SSL Report:
mail.rhdn.de
(128.140.52.145)
Assessed on: Wed, 22 Oct 2025 22:55:28 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.
Server sent invalid/disabled HSTS policy. See below for further information. MORE INFO »
This server supports TLS 1.3. MORE INFO »
Certificate #1: RSA 4096 bits (SHA256withRSA)
|
Server Key and Certificate #1
|
|
| Subject |
mail.rhdn.de
Fingerprint SHA256: c9856a164777f3be1990405a914a252779265d500c4481591812706bc160f715 Pin SHA256: jsJAlllmv1kBlD7HSpCe2R2vhhuh8s/h30RLarvyFFI= |
| Common names | mail.rhdn.de |
| Alternative names | autoconfig.rhdn.de autodiscover.rhdn.de mail.rhdn.de |
| Serial Number | 05d94b78bee7b65a7335454af7ae62d7dbf0 |
| Valid from | Sat, 23 Aug 2025 07:34:31 UTC |
| Valid until | Fri, 21 Nov 2025 07:34:30 UTC (expires in 29 days, 5 hours) |
| Key | RSA 4096 bits (e 65537) |
| Weak key (Debian) | No |
| Issuer | R12
AIA: http://r12.i.lencr.org/ |
| Signature algorithm | SHA256withRSA |
| Extended Validation | No |
| Certificate Transparency | Yes (certificate) |
| OCSP Must Staple | No |
| Revocation information |
CRL CRL: http://r12.c.lencr.org/113.crl |
| Revocation status | Good (not revoked) |
| DNS CAA | No (more info) |
| Trusted | Yes
Mozilla Apple Android Java Windows |
Certification Paths |
Configuration
| Protocols | |
| TLS 1.3 | Yes |
| TLS 1.2 | No |
| TLS 1.1 | No |
| TLS 1.0 | No |
| SSL 3 | No |
| SSL 2 | No |
| Cipher Suites | ||
|
# TLS 1.3 (server has no preference)
|
||
TLS_AES_128_GCM_SHA256 (0x1301)
ECDH x25519 (eq. 3072 bits RSA) FS
|
128 | |
TLS_AES_256_GCM_SHA384 (0x1302)
ECDH x25519 (eq. 3072 bits RSA) FS
|
256 | |
TLS_CHACHA20_POLY1305_SHA256 (0x1303)
ECDH x25519 (eq. 3072 bits RSA) FS
|
256 | |
| Handshake Simulation | |||
| 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 |
| Chrome 69 / Win 7 R |
Server sent fatal alert: protocol_version |
||
| 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 62 / Win 7 R |
Server sent fatal alert: protocol_version |
||
| Firefox 73 / Win 10 R | - | TLS 1.3 | TLS_AES_128_GCM_SHA256 ECDH x25519 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 1.1.0k R |
Server sent fatal alert: protocol_version |
||
| OpenSSL 1.1.1c R | - | TLS 1.3 | TLS_AES_256_GCM_SHA384 ECDH x25519 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 |
|
# 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) |
||
| Android 4.4.2 |
Protocol mismatch (not simulated) |
||
| Android 5.0.0 |
Protocol mismatch (not simulated) |
||
| Android 6.0 |
Protocol mismatch (not simulated) |
||
| Android 7.0 |
Protocol mismatch (not simulated) |
||
| Android 8.0 |
Protocol mismatch (not simulated) |
||
| Baidu Jan 2015 |
Protocol mismatch (not simulated) |
||
| BingPreview Jan 2015 |
Protocol mismatch (not simulated) |
||
| Chrome 49 / XP SP3 |
Protocol mismatch (not simulated) |
||
| Firefox 31.3.0 ESR / Win 7 |
Protocol mismatch (not simulated) |
||
| Firefox 47 / Win 7 R |
Protocol mismatch (not simulated) |
||
| Firefox 49 / XP SP3 |
Protocol mismatch (not simulated) |
||
| Googlebot Feb 2018 |
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 11 / Win 7 R |
Protocol mismatch (not simulated) |
||
| IE 11 / Win 8.1 R |
Protocol mismatch (not simulated) |
||
| IE 10 / Win Phone 8.0 |
Protocol mismatch (not simulated) |
||
| IE 11 / Win Phone 8.1 R |
Protocol mismatch (not simulated) |
||
| IE 11 / Win Phone 8.1 Update R |
Protocol mismatch (not simulated) |
||
| IE 11 / Win 10 R |
