SSL Report:
www.slupsk.pl
(193.242.215.9)
Assessed on: Fri, 03 Oct 2025 09:48:09 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 site works only in browsers with SNI support.
This server supports TLS 1.3. MORE INFO »
HTTP Strict Transport Security (HSTS) with long duration deployed on this server.
MORE INFO »
Certificate #1: RSA 2048 bits (SHA256withRSA)

Server Key and Certificate #1
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Subject |
www.slupsk.pl
Fingerprint SHA256: df72fdb74444746640c410a9e2f8af17c38f7e96285db1e4ae3efc3258d7fa69 Pin SHA256: N0xJQBC/1VyBetF24cgMqRpu4uNPXN8QD7UV1WDGYDw= |
Common names | www.slupsk.pl |
Alternative names | www.slupsk.pl |
Serial Number | 07674b0f5ffe352984e6e00cc6e98893 |
Valid from | Mon, 29 Sep 2025 00:00:00 UTC |
Valid until | Mon, 26 Oct 2026 23:59:59 UTC (expires in 1 year) |
Key | RSA 2048 bits (e 65537) |
Weak key (Debian) | No |
Issuer | RapidSSL TLS RSA CA G1
AIA: http://cacerts.rapidssl.com/RapidSSLTLSRSACAG1.crt |
Signature algorithm | SHA256withRSA |
Extended Validation | No |
Certificate Transparency | Yes (certificate) |
OCSP Must Staple | No |
Revocation information |
CRL, OCSP CRL: http://cdp.rapidssl.com/RapidSSLTLSRSACAG1.crl OCSP: http://status.rapidssl.com |
Revocation status | Good (not revoked)
CRL ERROR: IOException occurred |
DNS CAA | No (more info) |
Trusted | Yes
Mozilla Apple Android Java Windows |


![]() ![]() |
Certificate #2: RSA 2048 bits (SHA256withRSA)
No SNI





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

Protocols | |
TLS 1.3 | Yes |
TLS 1.2 | Yes* |
TLS 1.1 | No |
TLS 1.0 | No |
SSL 3 | No |
SSL 2 | No |
(*) Experimental: Server negotiated using No-SNI |

Cipher Suites | ||
![]() ![]() # TLS 1.3 (server has no preference)
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TLS_AES_128_GCM_SHA256 (0x1301 )
ECDH x25519 (eq. 3072 bits RSA) FS
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128 | |
TLS_AES_256_GCM_SHA384 (0x1302 )
ECDH x25519 (eq. 3072 bits RSA) FS
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256 | |
TLS_CHACHA20_POLY1305_SHA256 (0x1303 )
ECDH x25519 (eq. 3072 bits RSA) FS
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256 | |
![]() ![]() # TLS 1.2 (server has no preference)
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TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 (0x9e )
DH 2048 bits FS
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128 | |
TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (0xc02f )
ECDH secp521r1 (eq. 15360 bits RSA) FS
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128 | |
TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 (0x9f )
DH 2048 bits FS
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256 | |
TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (0xc030 )
ECDH secp521r1 (eq. 15360 bits RSA) FS
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256 | |
TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 (0xcca8 )
ECDH secp521r1 (eq. 15360 bits RSA) FS
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256 |

Handshake Simulation | |||
Android 4.4.2 | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp521r1 FS |
Android 5.0.0 | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 ECDH secp521r1 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_CHACHA20_POLY1305_SHA256 ECDH x25519 FS |
Android 8.0 | RSA 2048 (SHA256) | TLS 1.2 > h2 | TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 ECDH x25519 FS |
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 |
BingPreview Jan 2015 | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp521r1 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 | - | 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 | 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 | - | TLS 1.3 | TLS_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 11 / Win 7 R | RSA 2048 (SHA256) | TLS 1.2 | TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 DH 2048 FS |
IE 11 / Win 8.1 R | RSA 2048 (SHA256) | TLS 1.2 > http/1.1 | TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 DH 2048 FS |
IE 11 / Win Phone 8.1 R |
Server sent fatal alert: handshake_failure |
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IE 11 / Win Phone 8.1 Update R | RSA 2048 (SHA256) | TLS 1.2 > http/1.1 | TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 DH 2048 FS |
IE 11 / Win 10 R | RSA 2048 (SHA256) | TLS 1.2 > h2 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS |
Edge 15 / Win 10 R | RSA 2048 (SHA256) | TLS 1.2 > h2 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH x25519 FS |
Edge 16 / Win 10 R | RSA 2048 (SHA256) | TLS 1.2 > h2 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH x25519 FS |
Edge 18 / Win 10 R | RSA 2048 (SHA256) | TLS 1.2 > h2 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH x25519 FS |
Edge 13 / Win Phone 10 R | RSA 2048 (SHA256) | TLS 1.2 > h2 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS |
Java 8u161 | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 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 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp521r1 FS |
OpenSSL 1.0.2s R | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS |
OpenSSL 1.1.0k R | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH x25519 FS |
OpenSSL 1.1.1c R | - | TLS 1.3 | TLS_AES_256_GCM_SHA384 ECDH x25519 FS |
Safari 6 / iOS 6.0.1 |
Server sent fatal alert: handshake_failure |
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Safari 7 / iOS 7.1 R |
Server sent fatal alert: handshake_failure |
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Safari 7 / OS X 10.9 R |
Server sent fatal alert: handshake_failure |
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Safari 8 / iOS 8.4 R |
Server sent fatal alert: handshake_failure |
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Safari 8 / OS X 10.10 R |
Server sent fatal alert: handshake_failure |
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Safari 9 / iOS 9 R | RSA 2048 (SHA256) | TLS 1.2 > h2 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS |
Safari 9 / OS X 10.11 R | RSA 2048 (SHA256) | TLS 1.2 > h2 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS |
Safari 10 / iOS 10 R | RSA 2048 (SHA256) | TLS 1.2 > h2 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS |
Safari 10 / OS X 10.12 R | RSA 2048 (SHA256) | TLS 1.2 > h2 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 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 |
Apple ATS 9 / iOS 9 R | RSA 2048 (SHA256) | TLS 1.2 > h2 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS |
Yahoo Slurp Jan 2015 | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp384r1 FS |
YandexBot Jan 2015 | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp521r1 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) |
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 | Yes (with most browsers) ROBUST (more info) |
ALPN | Yes h2 http/1.1 |
NPN | Yes h2 http/1.1 |
Session resumption (caching) | Yes |
Session resumption (tickets) | No |
OCSP stapling | No |
Strict Transport Security (HSTS) | Yes
max-age=31536000; includeSubdomains; preload |
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 |
DH public server param (Ys) reuse | No |
ECDH public server param reuse | No |
Supported Named Groups | secp256r1, secp384r1, secp521r1, x25519, x448 (Server has no preference) |
SSL 2 handshake compatibility | No |
0-RTT enabled | No |

