SSL Report: emmtest.ztfsec.com (221.13.3.157)
Assessed on:  Tue, 04 Nov 2025 06:20:13 UTC | Clear cache
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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
F
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 anonymous (insecure) suites (see below for details). Grade set to F.
This server accepts RC4 cipher, but only with older protocols. Grade capped to B.  MORE INFO »
This server does not support Forward Secrecy with the reference browsers. Grade capped to B.  MORE INFO »
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 *.ztfsec.com
Fingerprint SHA256: 21eba731e4cf7ac623240fe06a9acaa0ecd146a55383486fabe162a5c726fed8
Pin SHA256: PpyWdFxwVzp0Am5qHnp96u8dqkqB1U3WdKqdn4IwN60=
Common names *.ztfsec.com
Alternative names *.ztfsec.com ztfsec.com
Serial Number 0d2f0822623a7e82e9ae692d6e412c0f
Valid from Thu, 16 Oct 2025 00:00:00 UTC
Valid until Fri, 30 Oct 2026 23:59:59 UTC (expires in 11 months and 26 days)
Key RSA 2048 bits (e 65537)
Weak key (Debian) No
Issuer DigiCert Global G2 TLS RSA SHA256 2020 CA1
AIA: http://cacerts.digicert.com/DigiCertGlobalG2TLSRSASHA2562020CA1-1.crt
Signature algorithm SHA256withRSA
Extended Validation No
Certificate Transparency Yes (certificate)
OCSP Must Staple No
Revocation information CRL, OCSP
CRL: http://crl3.digicert.com/DigiCertGlobalG2TLSRSASHA2562020CA1-1.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 2 (3039 bytes)
Chain issues None
#2
Subject DigiCert Global G2 TLS RSA SHA256 2020 CA1
Fingerprint SHA256: 1f8eb9e9a8e066cc5b3833e06b3129764b622639d5b163f600e1c79120bf3eed
Pin SHA256: Wec45nQiFwKvHtuHxSAMGkt19k+uPSw9JlEkxhvYPHk=
Valid until Mon, 23 Sep 2030 23:59:59 UTC (expires in 4 years and 10 months)
Key RSA 2048 bits (e 65537)
Issuer DigiCert Global Root G2
Signature algorithm SHA256withRSA


Certification Paths
Path #1: Trusted
1 Sent by server *.ztfsec.com
Fingerprint SHA256: 21eba731e4cf7ac623240fe06a9acaa0ecd146a55383486fabe162a5c726fed8
Pin SHA256: PpyWdFxwVzp0Am5qHnp96u8dqkqB1U3WdKqdn4IwN60=
RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
2 Sent by server DigiCert Global G2 TLS RSA SHA256 2020 CA1
Fingerprint SHA256: 1f8eb9e9a8e066cc5b3833e06b3129764b622639d5b163f600e1c79120bf3eed
Pin SHA256: Wec45nQiFwKvHtuHxSAMGkt19k+uPSw9JlEkxhvYPHk=
RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
3 In trust store DigiCert Global Root G2   Self-signed
Fingerprint SHA256: cb3ccbb76031e5e0138f8dd39a23f9de47ffc35e43c1144cea27d46a5ab1cb5f
Pin SHA256: i7WTqTvh0OioIruIfFR4kMPnBqrS2rdiVPl/s2uC/CY=
RSA 2048 bits (e 65537) / SHA256withRSA
Path #1: Trusted
1 Sent by server *.ztfsec.com
Fingerprint SHA256: 21eba731e4cf7ac623240fe06a9acaa0ecd146a55383486fabe162a5c726fed8
Pin SHA256: PpyWdFxwVzp0Am5qHnp96u8dqkqB1U3WdKqdn4IwN60=
RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
2 Sent by server DigiCert Global G2 TLS RSA SHA256 2020 CA1
Fingerprint SHA256: 1f8eb9e9a8e066cc5b3833e06b3129764b622639d5b163f600e1c79120bf3eed
Pin SHA256: Wec45nQiFwKvHtuHxSAMGkt19k+uPSw9JlEkxhvYPHk=
RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
3 In trust store DigiCert Global Root G2   Self-signed
Fingerprint SHA256: cb3ccbb76031e5e0138f8dd39a23f9de47ffc35e43c1144cea27d46a5ab1cb5f
Pin SHA256: i7WTqTvh0OioIruIfFR4kMPnBqrS2rdiVPl/s2uC/CY=
RSA 2048 bits (e 65537) / SHA256withRSA
Path #1: Trusted
1 Sent by server *.ztfsec.com
