SSL Report: kronshtadt.ru (37.9.5.226)
Assessed on:  Wed, 15 Oct 2025 10:41:26 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
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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 1.3.  MORE INFO »
Certificate #1: RSA 2048 bits (SHA256withRSA)
Server Key and Certificate #1
Subject www.kronshtadt.ru
Fingerprint SHA256: 8c13470aa0e0b4b00147f73071935f7edcc443d9e7cacdaee5273be6e520424d
Pin SHA256: usGLzUX9A5iDeWs98bW1bq+f4Ta4xRWL1qFEbHznBKM=
Common names www.kronshtadt.ru
Alternative names www.kronshtadt.ru kronshtadt.ru
Serial Number 61c595acac9005c4067f0454
Valid from Thu, 10 Jul 2025 06:31:13 UTC
Valid until Tue, 11 Aug 2026 06:31:12 UTC (expires in 9 months and 26 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)
DNS CAA No (more info)
Trusted Yes
Mozilla  Apple  Android  Java  Windows 


Additional Certificates (if supplied)
Certificates provided 3 (3699 bytes)
Chain issues Incorrect order, Contains anchor
#2
Subject GlobalSign   In trust store
Fingerprint SHA256: cbb522d7b7f127ad6a0113865bdf1cd4102e7d0759af635a7cf4720dc963c53b
Pin SHA256: cGuxAXyFXFkWm61cF4HPWX8S0srS9j0aSqN0k4AP+4A=
Valid until Sun, 18 Mar 2029 10:00:00 UTC (expires in 3 years and 5 months)
Key RSA 2048 bits (e 65537)
Issuer GlobalSign   Self-signed
Signature algorithm SHA256withRSA
#3
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 5 months)
Key RSA 2048 bits (e 65537)
Issuer GlobalSign
Signature algorithm SHA256withRSA


Certification Paths
Path #1: Trusted
1 Sent by server www.kronshtadt.ru
Fingerprint SHA256: 8c13470aa0e0b4b00147f73071935f7edcc443d9e7cacdaee5273be6e520424d
Pin SHA256: usGLzUX9A5iDeWs98bW1bq+f4Ta4xRWL1qFEbHznBKM=

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

RSA 2048 bits (e 65537) / SHA256withRSA
3 Sent by server
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 www.kronshtadt.ru
Fingerprint SHA256: 8c13470aa0e0b4b00147f73071935f7edcc443d9e7cacdaee5273be6e520424d
Pin SHA256: usGLzUX9A5iDeWs98bW1bq+f4Ta4xRWL1qFEbHznBKM=

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

RSA 2048 bits (e 65537) / SHA256withRSA
3 Sent by server
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 www.kronshtadt.ru
Fingerprint SHA256: 8c13470aa0e0b4b00147f73071935f7edcc443d9e7cacdaee5273be6e520424d
Pin SHA256: usGLzUX9A5iDeWs98bW1bq+f4Ta4xRWL1qFEbHznBKM=

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

RSA 2048 bits (e 65537) / SHA256withRSA
3 Sent by server
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 www.kronshtadt.ru
Fingerprint SHA256: 8c13470aa0e0b4b00147f73071935f7edcc443d9e7cacdaee5273be6e520424d
Pin SHA256: usGLzUX9A5iDeWs98bW1bq+f4Ta4xRWL1qFEbHznBKM=

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

RSA 2048 bits (e 65537) / SHA256withRSA
3 Sent by server
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 www.kronshtadt.ru
Fingerprint SHA256: 8c13470aa0e0b4b00147f73071935f7edcc443d9e7cacdaee5273be6e520424d
Pin SHA256: usGLzUX9A5iDeWs98bW1bq+f4Ta4xRWL1qFEbHznBKM=

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

RSA 2048 bits (e 65537) / SHA256withRSA
3 Sent by server
In trust store
GlobalSign   Self-signed
Fingerprint SHA256: cbb522d7b7f127ad6a0113865bdf1cd4102e7d0759af635a7cf4720dc963c53b
Pin SHA256: cGuxAXyFXFkWm61cF4HPWX8S0srS9j0aSqN0k4AP+4A=

RSA 2048 bits (e 65537) / SHA256withRSA

Click here to expand

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


Cipher Suites
# TLS 1.3 (suites in server-preferred order)
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 256P


