SSL Report: owa.hs-emden-leer.de (139.13.108.100)
Assessed on:  Mon, 06 Oct 2025 14:23:56 UTC | Clear cache

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Summary
Overall Rating
B
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's certificate chain is incomplete. Grade capped to B.
This server's certificate is not trusted by Java trust store (see below for details).
This server supports TLS 1.0 and TLS 1.1. Grade capped to B. MORE INFO »
This server supports TLS 1.3.  MORE INFO »
Certificate #1: RSA 2048 bits (SHA256withRSA)
Server Key and Certificate #1
Subject legacy.hs-emden-leer.de
Fingerprint SHA256: a2cbebe15400b7f9cc613e8f12555b437f9b21fd81e395882e0d68ccb51c46cd
Pin SHA256: vLJ9h09CEiGv3OCfyOrA2hhLW/JkuyXKL9csDu33fiA=
Common names legacy.hs-emden-leer.de
Alternative names legacy.hs-emden-leer.de autodiscover.stud.hs-emden-leer.de autodiscover.hs-emden-leer.de cas.hs-el.de autodiscover.hs-el.de autodiscover.cas.hs-el.de stud.hs-emden-leer.de guest.hs-emden-leer.de hs-emden-leer.de owa.hs-emden-leer.de autodiscover.guest.hs-emden-leer.de
Serial Number 5d457e0f88a48ecd0d65e7a04726902b
Valid from Fri, 03 Oct 2025 07:31:42 UTC
Valid until Sat, 03 Oct 2026 07:31:42 UTC (expires in 11 months and 26 days)
Key RSA 2048 bits (e 65537)
Weak key (Debian) No
Issuer GEANT TLS RSA 1
AIA: http://crt.harica.gr/HARICA-GEANT-TLS-R1.cer
Signature algorithm SHA256withRSA
Extended Validation No
Certificate Transparency Yes (certificate)
OCSP Must Staple No
Revocation information CRL, OCSP
CRL: http://crl.harica.gr/HARICA-GEANT-TLS-R1.crl
OCSP: http://ocsp-tls.harica.gr
Revocation status Good (not revoked)
CRL ERROR: IOException occurred
DNS CAA No (more info)
Trusted Yes
Mozilla  Apple  Android  Java  Windows 


Additional Certificates (if supplied)
Certificates provided 1 (1936 bytes)
Chain issues Incomplete


Certification Paths
Path #1: Trusted
1 Sent by server legacy.hs-emden-leer.de
Fingerprint SHA256: a2cbebe15400b7f9cc613e8f12555b437f9b21fd81e395882e0d68ccb51c46cd
Pin SHA256: vLJ9h09CEiGv3OCfyOrA2hhLW/JkuyXKL9csDu33fiA=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
2 Extra download GEANT TLS RSA 1
Fingerprint SHA256: 5b678dc44095a52895b63b31f27227f4b36c3e347491bf2bfa691837a5fb8c79
Pin SHA256: ohOFOLq+zz8NAHyMvWszE2NvERcSyv197Lg8VHU8Rac=

RSA 3072 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
3 In trust store HARICA TLS RSA Root CA 2021   Self-signed
Fingerprint SHA256: d95d0e8eda79525bf9beb11b14d2100d3294985f0c62d9fabd9cd999eccb7b1d
Pin SHA256: aTyaprJFs7AmFjd1CGPq22wkihblLW9LyQyGu/MtcEI=

RSA 4096 bits (e 65537) / SHA256withRSA
Path #1: Trusted
1 Sent by server legacy.hs-emden-leer.de
Fingerprint SHA256: a2cbebe15400b7f9cc613e8f12555b437f9b21fd81e395882e0d68ccb51c46cd
Pin SHA256: vLJ9h09CEiGv3OCfyOrA2hhLW/JkuyXKL9csDu33fiA=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
2 Extra download GEANT TLS RSA 1
Fingerprint SHA256: 5b678dc44095a52895b63b31f27227f4b36c3e347491bf2bfa691837a5fb8c79
Pin SHA256: ohOFOLq+zz8NAHyMvWszE2NvERcSyv197Lg8VHU8Rac=

RSA 3072 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
3 In trust store HARICA TLS RSA Root CA 2021   Self-signed
Fingerprint SHA256: d95d0e8eda79525bf9beb11b14d2100d3294985f0c62d9fabd9cd999eccb7b1d
Pin SHA256: aTyaprJFs7AmFjd1CGPq22wkihblLW9LyQyGu/MtcEI=

