SSL Report:
fprc.nask.pl
(194.181.27.1)
Assessed on: Thu, 18 Sep 2025 09:30:39 UTC
| Clear cache
Summary
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 does not support Forward Secrecy with the reference browsers.
Grade capped to B.
MORE INFO »
This server supports TLS 1.3. MORE INFO »
HTTP Strict Transport Security (HSTS) with long duration deployed on this server.
MORE INFO »
DNS Certification Authority Authorization (CAA) Policy found for this domain.
MORE INFO »
Certificate #1: RSA 4096 bits (SHA256withRSA)
Certification Paths |
Configuration
| Protocols | |
| TLS 1.3 | Yes |
| TLS 1.2 | Yes |
| TLS 1.1 | No |
| TLS 1.0 | No |
| SSL 3 | No |
| SSL 2 | No |
| Cipher Suites | ||
|
# TLS 1.3 (we could not determine if the server has a preference)
|
||
TLS_AES_128_GCM_SHA256 (0x1301)
ECDH x25519 (eq. 3072 bits RSA) FS
|
128 | |
|
# TLS 1.2 (suites in server-preferred order)
|
||
TLS_RSA_WITH_AES_256_GCM_SHA384 (0x9d)
WEAK
|
256 | |
TLS_RSA_WITH_AES_128_GCM_SHA256 (0x9c)
WEAK
|
128 | |
| Handshake Simulation | |||
| Android 4.4.2 | RSA 4096 (SHA256) | TLS 1.2 | TLS_RSA_WITH_AES_256_GCM_SHA384 No FS |
| Android 5.0.0 | RSA 4096 (SHA256) | TLS 1.2 | TLS_RSA_WITH_AES_128_GCM_SHA256 No FS |
| Android 6.0 | RSA 4096 (SHA256) | TLS 1.2 | TLS_RSA_WITH_AES_128_GCM_SHA256 No FS |
| Android 7.0 | RSA 4096 (SHA256) | TLS 1.2 | TLS_RSA_WITH_AES_256_GCM_SHA384 No FS |
| Android 8.0 | RSA 4096 (SHA256) | TLS 1.2 | TLS_RSA_WITH_AES_256_GCM_SHA384 No FS |
| Android 8.1 | - | TLS 1.3 | TLS_AES_128_GCM_SHA256 ECDH x25519 FS |
| Android 9.0 | - | TLS 1.3 | TLS_AES_128_GCM_SHA256 ECDH x25519 FS |
| BingPreview Jan 2015 | RSA 4096 (SHA256) | TLS 1.2 | TLS_RSA_WITH_AES_256_GCM_SHA384 No FS |
| Chrome 49 / XP SP3 | RSA 4096 (SHA256) | TLS 1.2 | TLS_RSA_WITH_AES_128_GCM_SHA256 No FS |
| Chrome 69 / Win 7 R | RSA 4096 (SHA256) | TLS 1.2 | TLS_RSA_WITH_AES_256_GCM_SHA384 No FS |
| 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 31.3.0 ESR / Win 7 |
Server sent fatal alert: handshake_failure |
||
| Firefox 47 / Win 7 R |
Server sent fatal alert: handshake_failure |
||
| Firefox 49 / XP SP3 |
Server sent fatal alert: handshake_failure |
||
| Firefox 62 / Win 7 R |
Server sent fatal alert: handshake_failure |
||
| Firefox 73 / Win 10 R | - | TLS 1.3 | TLS_AES_128_GCM_SHA256 ECDH x25519 FS |
| Googlebot Feb 2018 | RSA 4096 (SHA256) | TLS 1.2 | TLS_RSA_WITH_AES_256_GCM_SHA384 No FS |
| IE 11 / Win 7 R | RSA 4096 (SHA256) | TLS 1.2 | TLS_RSA_WITH_AES_256_GCM_SHA384 No FS |
| IE 11 / Win 8.1 R | RSA 4096 (SHA256) | TLS 1.2 | TLS_RSA_WITH_AES_256_GCM_SHA384 No FS |
| IE 11 / Win Phone 8.1 R |
Server sent fatal alert: handshake_failure |
||
| IE 11 / Win Phone 8.1 Update R | RSA 4096 (SHA256) | TLS 1.2 | TLS_RSA_WITH_AES_256_GCM_SHA384 No FS |
| IE 11 / Win 10 R | RSA 4096 (SHA256) | TLS 1.2 | TLS_RSA_WITH_AES_256_GCM_SHA384 No FS |
| Edge 15 / Win 10 R | RSA 4096 (SHA256) | TLS 1.2 | TLS_RSA_WITH_AES_256_GCM_SHA384 No FS |
| Edge 16 / Win 10 R | RSA 4096 (SHA256) | TLS 1.2 | TLS_RSA_WITH_AES_256_GCM_SHA384 No FS |
| Edge 18 / Win 10 R | RSA 4096 (SHA256) | TLS 1.2 | TLS_RSA_WITH_AES_256_GCM_SHA384 No FS |
| Edge 13 / Win Phone 10 R | RSA 4096 (SHA256) | TLS 1.2 | TLS_RSA_WITH_AES_256_GCM_SHA384 No FS |
| Java 8u161 | RSA 4096 (SHA256) | TLS 1.2 | TLS_RSA_WITH_AES_256_GCM_SHA384 No 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 1.0.1l R | RSA 4096 (SHA256) | TLS 1.2 | TLS_RSA_WITH_AES_256_GCM_SHA384 No FS |
