SSL Report:
remote.ctlab.com
(196.211.8.18)
Assessed on: Mon, 09 Jun 2025 14:36:29 UTC
| Clear cache
Summary
0
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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 weak Diffie-Hellman (DH) key exchange parameters. Grade capped to B.
MORE INFO »
This server accepts RC4 cipher, but only with older protocols. 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
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Subject |
*.ctlab.com
Fingerprint SHA256: f65fbc96944939c6d46072f6c6cc9d614fd00dbc0660388feb7e0ec2fa727973 Pin SHA256: v/+kGLk0SpE2HYOmyrvMhAMS+Qzh1sF3SC8bJD6ySH0= |
Common names | *.ctlab.com |
Alternative names | *.ctlab.com ctlab.com |
Serial Number | 009fa18f0200b38a05 |
Valid from | Fri, 30 May 2025 09:18:54 UTC |
Valid until | Wed, 01 Jul 2026 09:18:54 UTC (expires in 1 year) |
Key | RSA 2048 bits (e 65537) |
Weak key (Debian) | No |
Issuer | Go Daddy Secure Certificate Authority - G2
AIA: http://certificates.godaddy.com/repository/gdig2.crt |
Signature algorithm | SHA256withRSA |
Extended Validation | No |
Certificate Transparency | Yes (certificate) |
OCSP Must Staple | No |
Revocation information |
CRL, OCSP CRL: http://crl.godaddy.com/gdig2s1-48667.crl OCSP: http://ocsp.godaddy.com/ |
Revocation status | Good (not revoked) |
DNS CAA | No (more info) |
Trusted | Yes
Mozilla Apple Android Java Windows |


![]() ![]() |
Configuration

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

Cipher Suites | ||
![]() ![]() # TLS 1.2 (suites in server-preferred order)
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TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 (0xc028 )
ECDH secp256r1 (eq. 3072 bits RSA) FS
WEAK
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256 | |
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 (0xc027 )
ECDH secp256r1 (eq. 3072 bits RSA) FS
WEAK
|
128 | |
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA (0xc014 )
ECDH secp256r1 (eq. 3072 bits RSA) FS
WEAK
|
256 | |
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA (0xc013 )
ECDH secp256r1 (eq. 3072 bits RSA) FS
WEAK
|
128 | |
TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 (0x9f )
DH 1024 bits FS
WEAK
|
256 | |
TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 (0x9e )
DH 1024 bits FS
WEAK
|
128 | |
TLS_DHE_RSA_WITH_AES_256_CBC_SHA (0x39 )
DH 1024 bits FS
WEAK
|
256 | |
TLS_DHE_RSA_WITH_AES_128_CBC_SHA (0x33 )
DH 1024 bits FS
WEAK
|
128 | |
TLS_RSA_WITH_AES_256_GCM_SHA384 (0x9d )
WEAK
|
256 | |
TLS_RSA_WITH_AES_128_GCM_SHA256 (0x9c )
WEAK
|
128 | |
TLS_RSA_WITH_AES_256_CBC_SHA256 (0x3d )
WEAK
|
256 | |
TLS_RSA_WITH_AES_128_CBC_SHA256 (0x3c )
WEAK
|
128 | |
TLS_RSA_WITH_AES_256_CBC_SHA (0x35 )
WEAK
|
256 | |
TLS_RSA_WITH_AES_128_CBC_SHA (0x2f )
WEAK
|
128 | |
TLS_RSA_WITH_3DES_EDE_CBC_SHA (0xa )
WEAK
|
112 | |
TLS_RSA_WITH_RC4_128_SHA (0x5 )
INSECURE
|
128 | |
TLS_RSA_WITH_RC4_128_MD5 (0x4 )
INSECURE
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128 |

