server R11
Fingerprint SHA256: 591e9ce6c863d3a079e9fabe1478c7339a26b21269dde795211361024ae31a44
Pin SHA256: bdrBhpj38ffhxpubzkINl0rG+UyossdhcBYj+Zx2fcc=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
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 ca.kontur.ru
Fingerprint SHA256: e1cc2e6616878f1b21215e5fbebb1fd588b175d23134819833fe088769b9b6b2
Pin SHA256: 5wpzMa1TXy2c80ASWyXQsQdjnhLdjmX7MIwfHecH4Ss=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
2 Sent by server R11
Fingerprint SHA256: 591e9ce6c863d3a079e9fabe1478c7339a26b21269dde795211361024ae31a44
Pin SHA256: bdrBhpj38ffhxpubzkINl0rG+UyossdhcBYj+Zx2fcc=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
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 ca.kontur.ru
Fingerprint SHA256: e1cc2e6616878f1b21215e5fbebb1fd588b175d23134819833fe088769b9b6b2
Pin SHA256: 5wpzMa1TXy2c80ASWyXQsQdjnhLdjmX7MIwfHecH4Ss=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
2 Sent by server R11
Fingerprint SHA256: 591e9ce6c863d3a079e9fabe1478c7339a26b21269dde795211361024ae31a44
Pin SHA256: bdrBhpj38ffhxpubzkINl0rG+UyossdhcBYj+Zx2fcc=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
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 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_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (0xc02f)   ECDH x25519 (eq. 3072 bits RSA)   FS 128
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 (0xc027)   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_256_CBC_SHA384 (0xc028)   ECDH x25519 (eq. 3072 bits RSA)   FS   WEAK 256
TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 (0xcca8)   ECDH x25519 (eq. 3072 bits RSA)   FS 256
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA (0xc013)   ECDH x25519 (eq. 3072 bits RSA)   FS   WEAK 128
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA (0xc014)   ECDH x25519 (eq. 3072 bits RSA)   FS   WEAK 256
TLS_RSA_WITH_AES_128_GCM_SHA256 (0x9c)   WEAK 128
TLS_RSA_WITH_AES_128_CBC_SHA256 (0x3c)   WEAK 128
TLS_RSA_WITH_AES_128_CBC_SHA (0x2f)   WEAK 128
TLS_RSA_WITH_3DES_EDE_CBC_SHA (0xa)   WEAK 112
# TLS 1.1 (suites in server-preferred order)
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA (0xc013)   ECDH x25519 (eq. 3072 bits RSA)   FS   WEAK 128
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA (0xc014)   ECDH x25519 (eq. 3072 bits RSA)   FS   WEAK 256
TLS_RSA_WITH_AES_128_CBC_SHA (0x2f)   WEAK 128
TLS_RSA_WITH_3DES_EDE_CBC_SHA (0xa)   WEAK 112
# TLS 1.0 (suites in server-preferred order)
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA (0xc013)   ECDH x25519 (eq. 3072 bits RSA)   FS   WEAK 128
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA (0xc014)   ECDH x25519 (eq. 3072 bits RSA)   FS   WEAK 256
TLS_RSA_WITH_AES_128_CBC_SHA (0x2f)   WEAK 128
TLS_RSA_WITH_3DES_EDE_CBC_SHA (0xa)   WEAK 112


