SSL Report:
conf.underworld.fr
(89.89.252.53)
Assessed on: Sat, 14 Jun 2025 14:29:35 UTC
| Clear cache
Summary
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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.
Server sent invalid/disabled HSTS policy. See below for further information. MORE INFO »
This site works only in browsers with SNI support.
This server supports TLS 1.3. MORE INFO »
Certificate #1: RSA 4096 bits (SHA256withRSA)

Server Key and Certificate #1
|
|
Subject |
conf.underworld.fr
Fingerprint SHA256: d6f246681a907e730139f9cb2bb25282d514a6720d931c834935b9d5f0eb0271 Pin SHA256: Glo3TqGpYJazKwahX62G+BoD3LY9ZR/bINS6+xdb3Fo= |
Common names | conf.underworld.fr |
Alternative names | conf.underworld.fr |
Serial Number | 058aeeeb1c5c43d88aab8117dc2a657319a9 |
Valid from | Fri, 25 Apr 2025 12:25:53 UTC |
Valid until | Thu, 24 Jul 2025 12:25:52 UTC (expires in 1 month and 9 days) |
Key | RSA 4096 bits (e 65537) |
Weak key (Debian) | No |
Issuer | R10
AIA: http://r10.i.lencr.org/ |
Signature algorithm | SHA256withRSA |
Extended Validation | No |
Certificate Transparency | Yes (certificate) |
OCSP Must Staple | No |
Revocation information |
CRL, OCSP CRL: http://r10.c.lencr.org/42.crl OCSP: http://r10.o.lencr.org |
Revocation status | Good (not revoked) |
DNS CAA | No (more info) |
Trusted | Yes
Mozilla Apple Android Java Windows |


![]() ![]() |
Certificate #2: RSA 4096 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 (suites in server-preferred order)
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||
TLS_AES_256_GCM_SHA384 (0x1302 )
ECDH secp384r1 (eq. 7680 bits RSA) FS
|
256 | |
TLS_CHACHA20_POLY1305_SHA256 (0x1303 )
ECDH secp384r1 (eq. 7680 bits RSA) FS
|
256 | |
TLS_AES_128_GCM_SHA256 (0x1301 )
ECDH secp384r1 (eq. 7680 bits RSA) FS
|
128 | |
![]() ![]() # TLS 1.2 (suites in server-preferred order)
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TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (0xc030 )
ECDH secp384r1 (eq. 7680 bits RSA) FS
|
256 | |
TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 (0x9f )
DH 4096 bits FS
|
256 | |
TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 (0xcca8 )
ECDH secp384r1 (eq. 7680 bits RSA) FS
|
256 | |
TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256 (0xccaa )
DH 4096 bits FS
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256 | |
TLS_DHE_RSA_WITH_AES_256_CCM_8 (0xc0a3 )
DH 4096 bits FS
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256 | |
TLS_DHE_RSA_WITH_AES_256_CCM (0xc09f )
DH 4096 bits FS
|
256 | |
TLS_ECDHE_RSA_WITH_ARIA_256_GCM_SHA384 (0xc061 )
ECDH secp384r1 (eq. 7680 bits RSA) FS
|
256 | |
TLS_DHE_RSA_WITH_ARIA_256_GCM_SHA384 (0xc053 )
DH 4096 bits FS
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256 | |
TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (0xc02f )
ECDH secp384r1 (eq. 7680 bits RSA) FS
|
128 | |
TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 (0x9e )
DH 4096 bits FS
|
128 | |
TLS_DHE_RSA_WITH_AES_128_CCM_8 (0xc0a2 )
DH 4096 bits FS
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128 | |
TLS_DHE_RSA_WITH_AES_128_CCM (0xc09e )
DH 4096 bits FS
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128 | |
TLS_ECDHE_RSA_WITH_ARIA_128_GCM_SHA256 (0xc060 )
ECDH secp384r1 (eq. 7680 bits RSA) FS
|
128 | |
TLS_DHE_RSA_WITH_ARIA_128_GCM_SHA256 (0xc052 )
DH 4096 bits FS
|
128 | |
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 (0xc028 )
ECDH secp384r1 (eq. 7680 bits RSA) FS
WEAK
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256 | |
TLS_DHE_RSA_WITH_AES_256_CBC_SHA256 (0x6b )
DH 4096 bits FS
WEAK
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256 | |
TLS_ECDHE_RSA_WITH_CAMELLIA_256_CBC_SHA384 (0xc077 )
ECDH secp384r1 (eq. 7680 bits RSA) FS
WEAK
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256 | |
TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256 (0xc4 )
DH 4096 bits FS
WEAK
|
256 | |
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 (0xc027 )
ECDH secp384r1 (eq. 7680 bits RSA) FS
WEAK
|
128 | |
TLS_DHE_RSA_WITH_AES_128_CBC_SHA256 (0x67 )
DH 4096 bits FS
WEAK
|
128 | |
TLS_ECDHE_RSA_WITH_CAMELLIA_128_CBC_SHA256 (0xc076 )
ECDH secp384r1 (eq. 7680 bits RSA) FS
WEAK
|
128 | |
TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256 (0xbe )
DH 4096 bits FS
WEAK
|
128 | |
TLS_RSA_WITH_AES_256_GCM_SHA384 (0x9d )
WEAK
|
256 | |
TLS_RSA_WITH_AES_256_CCM_8 (0xc0a1 )
WEAK
|
256 | |
TLS_RSA_WITH_AES_256_CCM (0xc09d )
WEAK
|
256 | |
TLS_RSA_WITH_ARIA_256_GCM_SHA384 (0xc051 )
WEAK
|
256 | |
TLS_RSA_WITH_AES_128_GCM_SHA256 (0x9c )
WEAK
|
128 | |
TLS_RSA_WITH_AES_128_CCM_8 (0xc0a0 )
WEAK
|
128 | |
TLS_RSA_WITH_AES_128_CCM (0xc09c )
WEAK
|
128 | |
TLS_RSA_WITH_ARIA_128_GCM_SHA256 (0xc050 )
WEAK
|
128 | |
TLS_RSA_WITH_AES_256_CBC_SHA256 (0x3d )
WEAK
|
256 | |
TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256 (0xc0 )
WEAK
|
256 | |
TLS_RSA_WITH_AES_128_CBC_SHA256 (0x3c )
WEAK
|
128 | |
TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256 (0xba )
WEAK
|
128 |