Handshake Simulation | |||
Android 4.4.2 | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 ECDH secp256r1 FS |
Android 5.0.0 | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA ECDH secp256r1 FS |
Android 6.0 | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA ECDH secp256r1 FS |
Android 7.0 | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA ECDH secp256r1 FS |
Android 8.0 | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA ECDH secp256r1 FS |
Android 8.1 | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA ECDH secp256r1 FS |
Android 9.0 | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA ECDH secp256r1 FS |
BingPreview Jan 2015 | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 ECDH secp256r1 FS |
Chrome 49 / XP SP3 | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA ECDH secp256r1 FS |
Chrome 69 / Win 7 R | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA ECDH secp256r1 FS |
Chrome 70 / Win 10 | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA ECDH secp256r1 FS |
Chrome 80 / Win 10 R | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA ECDH secp256r1 FS |
Firefox 31.3.0 ESR / Win 7 | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA ECDH secp256r1 FS |
Firefox 47 / Win 7 R | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA ECDH secp256r1 FS |
Firefox 49 / XP SP3 | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA ECDH secp256r1 FS |
Firefox 62 / Win 7 R | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA ECDH secp256r1 FS |
Firefox 73 / Win 10 R | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA ECDH secp256r1 FS |
Googlebot Feb 2018 | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA ECDH secp256r1 FS |
IE 11 / Win 7 R | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 ECDH secp256r1 FS |
IE 11 / Win 8.1 R | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 ECDH secp256r1 FS |
IE 11 / Win Phone 8.1 R | RSA 2048 (SHA256) | TLS 1.2 | 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 | TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 ECDH secp256r1 FS |
IE 11 / Win 10 R | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 ECDH secp256r1 FS |
Edge 15 / Win 10 R | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 ECDH secp256r1 FS |
Edge 16 / Win 10 R | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 ECDH secp256r1 FS |
Edge 18 / Win 10 R | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 ECDH secp256r1 FS |
Edge 13 / Win Phone 10 R | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 ECDH secp256r1 FS |
Java 8u161 | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 ECDH secp256r1 FS |
Java 11.0.3 | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 ECDH secp256r1 FS |
Java 12.0.1 | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 ECDH secp256r1 FS |
OpenSSL 1.0.1l R | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 ECDH secp256r1 FS |
OpenSSL 1.0.2s R | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 ECDH secp256r1 FS |
OpenSSL 1.1.0k R | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 ECDH secp256r1 FS |
OpenSSL 1.1.1c R | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 ECDH secp256r1 FS |
Safari 6 / iOS 6.0.1 | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 ECDH secp256r1 FS |
Safari 7 / iOS 7.1 R | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 ECDH secp256r1 FS |
Safari 7 / OS X 10.9 R | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 ECDH secp256r1 FS |
Safari 8 / iOS 8.4 R | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 ECDH secp256r1 FS |
Safari 8 / OS X 10.10 R | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 ECDH secp256r1 FS |
Safari 9 / iOS 9 R | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 ECDH secp256r1 FS |
Safari 9 / OS X 10.11 R | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 ECDH secp256r1 FS |
Safari 10 / iOS 10 R | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 ECDH secp256r1 FS |
Safari 10 / OS X 10.12 R | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 ECDH secp256r1 FS |
Safari 12.1.2 / MacOS 10.14.6 Beta R | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 ECDH secp256r1 FS |
Safari 12.1.1 / iOS 12.3.1 R | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 ECDH secp256r1 FS |
Apple ATS 9 / iOS 9 R | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 ECDH secp256r1 FS |
Yahoo Slurp Jan 2015 | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 ECDH secp256r1 FS |
YandexBot Jan 2015 | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 ECDH secp256r1 FS |
![]() ![]() # Not simulated clients (Protocol mismatch)
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Android 2.3.7 No SNI 2 |
Protocol mismatch (not simulated) |
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Android 4.0.4 |
Protocol mismatch (not simulated) |
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Android 4.1.1 |
Protocol mismatch (not simulated) |
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Android 4.2.2 |
Protocol mismatch (not simulated) |
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Android 4.3 |
Protocol mismatch (not simulated) |
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Baidu Jan 2015 |
Protocol mismatch (not simulated) |
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IE 6 / XP No FS 1 No SNI 2 |
Protocol mismatch (not simulated) |
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IE 7 / Vista |
Protocol mismatch (not simulated) |
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IE 8 / XP No FS 1 No SNI 2 |
Protocol mismatch (not simulated) |
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IE 8-10 / Win 7 R |
Protocol mismatch (not simulated) |
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IE 10 / Win Phone 8.0 |
Protocol mismatch (not simulated) |
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Java 6u45 No SNI 2 |
Protocol mismatch (not simulated) |
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Java 7u25 |
Protocol mismatch (not simulated) |
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OpenSSL 0.9.8y |
Protocol mismatch (not simulated) |
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Safari 5.1.9 / OS X 10.6.8 |
Protocol mismatch (not simulated) |
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Safari 6.0.4 / OS X 10.8.4 R |
Protocol mismatch (not simulated) |
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(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 : 0xc027
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GOLDENDOODLE | No (more info)
TLS 1.2 : 0xc027
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OpenSSL 0-Length | No (more info)
TLS 1.2 : 0xc027
|
Sleeping POODLE | No (more info)
TLS 1.2 : 0xc027
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Downgrade attack prevention | Unknown (requires support for at least two protocols, excl. SSL2) |
SSL/TLS compression | No |
RC4 | Yes INSECURE (more info) |
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 | Weak key exchange WEAK |
ALPN | No |
NPN | No |
Session resumption (caching) | No (IDs assigned but not accepted) |
Session resumption (tickets) | No |
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 | Yes Replace with custom DH parameters if possible (more info) |
DH public server param (Ys) reuse | Yes |
ECDH public server param reuse | Yes |
Supported Named Groups | secp256r1, secp384r1 (server preferred order) |
SSL 2 handshake compatibility | No |