![]() ![]() |
1 https://www.slupsk.pl/
(HTTP/1.1 200 OK)
| 1 | |
Date | Fri, 03 Oct 2025 09:47:09 GMT | |
Content-Type | text/html; charset=UTF-8 | |
Transfer-Encoding | chunked | |
Connection | close | |
Vary | Accept-Encoding | |
xkey | ez-all c17039 c17206 c17196 c17218 c17217 c17211 c17208 c510 c511 c512 c15746 c16896 l739 l309 l401 l6974 l7000 l8468 l317 l416 l57 c55 l58 l303 l16062 l16429 c16652 l16576 l16464 l16465 l16466 l310 l311 c624 l632 c625 l633 c626 l634 c7258 l7263 l6850 l543 c8337 l8302 l7611 l15487 c16927 l16848 c15564 l15499 c15565 l15500 c15566 l15501 c15570 l15505 c15771 l15706 l6849 l315 l313 l8311 l8312 l8313 l8314 l8315 l8316 l8317 l8320 l8321 l8322 l314 l16715 l553 l304 l12808 l14889 l14941 c15012 l14942 c15013 l14943 l14944 l14979 c589 l595 c8597 l8552 c15774 l15709 l6846 l8686 l368 c368 l370 c590 l596 c7625 l7624 c7626 l7625 c7275 l7279 l358 c10193 l10131 l16885 c357 l359 l360 l361 l362 l664 l715 l7618 l8393 c8432 l8394 l8699 l603 c6774 l6785 l324 c7117 l7125 c720 l729 l319 l320 l323 l322 l326 l15689 l327 l329 l330 l331 l332 l15690 l333 l334 l336 l337 l395 l397 l396 l12456 c6773 l6784 l675 l15688 l7118 l398 l7656 l14262 l9961 l375 l12775 c374 l376 c375 l377 l378 l379 c7132 l7139 l363 l12370 l365 l366 c365 l367 l7600 l7608 l7602 l7603 c7606 l7605 l371 l372 l374 c8482 l8443 l383 l384 l385 l648 l387 c16986 l16907 c386 l388 l391 l631 l8293 l352 l353 l355 l349 l350 l351 l342 l13444 l343 l346 c708 l717 c709 l718 c711 l720 c721 l730 c7627 l7626 l7836 l338 c14967 l14897 l14898 c337 l339 c338 l340 c339 l341 c7682 l7682 l7496 c7497 l7497 c7498 l7498 l305 l6847 c6789 l6798 l402 l639 l640 l408 l7502 c7503 l7503 c7504 l7504 l407 l411 l412 l410 l6773 l414 c413 l415 l409 l7269 l306 l15910 l16114 l16122 l16132 l16134 l16136 l16138 l16140 l16142 l16144 l16146 l16148 l16150 l7628 l474 l476 l478 c8336 l8301 c8331 l8295 l479 l481 l16554 l418 l14416 l15609 l15611 l15617 l15669 l15670 l419 l420 l421 l422 l423 l424 l425 l426 l427 l428 l429 l430 l431 l432 l433 l434 l435 l436 l437 l438 l439 l440 l441 l442 l444 l445 l446 l447 l448 l449 l450 l451 l468 l469 l470 l471 l472 l473 l7928 l12648 l443 l453 l459 l462 l463 l8297 l454 l457 l461 l460 l458 l456 l467 l8296 l307 l12776 l484 l6904 c7217 l7222 l7463 l7586 l8865 l8913 l9473 c52 ct14 l54 pl2 p1 p2 p54 | |
X-Powered-By | eZ Platform v2 | |
Age | 83939 | |
Via | 1.1 varnish (Varnish/6.0) | |
Access-Control-Allow-Origin | * | |
Access-Control-Allow-Headers | DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type | |
Vary | Accept-Encoding | |
cache-control | public, s-maxage=600, stale-while-revalidate=300, stale-if-error=300 | |
Accept-Ranges | bytes | |
Server | Slupsk Server | |
X-Frame-Options | SAMEORIGIN | |
X-XSS-Protection | 1; mode=block | |
Strict-Transport-Security | max-age=31536000; includeSubdomains; preload |

Miscellaneous | |
Test date | Fri, 03 Oct 2025 09:46:55 UTC |
Test duration | 73.746 seconds |
HTTP status code | 200 |
HTTP server signature | Slupsk Server |
Server hostname | www.slupsk.pl |
SSL Report v2.4.1