Fingerprint SHA256: 21eba731e4cf7ac623240fe06a9acaa0ecd146a55383486fabe162a5c726fed8
Pin SHA256: PpyWdFxwVzp0Am5qHnp96u8dqkqB1U3WdKqdn4IwN60=
RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
2 Sent by server DigiCert Global G2 TLS RSA SHA256 2020 CA1
Fingerprint SHA256: 1f8eb9e9a8e066cc5b3833e06b3129764b622639d5b163f600e1c79120bf3eed
Pin SHA256: Wec45nQiFwKvHtuHxSAMGkt19k+uPSw9JlEkxhvYPHk=
RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
3 In trust store DigiCert Global Root G2   Self-signed
Fingerprint SHA256: cb3ccbb76031e5e0138f8dd39a23f9de47ffc35e43c1144cea27d46a5ab1cb5f
Pin SHA256: i7WTqTvh0OioIruIfFR4kMPnBqrS2rdiVPl/s2uC/CY=
RSA 2048 bits (e 65537) / SHA256withRSA
Path #1: Trusted
1 Sent by server *.ztfsec.com
Fingerprint SHA256: 21eba731e4cf7ac623240fe06a9acaa0ecd146a55383486fabe162a5c726fed8
Pin SHA256: PpyWdFxwVzp0Am5qHnp96u8dqkqB1U3WdKqdn4IwN60=
RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
2 Sent by server DigiCert Global G2 TLS RSA SHA256 2020 CA1
Fingerprint SHA256: 1f8eb9e9a8e066cc5b3833e06b3129764b622639d5b163f600e1c79120bf3eed
Pin SHA256: Wec45nQiFwKvHtuHxSAMGkt19k+uPSw9JlEkxhvYPHk=
RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
3 In trust store DigiCert Global Root G2   Self-signed
Fingerprint SHA256: cb3ccbb76031e5e0138f8dd39a23f9de47ffc35e43c1144cea27d46a5ab1cb5f
Pin SHA256: i7WTqTvh0OioIruIfFR4kMPnBqrS2rdiVPl/s2uC/CY=
RSA 2048 bits (e 65537) / SHA256withRSA
Path #1: Trusted
1 Sent by server *.ztfsec.com
Fingerprint SHA256: 21eba731e4cf7ac623240fe06a9acaa0ecd146a55383486fabe162a5c726fed8
Pin SHA256: PpyWdFxwVzp0Am5qHnp96u8dqkqB1U3WdKqdn4IwN60=
RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
2 Sent by server DigiCert Global G2 TLS RSA SHA256 2020 CA1
Fingerprint SHA256: 1f8eb9e9a8e066cc5b3833e06b3129764b622639d5b163f600e1c79120bf3eed
Pin SHA256: Wec45nQiFwKvHtuHxSAMGkt19k+uPSw9JlEkxhvYPHk=
RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
3 In trust store DigiCert Global Root G2   Self-signed
Fingerprint SHA256: cb3ccbb76031e5e0138f8dd39a23f9de47ffc35e43c1144cea27d46a5ab1cb5f
Pin SHA256: i7WTqTvh0OioIruIfFR4kMPnBqrS2rdiVPl/s2uC/CY=
RSA 2048 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 (we could not determine if the server has a preference)
TLS_RSA_WITH_3DES_EDE_CBC_SHA (0xa)   WEAK 112
TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA (0xc012)   ECDH secp256r1 (eq. 3072 bits RSA)   FS   WEAK 112
TLS_ECDH_anon_WITH_3DES_EDE_CBC_SHA (0xc017)   INSECURE 112
TLS_RSA_WITH_AES_128_CBC_SHA (0x2f)   WEAK 128
TLS_RSA_WITH_CAMELLIA_128_CBC_SHA (0x41)   WEAK 128
TLS_RSA_WITH_SEED_CBC_SHA (0x96)   WEAK 128
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA (0xc013)   ECDH secp256r1 (eq. 3072 bits RSA)   FS   WEAK 128
TLS_RSA_WITH_AES_128_GCM_SHA256 (0x9c)   WEAK 128
TLS_RSA_WITH_AES_128_CBC_SHA256 (0x3c)   WEAK 128
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 (0xc027)   ECDH secp256r1 (eq. 3072 bits RSA)   FS   WEAK 128
TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (0xc02f)   ECDH secp256r1 (eq. 3072 bits RSA)   FS 128
TLS_RSA_WITH_IDEA_CBC_SHA (0x7)   WEAK 128
TLS_ECDHE_RSA_WITH_RC4_128_SHA (0xc011)   ECDH secp256r1 (eq. 3072 bits RSA)   FS   INSECURE 128
TLS_ECDH_anon_WITH_RC4_128_SHA (0xc016)   INSECURE 128
TLS_ECDH_anon_WITH_AES_128_CBC_SHA (0xc018)   INSECURE 128
TLS_RSA_WITH_AES_256_CBC_SHA (0x35)   WEAK 256