| OpenSSL 1.0.2s R | RSA 4096 (SHA256) | TLS 1.2 | TLS_RSA_WITH_AES_256_GCM_SHA384 No FS |
| OpenSSL 1.1.0k R | RSA 4096 (SHA256) | TLS 1.2 | TLS_RSA_WITH_AES_256_GCM_SHA384 No FS |
| OpenSSL 1.1.1c R | - | TLS 1.3 | TLS_AES_128_GCM_SHA256 ECDH x25519 FS |
| Safari 6 / iOS 6.0.1 |
Server sent fatal alert: handshake_failure |
||
| Safari 7 / iOS 7.1 R |
Server sent fatal alert: handshake_failure |
||
| Safari 7 / OS X 10.9 R |
Server sent fatal alert: handshake_failure |
||
| Safari 8 / iOS 8.4 R |
Server sent fatal alert: handshake_failure |
||
| Safari 8 / OS X 10.10 R |
Server sent fatal alert: handshake_failure |
||
| Safari 9 / iOS 9 R | RSA 4096 (SHA256) | TLS 1.2 | TLS_RSA_WITH_AES_256_GCM_SHA384 No FS |
| Safari 9 / OS X 10.11 R | RSA 4096 (SHA256) | TLS 1.2 | TLS_RSA_WITH_AES_256_GCM_SHA384 No FS |
| Safari 10 / iOS 10 R | RSA 4096 (SHA256) | TLS 1.2 | TLS_RSA_WITH_AES_256_GCM_SHA384 No FS |
| Safari 10 / OS X 10.12 R | RSA 4096 (SHA256) | TLS 1.2 | TLS_RSA_WITH_AES_256_GCM_SHA384 No FS |
| Safari 12.1.2 / MacOS 10.14.6 Beta R | - | TLS 1.3 | TLS_AES_128_GCM_SHA256 ECDH x25519 FS |
| Safari 12.1.1 / iOS 12.3.1 R | - | TLS 1.3 | TLS_AES_128_GCM_SHA256 ECDH x25519 FS |
| Apple ATS 9 / iOS 9 R |
Server sent fatal alert: handshake_failure |
||
| Yahoo Slurp Jan 2015 | RSA 4096 (SHA256) | TLS 1.2 | TLS_RSA_WITH_AES_256_GCM_SHA384 No FS |
| YandexBot Jan 2015 | RSA 4096 (SHA256) | TLS 1.2 | TLS_RSA_WITH_AES_256_GCM_SHA384 No 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) |
||
| Baidu Jan 2015 |
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 10 / Win Phone 8.0 |
Protocol mismatch (not simulated) |
||
| Java 6u45 No SNI 2 |
Protocol mismatch (not simulated) |
||
| Java 7u25 |
Protocol mismatch (not simulated) |
||
| OpenSSL 0.9.8y |
Protocol mismatch (not simulated) |
||
| Safari 5.1.9 / OS X 10.6.8 |
Protocol mismatch (not simulated) |
||
| Safari 6.0.4 / OS X 10.8.4 R |
Protocol mismatch (not simulated) |
||
| (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) |
| GOLDENDOODLE | No (more info) |
| OpenSSL 0-Length | No (more info) |
| Sleeping POODLE | No (more info) |
| 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) | Yes |
| Session resumption (tickets) | No |
| OCSP stapling | No |
| Strict Transport Security (HSTS) | Yes
max-age=31536000; includeSubDomains |
| 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, ECDHE suites not supported |
| Supported Named Groups | - |
| SSL 2 handshake compatibility | Yes |
| 0-RTT enabled | No |
|
HTTP Requests
|
|
1 https://fprc.nask.pl/
(HTTP/1.0 200 OK)
| 1 | |
| Content-Type | text/html; charset=utf-8 | |
| Content-Length | 94 | |
| Cache-Control | no-store | |
| Pragma | no-cache | |
| Connection | Close | |
| Date | Thu, 18 Sep 2025 09:28:49 GMT | |
| X-Frame-Options | SAMEORIGIN | |
| Strict-Transport-Security | max-age=31536000; includeSubDomains | |
| X-Content-Type-Options | nosniff | |
| X-XSS-Protection | 1 | |
| Content-Security-Policy | default-src 'self' 'unsafe-inline' 'unsafe-eval' data: blob:; frame-ancestors 'self'; base-uri 'self'; block-all-mixed-content | |
| Miscellaneous | |
| Test date | Thu, 18 Sep 2025 09:28:33 UTC |
| Test duration | 125.719 seconds |
| HTTP status code | 200 |
| HTTP server signature | - |
| Server hostname | - |
SSL Report v2.4.1