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_ECDHE_RSA_WITH_AES_128_CBC_SHA   ECDH secp256r1  FS
Android 4.1.1 RSA 2048 (SHA256)   TLS 1.0 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA   ECDH secp256r1  FS
Android 4.2.2 RSA 2048 (SHA256)   TLS 1.0 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA   ECDH secp256r1  FS
Android 4.3 RSA 2048 (SHA256)   TLS 1.0 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA   ECDH secp256r1  FS
Android 4.4.2 RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Android 5.0.0 RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Android 6.0 RSA 2048 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Android 7.0 RSA 2048 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH x25519  FS
Android 8.0 RSA 2048 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH x25519  FS
Android 8.1 RSA 2048 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH x25519  FS
Android 9.0 RSA 2048 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH x25519  FS
Baidu Jan 2015 RSA 2048 (SHA256)   TLS 1.0 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA   ECDH secp256r1  FS
BingPreview Jan 2015 RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_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 RSA 2048 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH x25519  FS
Chrome 70 / Win 10 RSA 2048 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH x25519  FS
Chrome 80 / Win 10  R RSA 2048 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH x25519  FS
Firefox 31.3.0 ESR / Win 7 RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Firefox 47 / Win 7  R RSA 2048 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Firefox 49 / XP SP3 RSA 2048 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Firefox 62 / Win 7  R RSA 2048 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH x25519  FS
Firefox 73 / Win 10  R RSA 2048 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH x25519  FS
Googlebot Feb 2018 RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH x25519  FS
IE 7 / Vista RSA 2048 (SHA256)   TLS 1.0 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA   ECDH secp256r1  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_ECDHE_RSA_WITH_AES_128_CBC_SHA   ECDH secp256r1  FS
IE 11 / Win 7  R RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256   ECDH secp256r1  FS
IE 11 / Win 8.1  R RSA 2048 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256   ECDH secp256r1  FS
IE 10 / Win Phone 8.0 RSA 2048 (SHA256)   TLS 1.0 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA   ECDH secp256r1  FS
IE 11 / Win Phone 8.1  R RSA 2048 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256   ECDH secp256r1  FS
IE 11 / Win Phone 8.1 Update  R RSA 2048 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256   ECDH secp256r1  FS
IE 11 / Win 10  R RSA 2048 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Edge 15 / Win 10  R RSA 2048 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH x25519  FS
Edge 16 / Win 10  R RSA 2048 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH x25519  FS
Edge 18 / Win 10  R RSA 2048 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH x25519  FS
Edge 13 / Win Phone 10  R RSA 2048 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  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_ECDHE_RSA_WITH_AES_128_CBC_SHA   ECDH secp256r1  FS
Java 8u161 RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Java 11.0.3 RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Java 12.0.1 RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  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_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
OpenSSL 1.0.2s  R RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
OpenSSL 1.1.0k  R RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH x25519  FS
OpenSSL 1.1.1c  R RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH x25519  FS
Safari 5.1.9 / OS X 10.6.8 RSA 2048 (SHA256)   TLS 1.0 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA   ECDH secp256r1  FS
Safari 6 / iOS 6.0.1 RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256   ECDH secp256r1  FS
Safari 6.0.4 / OS X 10.8.4  R RSA 2048 (SHA256)   TLS 1.0 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA   ECDH secp256r1  FS
Safari 7 / iOS 7.1  R RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256   ECDH secp256r1  FS
Safari 7 / OS X 10.9  R RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256   ECDH secp256r1  FS
Safari 8 / iOS 8.4  R RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256   ECDH secp256r1  FS
Safari 8 / OS X 10.10  R RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256   ECDH secp256r1  FS
Safari 9 / iOS 9  R RSA 2048 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Safari 9 / OS X 10.11  R RSA 2048 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Safari 10 / iOS 10  R RSA 2048 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Safari 10 / OS X 10.12  R RSA 2048 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Safari 12.1.2 / MacOS 10.14.6 Beta  R RSA 2048 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH x25519  FS
Safari 12.1.1 / iOS 12.3.1  R RSA 2048 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH x25519  FS
Apple ATS 9 / iOS 9  R RSA 2048 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Yahoo Slurp Jan 2015 RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
YandexBot Jan 2015 RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   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: 0xc013
POODLE (SSLv3) No, SSL 3 not supported (more info)
POODLE (TLS) No (more info)
Zombie POODLE No (more info)   TLS 1.2 : 0xc027
GOLDENDOODLE No (more info)   TLS 1.2 : 0xc027
OpenSSL 0-Length No (more info)   TLS 1.2 : 0xc027
Sleeping POODLE No (more info)   TLS 1.2 : 0xc027
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 modern browsers (more info)
ALPN Yes   h2 http/1.1
NPN Yes   h2 http/1.1
Session resumption (caching) Yes
Session resumption (tickets) Yes
OCSP stapling Yes
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, x448, secp521r1, secp384r1 (server preferred order)
SSL 2 handshake compatibility Yes


HTTP Requests
1 https://ca.kontur.ru/  (HTTP/1.1 200 OK)
1
Date Fri, 22 Aug 2025 09:41:58 GMT
Content-Type text/html; charset=utf-8
Content-Length 157507
Connection close
Set-Cookie sr_singular=c9e05bd5-444d-4a47-84d9-e770bd877085; domain=ca.kontur.ru; path=/; httponly
Set-Cookie location_region=77; expires=Sat, 22 Aug 2026 09:41:58 GMT; path=/
Set-Cookie location_city=5919; expires=Sat, 22 Aug 2026 09:41:58 GMT; path=/
Set-Cookie location_city=5919; expires=Sat, 22 Aug 2026 09:41:58 GMT; path=/; secure; samesite=none
Set-Cookie .AspNetCore.Mvc.CookieTempDataProvider=; expires=Thu, 01 Jan 1970 00:00:00 GMT; path=/; samesite=lax; httponly
X-Kontur-Trace-Id 43046c3ec7d37d5d68201f5f3be43261
Context-Globals FgAAAHZvc3Rvay50cmFjaW5nLmNvbnRleHRJAAAANDMwNDZjM2UtYzdkMy03ZDVkLTY4MjAtMWY1ZjNiZTQzMjYxOzU3NTUzYjgyLTc1ZWQtMWZiMS1hNWFjLTliMzhkMjEzMzQzMRcAAAB2b3N0b2sucmVxdWVzdC5wcmlvcml0eQgAAABPcmRpbmFyeQ==
X-Frame-Options SAMEORIGIN
Content-Security-Policy-Report-Only default-src data: https: 'unsafe-inline' 'unsafe-eval'; report-uri https://ca.kontur.ru/site/csp
Permissions-Policy browsing-topics=()
X-Kontur-Dont-Retry True
Dont-Retry True


Miscellaneous
Test date Fri, 22 Aug 2025 09:41:43 UTC
Test duration 159.689 seconds
HTTP status code 200
HTTP server signature -
Server hostname -


SSL Report v2.4.1