TLS_RSA_WITH_CAMELLIA_256_CBC_SHA (0x84)   WEAK 256
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA (0xc014)   ECDH secp256r1 (eq. 3072 bits RSA)   FS   WEAK 256
TLS_RSA_WITH_AES_256_GCM_SHA384 (0x9d)   WEAK 256
TLS_RSA_WITH_AES_256_CBC_SHA256 (0x3d)   WEAK 256
TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (0xc030)   ECDH secp256r1 (eq. 3072 bits RSA)   FS 256
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 (0xc028)   ECDH secp256r1 (eq. 3072 bits RSA)   FS   WEAK 256
TLS_ECDH_anon_WITH_AES_256_CBC_SHA (0xc019)   INSECURE 256
# TLS 1.1 (suites in server-preferred order)
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA (0xc014)   ECDH secp256r1 (eq. 3072 bits RSA)   FS   WEAK 256
TLS_ECDH_anon_WITH_AES_256_CBC_SHA (0xc019)   INSECURE 256
TLS_RSA_WITH_AES_256_CBC_SHA (0x35)   WEAK 256
TLS_RSA_WITH_CAMELLIA_256_CBC_SHA (0x84)   WEAK 256
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA (0xc013)   ECDH secp256r1 (eq. 3072 bits RSA)   FS   WEAK 128
TLS_ECDH_anon_WITH_AES_128_CBC_SHA (0xc018)   INSECURE 128
TLS_RSA_WITH_AES_128_CBC_SHA (0x2f)   WEAK 128
TLS_RSA_WITH_CAMELLIA_128_CBC_SHA (0x41)   WEAK 128
TLS_RSA_WITH_SEED_CBC_SHA (0x96)   WEAK 128
TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA (0xc012)   ECDH secp256r1 (eq. 3072 bits RSA)   FS   WEAK 112
TLS_ECDH_anon_WITH_3DES_EDE_CBC_SHA (0xc017)   INSECURE 112
TLS_RSA_WITH_3DES_EDE_CBC_SHA (0xa)   WEAK 112
TLS_RSA_WITH_IDEA_CBC_SHA (0x7)   WEAK 128
TLS_ECDHE_RSA_WITH_RC4_128_SHA (0xc011)   ECDH secp256r1 (eq. 3072 bits RSA)   FS   INSECURE 128
TLS_ECDH_anon_WITH_RC4_128_SHA (0xc016)   INSECURE 128
TLS_RSA_WITH_RC4_128_SHA (0x5)   INSECURE 128
TLS_RSA_WITH_RC4_128_MD5 (0x4)   INSECURE 128
# TLS 1.0 (we could not determine if the server has a preference)
TLS_RSA_WITH_3DES_EDE_CBC_SHA (0xa)   WEAK 112
TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA (0xc012)   ECDH secp256r1 (eq. 3072 bits RSA)   FS   WEAK 112
TLS_ECDH_anon_WITH_3DES_EDE_CBC_SHA (0xc017)   INSECURE 112
TLS_RSA_WITH_AES_128_CBC_SHA (0x2f)   WEAK 128
TLS_RSA_WITH_CAMELLIA_128_CBC_SHA (0x41)   WEAK 128
TLS_RSA_WITH_SEED_CBC_SHA (0x96)   WEAK 128
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA (0xc013)   ECDH secp256r1 (eq. 3072 bits RSA)   FS   WEAK 128
TLS_RSA_WITH_IDEA_CBC_SHA (0x7)   WEAK 128
TLS_ECDHE_RSA_WITH_RC4_128_SHA (0xc011)   ECDH secp256r1 (eq. 3072 bits RSA)   FS   INSECURE 128
TLS_ECDH_anon_WITH_RC4_128_SHA (0xc016)   INSECURE 128
TLS_ECDH_anon_WITH_AES_128_CBC_SHA (0xc018)   INSECURE 128
TLS_RSA_WITH_AES_256_CBC_SHA (0x35)   WEAK 256
TLS_RSA_WITH_CAMELLIA_256_CBC_SHA (0x84)   WEAK 256
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA (0xc014)   ECDH secp256r1 (eq. 3072 bits RSA)   FS   WEAK 256
TLS_ECDH_anon_WITH_AES_256_CBC_SHA (0xc019)   INSECURE 256


Handshake Simulation
Android 2.3.7   No SNI 2 Server closed connection
Android 4.0.4 Server closed connection
Android 4.1.1 Server closed connection
Android 4.2.2 Server closed connection
Android 4.3 Server closed connection
Android 4.4.2 Server closed connection
Android 5.0.0 Server closed connection
Android 6.0 Server closed connection
Android 7.0 Server closed connection
Android 8.0 Server closed connection
Android 8.1 Server closed connection
Android 9.0 Server closed connection
Baidu Jan 2015 Server closed connection
BingPreview Jan 2015 Server closed connection
Chrome 49 / XP SP3 Server closed connection