Handshake Simulation | |||
Android 4.4.2 | RSA 4096 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp384r1 FS |
Android 5.0.0 | RSA 4096 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 ECDH secp384r1 FS |
Android 6.0 | RSA 4096 (SHA256) | TLS 1.2 > http/1.1 | TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 ECDH secp384r1 FS |
Android 7.0 | RSA 4096 (SHA256) | TLS 1.2 > h2 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp384r1 FS |
Android 8.0 | RSA 4096 (SHA256) | TLS 1.2 > h2 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp384r1 FS |
Android 8.1 | - | TLS 1.3 | TLS_AES_256_GCM_SHA384 ECDH secp384r1 FS |
Android 9.0 | - | TLS 1.3 | TLS_AES_256_GCM_SHA384 ECDH secp384r1 FS |
BingPreview Jan 2015 | RSA 4096 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp384r1 FS |
Chrome 49 / XP SP3 | RSA 4096 (SHA256) | TLS 1.2 > h2 | TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 ECDH secp384r1 FS |
Chrome 69 / Win 7 R | RSA 4096 (SHA256) | TLS 1.2 > h2 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp384r1 FS |
Chrome 70 / Win 10 | - | TLS 1.3 | TLS_AES_256_GCM_SHA384 ECDH secp384r1 FS |
Chrome 80 / Win 10 R | - | TLS 1.3 | TLS_AES_256_GCM_SHA384 ECDH secp384r1 FS |
Firefox 31.3.0 ESR / Win 7 | RSA 4096 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 ECDH secp384r1 FS |
Firefox 47 / Win 7 R | RSA 4096 (SHA256) | TLS 1.2 > h2 | TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 ECDH secp384r1 FS |
Firefox 49 / XP SP3 | RSA 4096 (SHA256) | TLS 1.2 > h2 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp384r1 FS |
Firefox 62 / Win 7 R | RSA 4096 (SHA256) | TLS 1.2 > h2 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp384r1 FS |
Firefox 73 / Win 10 R | - | TLS 1.3 | TLS_AES_256_GCM_SHA384 ECDH secp384r1 FS |
Googlebot Feb 2018 | RSA 4096 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp384r1 FS |
IE 11 / Win 7 R | RSA 4096 (SHA256) | TLS 1.2 | TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 DH 4096 FS |
IE 11 / Win 8.1 R | RSA 4096 (SHA256) | TLS 1.2 > http/1.1 | TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 DH 4096 FS |
IE 11 / Win Phone 8.1 R | RSA 4096 (SHA256) | TLS 1.2 > http/1.1 | TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 ECDH secp384r1 FS |
IE 11 / Win Phone 8.1 Update R | RSA 4096 (SHA256) | TLS 1.2 > http/1.1 | TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 DH 4096 FS |
IE 11 / Win 10 R | RSA 4096 (SHA256) | TLS 1.2 > h2 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp384r1 FS |
Edge 15 / Win 10 R | RSA 4096 (SHA256) | TLS 1.2 > h2 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp384r1 FS |
Edge 16 / Win 10 R | RSA 4096 (SHA256) | TLS 1.2 > h2 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp384r1 FS |
Edge 18 / Win 10 R | RSA 4096 (SHA256) | TLS 1.2 > h2 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp384r1 FS |
Edge 13 / Win Phone 10 R | RSA 4096 (SHA256) | TLS 1.2 > h2 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp384r1 FS |
Java 8u161 | RSA 4096 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp384r1 FS |
Java 11.0.3 | - | TLS 1.3 | TLS_AES_256_GCM_SHA384 ECDH secp384r1 FS |
Java 12.0.1 | - | TLS 1.3 | TLS_AES_256_GCM_SHA384 ECDH secp384r1 FS |