![]() ![]() |
1 https://remote.ctlab.com/
(HTTP/1.1 302 Found)
| 1 | |
Content-Type | text/html; charset=utf-8 | |
Location | HTTPS://remote.ctlab.com/remote | |
Server | Microsoft-IIS/7.5 | |
X-Powered-By | ASP.NET | |
Date | Mon, 09 Jun 2025 14:32:58 GMT | |
Connection | close | |
Content-Length | 148 |
2 https://remote.ctlab.com/remote
(HTTP/1.1 302 Found)
| 2 | |
Cache-Control | private | |
Content-Type | text/html; charset=utf-8 | |
Location | /Remote/logon?ReturnUrl=%2fremote | |
Server | Microsoft-IIS/7.5 | |
X-AspNet-Version | 4.0.30319 | |
X-Powered-By | ASP.NET | |
Date | Mon, 09 Jun 2025 14:33:00 GMT | |
Connection | close | |
Content-Length | 150 |
3 https://remote.ctlab.com/Remote/logon?ReturnUrl=%2fremote
(HTTP/1.1 200 OK)
| 3 | |
Cache-Control | no-cache | |
Pragma | no-cache | |
Content-Type | text/html; charset=utf-8 | |
Expires | -1 | |
Server | Microsoft-IIS/7.5 | |
X-AspNet-Version | 4.0.30319 | |
Set-Cookie | ASP.NET_SessionId=yisxkpovwlqbqhnrf3lrs4a3; path=/; HttpOnly; SameSite=Lax | |
Set-Cookie | LogonBrowserType=DefaultWithoutDetection; expires=Mon, 23-Jun-2025 14:33:02 GMT; path=/; secure; HttpOnly | |
X-Powered-By | ASP.NET | |
Date | Mon, 09 Jun 2025 14:33:01 GMT | |
Connection | close | |
Content-Length | 14104 |

Miscellaneous | |
Test date | Mon, 09 Jun 2025 14:32:37 UTC |
Test duration | 232.193 seconds |
HTTP status code | 200 |
HTTP server signature | Microsoft-IIS/7.5 |
Server hostname | - |
SSL Report v2.4.0