Chrome 69 / Win 7  R Server closed connection
Chrome 70 / Win 10 Server closed connection
Chrome 80 / Win 10  R Server closed connection
Firefox 31.3.0 ESR / Win 7 Server closed connection
Firefox 47 / Win 7  R Server closed connection
Firefox 49 / XP SP3 Server closed connection
Firefox 62 / Win 7  R Server closed connection
Firefox 73 / Win 10  R Server closed connection
Googlebot Feb 2018 Server closed connection
IE 7 / Vista Server closed connection
IE 8 / XP   No FS 1   No SNI 2 Server closed connection
IE 8-10 / Win 7  R Server closed connection
IE 11 / Win 7  R Server closed connection
IE 11 / Win 8.1  R Server closed connection
IE 10 / Win Phone 8.0 Server closed connection
IE 11 / Win Phone 8.1  R Server closed connection
IE 11 / Win Phone 8.1 Update  R Server closed connection
IE 11 / Win 10  R Server closed connection
Edge 15 / Win 10  R Server closed connection
Edge 16 / Win 10  R Server closed connection
Edge 18 / Win 10  R Server closed connection
Edge 13 / Win Phone 10  R Server closed connection
Java 6u45   No SNI 2 Server closed connection
Java 7u25 Server closed connection
Java 8u161 Server closed connection
Java 11.0.3 Server closed connection
Java 12.0.1 Server closed connection
OpenSSL 0.9.8y Server closed connection
OpenSSL 1.0.1l  R Server closed connection
OpenSSL 1.0.2s  R Server closed connection
OpenSSL 1.1.0k  R Server closed connection
OpenSSL 1.1.1c  R Server closed connection
Safari 5.1.9 / OS X 10.6.8 Server closed connection
Safari 6 / iOS 6.0.1 Server closed connection
Safari 6.0.4 / OS X 10.8.4  R Server closed connection
Safari 7 / iOS 7.1  R Server closed connection
Safari 7 / OS X 10.9  R Server closed connection
Safari 8 / iOS 8.4  R Server closed connection
Safari 8 / OS X 10.10  R Server closed connection
Safari 9 / iOS 9  R Server closed connection
Safari 9 / OS X 10.11  R Server closed connection
Safari 10 / iOS 10  R Server closed connection
Safari 10 / OS X 10.12  R Server closed connection
Safari 12.1.2 / MacOS 10.14.6 Beta  R Server closed connection
Safari 12.1.1 / iOS 12.3.1  R Server closed connection
Apple ATS 9 / iOS 9  R Server closed connection
Yahoo Slurp Jan 2015 Server closed connection
YandexBot Jan 2015 Server closed connection
# 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: 0xc014
POODLE (SSLv3) No, SSL 3 not supported (more info)
POODLE (TLS) No (more info)
Zombie POODLE Unknown (more info)
GOLDENDOODLE Unknown (more info)
OpenSSL 0-Length Unknown (more info)
Sleeping POODLE Unknown (more info)
Downgrade attack prevention Yes, TLS_FALLBACK_SCSV supported (more info)
SSL/TLS compression No
RC4 Yes   INSECURE (more info)
Heartbeat (extension) Yes
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 No   WEAK (more info)
ALPN No
NPN Yes   http/1.1
Session resumption (caching) No (IDs assigned but not accepted)
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 secp256r1, secp521r1, secp384r1, secp256k1 (server preferred order)
SSL 2 handshake compatibility Yes


HTTP Requests
1 https://emmtest.ztfsec.com/  (HTTP/1.1 200 OK)
1
Server nginx
Date Tue, 04 Nov 2025 05:58:54 GMT
Content-Type text/plain
Transfer-Encoding chunked
Connection close
Vary Accept-Encoding


Miscellaneous
Test date Tue, 04 Nov 2025 06:14:05 UTC
Test duration 367.602 seconds
HTTP status code 200
HTTP server signature nginx
Server hostname -


SSL Report v2.4.1