OpenSSL 1.0.1l R | RSA 4096 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp384r1 FS |
OpenSSL 1.0.2s R | RSA 4096 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp384r1 FS |
OpenSSL 1.1.0k R | RSA 4096 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp384r1 FS |
OpenSSL 1.1.1c R | - | TLS 1.3 | TLS_AES_256_GCM_SHA384 ECDH secp384r1 FS |
Safari 6 / iOS 6.0.1 | RSA 4096 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 ECDH secp384r1 FS |
Safari 7 / iOS 7.1 R | RSA 4096 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 ECDH secp384r1 FS |
Safari 7 / OS X 10.9 R | RSA 4096 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 ECDH secp384r1 FS |
Safari 8 / iOS 8.4 R | RSA 4096 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 ECDH secp384r1 FS |
Safari 8 / OS X 10.10 R | RSA 4096 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 ECDH secp384r1 FS |
Safari 9 / iOS 9 R | RSA 4096 (SHA256) | TLS 1.2 > h2 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp384r1 FS |
Safari 9 / OS X 10.11 R | RSA 4096 (SHA256) | TLS 1.2 > h2 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp384r1 FS |
Safari 10 / iOS 10 R | RSA 4096 (SHA256) | TLS 1.2 > h2 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp384r1 FS |
Safari 10 / OS X 10.12 R | RSA 4096 (SHA256) | TLS 1.2 > h2 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp384r1 FS |
Safari 12.1.2 / MacOS 10.14.6 Beta R | - | TLS 1.3 | TLS_AES_256_GCM_SHA384 ECDH secp384r1 FS |
Safari 12.1.1 / iOS 12.3.1 R | - | TLS 1.3 | TLS_AES_256_GCM_SHA384 ECDH secp384r1 FS |
Apple ATS 9 / iOS 9 R | RSA 4096 (SHA256) | TLS 1.2 > h2 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp384r1 FS |
Yahoo Slurp Jan 2015 | RSA 4096 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp384r1 FS |
YandexBot Jan 2015 | RSA 4096 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp384r1 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) |
||
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
|
GOLDENDOODLE | No (more info)
TLS 1.2 : 0xc027
|
OpenSSL 0-Length | No (more info)
TLS 1.2 : 0xc027
|
Sleeping POODLE | No (more info)
TLS 1.2 : 0xc027
|
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 | No |
Session resumption (caching) | Yes |
Session resumption (tickets) | No |
OCSP stapling | Yes |
Strict Transport Security (HSTS) | Invalid
Server provided more than one HSTS header
|
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 | secp384r1 |
SSL 2 handshake compatibility | No |
0-RTT enabled | No |

![]() ![]() |
1 https://conf.underworld.fr/
(HTTP/1.1 200 OK)
| 1 | |
Server | nginx | |
Date | Sat, 14 Jun 2025 14:27:28 GMT | |
Content-Type | text/html | |
Transfer-Encoding | chunked | |
Connection | close | |
Vary | Accept-Encoding | |
Vary | Accept-Encoding | |
Strict-Transport-Security | max-age=63072000 | |
Referrer-Policy | strict-origin-when-cross-origin | |
X-Content-Type-Options | nosniff | |
Content-Security-Policy | frame-ancestors 'self' https://*.underworld.fr | |
Strict-Transport-Security | max-age=15768000; includeSubDomains; preload; |

Miscellaneous | |
Test date | Sat, 14 Jun 2025 14:27:17 UTC |
Test duration | 138.956 seconds |
HTTP status code | 200 |
HTTP server signature | nginx |
Server hostname | vfc69-h03-89-89-252-53.dsl.sta.abo.bbox.fr |
SSL Report v2.4.0