Handshake Simulation
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
Chrome 69 / Win 7  R Server sent fatal alert: protocol_version
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 62 / Win 7  R Server sent fatal alert: protocol_version
Firefox 73 / Win 10  R -   TLS 1.3 TLS_AES_128_GCM_SHA256   ECDH x25519  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 1.1.0k  R Server sent fatal alert: protocol_version
OpenSSL 1.1.1c  R -   TLS 1.3 TLS_AES_128_GCM_SHA256   ECDH x25519  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
# 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)
Android 4.4.2 Protocol mismatch (not simulated)
Android 5.0.0 Protocol mismatch (not simulated)
Android 6.0 Protocol mismatch (not simulated)
Android 7.0 Protocol mismatch (not simulated)
Android 8.0 Protocol mismatch (not simulated)
Baidu Jan 2015 Protocol mismatch (not simulated)
BingPreview Jan 2015 Protocol mismatch (not simulated)
Chrome 49 / XP SP3 Protocol mismatch (not simulated)
Firefox 31.3.0 ESR / Win 7 Protocol mismatch (not simulated)
Firefox 47 / Win 7  R Protocol mismatch (not simulated)
Firefox 49 / XP SP3 Protocol mismatch (not simulated)
Googlebot Feb 2018 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 11 / Win 7  R Protocol mismatch (not simulated)
IE 11 / Win 8.1  R Protocol mismatch (not simulated)
IE 10 / Win Phone 8.0 Protocol mismatch (not simulated)
IE 11 / Win Phone 8.1  R Protocol mismatch (not simulated)
IE 11 / Win Phone 8.1 Update  R Protocol mismatch (not simulated)
IE 11 / Win 10  R Protocol mismatch (not simulated)
Edge 15 / Win 10  R Protocol mismatch (not simulated)
Edge 16 / Win 10  R Protocol mismatch (not simulated)
Edge 18 / Win 10  R Protocol mismatch (not simulated)
Edge 13 / Win Phone 10  R Protocol mismatch (not simulated)
Java 6u45   No SNI 2 Protocol mismatch (not simulated)
Java 7u25 Protocol mismatch (not simulated)
Java 8u161 Protocol mismatch (not simulated)
OpenSSL 0.9.8y Protocol mismatch (not simulated)
OpenSSL 1.0.1l  R Protocol mismatch (not simulated)
OpenSSL 1.0.2s  R Protocol mismatch (not simulated)
Safari 5.1.9 / OS X 10.6.8 Protocol mismatch (not simulated)
Safari 6 / iOS 6.0.1 Protocol mismatch (not simulated)
Safari 6.0.4 / OS X 10.8.4  R Protocol mismatch (not simulated)
Safari 7 / iOS 7.1  R Protocol mismatch (not simulated)
Safari 7 / OS X 10.9  R Protocol mismatch (not simulated)
Safari 8 / iOS 8.4  R Protocol mismatch (not simulated)
Safari 8 / OS X 10.10  R Protocol mismatch (not simulated)
Safari 9 / iOS 9  R Protocol mismatch (not simulated)
Safari 9 / OS X 10.11  R Protocol mismatch (not simulated)
Safari 10 / iOS 10  R Protocol mismatch (not simulated)
Safari 10 / OS X 10.12  R Protocol mismatch (not simulated)
Apple ATS 9 / iOS 9  R Protocol mismatch (not simulated)
Yahoo Slurp Jan 2015 Protocol mismatch (not simulated)
YandexBot Jan 2015 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
ROBOT (vulnerability) No (more info)
Forward Secrecy Yes (with most browsers)   ROBUST (more info)
ALPN Yes   h2 http/1.1
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)
Supported Named Groups x25519, secp256r1, secp384r1, secp521r1 (server preferred order)
SSL 2 handshake compatibility No
0-RTT enabled No


HTTP Requests
1 https://kronshtadt.ru/  (HTTP/1.1 200 OK)
1
Accept-Ranges none
Content-Type text/html; charset=utf-8
Date Wed, 15 Oct 2025 10:41:03 GMT
Etag "46959-waAGUbQpoNYnw5NkdgpBX3678uI"
Set-Cookie i18n_redirected=ru; Path=/; Expires=Thu, 15 Oct 2026 10:41:03 GMT; SameSite=Lax
Vary Accept-Encoding
Connection close
Transfer-Encoding chunked


Miscellaneous
Test date Wed, 15 Oct 2025 10:40:54 UTC
Test duration 31.888 seconds
HTTP status code 200
HTTP server signature -
Server hostname -


SSL Report v2.4.1