Protocol mismatch (not simulated) |
||
| Edge 15 / Win 10 R |
Protocol mismatch (not simulated) |
||
| Edge 16 / Win 10 R |
Protocol mismatch (not simulated) |
||
| Edge 18 / Win 10 R |
Protocol mismatch (not simulated) |
||
| Edge 13 / Win Phone 10 R |
Protocol mismatch (not simulated) |
||
| Java 6u45 No SNI 2 |
Protocol mismatch (not simulated) |
||
| Java 7u25 |
Protocol mismatch (not simulated) |
||
| Java 8u161 |
Protocol mismatch (not simulated) |
||
| OpenSSL 0.9.8y |
Protocol mismatch (not simulated) |
||
| OpenSSL 1.0.1l R |
Protocol mismatch (not simulated) |
||
| OpenSSL 1.0.2s R |
Protocol mismatch (not simulated) |
||
| Safari 5.1.9 / OS X 10.6.8 |
Protocol mismatch (not simulated) |
||
| Safari 6 / iOS 6.0.1 |
Protocol mismatch (not simulated) |
||
| Safari 6.0.4 / OS X 10.8.4 R |
Protocol mismatch (not simulated) |
||
| Safari 7 / iOS 7.1 R |
Protocol mismatch (not simulated) |
||
| Safari 7 / OS X 10.9 R |
Protocol mismatch (not simulated) |
||
| Safari 8 / iOS 8.4 R |
Protocol mismatch (not simulated) |
||
| Safari 8 / OS X 10.10 R |
Protocol mismatch (not simulated) |
||
| Safari 9 / iOS 9 R |
Protocol mismatch (not simulated) |
||
| Safari 9 / OS X 10.11 R |
Protocol mismatch (not simulated) |
||
| Safari 10 / iOS 10 R |
Protocol mismatch (not simulated) |
||
| Safari 10 / OS X 10.12 R |
Protocol mismatch (not simulated) |
||
| Apple ATS 9 / iOS 9 R |
Protocol mismatch (not simulated) |
||
| Yahoo Slurp Jan 2015 |
Protocol mismatch (not simulated) |
||
| YandexBot Jan 2015 |
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 | |
| ROBOT (vulnerability) | No (more info) |
| Forward Secrecy | Yes (with most browsers) ROBUST (more info) |
| ALPN | Yes h2 http/1.1 |
| Session resumption (tickets) | No |
| OCSP stapling | No |
| 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) |
| Supported Named Groups | x25519, secp256r1, secp384r1 (server preferred order) |
| SSL 2 handshake compatibility | No |
| 0-RTT enabled | No |
|
HTTP Requests
|
|
1 https://mail.rhdn.de/
(HTTP/1.1 200 OK)
| 1 | |
| Server | nginx/1.22.1 | |
| Date | Wed, 22 Oct 2025 22:55:08 GMT | |
| Content-Type | text/html; charset=utf-8 | |
| Transfer-Encoding | chunked | |
| Connection | close | |
| Vary | Accept-Encoding | |
| Set-Cookie | MCSESSID=90567e5955e3442f08e0ce39fcfad371; path=/; secure; HttpOnly; SameSite=Lax | |
| Expires | Thu, 19 Nov 1981 08:52:00 GMT | |
| Cache-Control | no-store, no-cache, must-revalidate | |
| Pragma | no-cache | |
| Strict-Transport-Security | max-age=15768000; | |
| X-Content-Type-Options | nosniff | |
| X-XSS-Protection | 1; mode=block | |
| X-Robots-Tag | none | |
| X-Download-Options | noopen | |
| X-Frame-Options | SAMEORIGIN | |
| X-Permitted-Cross-Domain-Policies | none | |
| Referrer-Policy | strict-origin | |
| Strict-Transport-Security | max-age=63072000 | |
| X-XSS-Protection | 1; mode=block | |
| X-Content-Type-Options | nosniff | |
| Referrer-Policy | no-referrer-when-downgrade | |
| Content-Security-Policy | default-src 'self' http: https: ws: wss: data: blob: 'unsafe-inline'; frame-ancestors 'self'; | |
| Permissions-Policy | interest-cohort=() | |
| Strict-Transport-Security | max-age=31536000; includeSubDomains | |
| Miscellaneous | |
| Test date | Wed, 22 Oct 2025 22:54:59 UTC |
| Test duration | 29.160 seconds |
| HTTP status code | 200 |
| HTTP server signature | nginx/1.22.1 |
| Server hostname | mail.rhdn.de |
SSL Report v2.4.1