RSA 4096 bits (e 65537) / SHA256withRSA
Path #1: Trusted
1 Sent by server legacy.hs-emden-leer.de
Fingerprint SHA256: a2cbebe15400b7f9cc613e8f12555b437f9b21fd81e395882e0d68ccb51c46cd
Pin SHA256: vLJ9h09CEiGv3OCfyOrA2hhLW/JkuyXKL9csDu33fiA=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
2 Extra download GEANT TLS RSA 1
Fingerprint SHA256: 5b678dc44095a52895b63b31f27227f4b36c3e347491bf2bfa691837a5fb8c79
Pin SHA256: ohOFOLq+zz8NAHyMvWszE2NvERcSyv197Lg8VHU8Rac=

RSA 3072 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
3 In trust store HARICA TLS RSA Root CA 2021   Self-signed
Fingerprint SHA256: d95d0e8eda79525bf9beb11b14d2100d3294985f0c62d9fabd9cd999eccb7b1d
Pin SHA256: aTyaprJFs7AmFjd1CGPq22wkihblLW9LyQyGu/MtcEI=

RSA 4096 bits (e 65537) / SHA256withRSA
Path #1: Not trusted (path does not chain to a trusted anchor)
1 Sent by server legacy.hs-emden-leer.de
Fingerprint SHA256: a2cbebe15400b7f9cc613e8f12555b437f9b21fd81e395882e0d68ccb51c46cd
Pin SHA256: vLJ9h09CEiGv3OCfyOrA2hhLW/JkuyXKL9csDu33fiA=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
2 Extra download GEANT TLS RSA 1
Fingerprint SHA256: 5b678dc44095a52895b63b31f27227f4b36c3e347491bf2bfa691837a5fb8c79
Pin SHA256: ohOFOLq+zz8NAHyMvWszE2NvERcSyv197Lg8VHU8Rac=

RSA 3072 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
3 Extra download
  Not in trust store
HARICA TLS RSA Root CA 2021   Self-signed
Fingerprint SHA256: d95d0e8eda79525bf9beb11b14d2100d3294985f0c62d9fabd9cd999eccb7b1d
Pin SHA256: aTyaprJFs7AmFjd1CGPq22wkihblLW9LyQyGu/MtcEI=

RSA 4096 bits (e 65537) / SHA256withRSA
Path #1: Trusted
1 Sent by server legacy.hs-emden-leer.de
Fingerprint SHA256: a2cbebe15400b7f9cc613e8f12555b437f9b21fd81e395882e0d68ccb51c46cd
Pin SHA256: vLJ9h09CEiGv3OCfyOrA2hhLW/JkuyXKL9csDu33fiA=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
2 Extra download GEANT TLS RSA 1
Fingerprint SHA256: 5b678dc44095a52895b63b31f27227f4b36c3e347491bf2bfa691837a5fb8c79
Pin SHA256: ohOFOLq+zz8NAHyMvWszE2NvERcSyv197Lg8VHU8Rac=

RSA 3072 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
3 In trust store HARICA TLS RSA Root CA 2021   Self-signed
Fingerprint SHA256: d95d0e8eda79525bf9beb11b14d2100d3294985f0c62d9fabd9cd999eccb7b1d
Pin SHA256: aTyaprJFs7AmFjd1CGPq22wkihblLW9LyQyGu/MtcEI=

RSA 4096 bits (e 65537) / SHA256withRSA

Click here to expand

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


Cipher Suites
# TLS 1.3 (suites in server-preferred order)
TLS_AES_256_GCM_SHA384 (0x1302)   ECDH secp256r1 (eq. 3072 bits RSA)   FS 256
TLS_CHACHA20_POLY1305_SHA256 (0x1303)   ECDH secp256r1 (eq. 3072 bits RSA)   FS 256P
TLS_AES_128_GCM_SHA256 (0x1301)   ECDH secp256r1 (eq. 3072 bits RSA)   FS 128
# TLS 1.2 (suites in server-preferred order)
TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (0xc030)   ECDH secp256r1 (eq. 3072 bits RSA)   FS 256
TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 (0x9f)   DH 2048 bits   FS 256
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 (0xc028)   ECDH secp256r1 (eq. 3072 bits RSA)   FS   WEAK 256
TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (0xc02f)   ECDH secp256r1 (eq. 3072 bits RSA)   FS 128
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA (0xc014)   ECDH secp256r1 (eq. 3072 bits RSA)   FS   WEAK 256
TLS_DHE_RSA_WITH_AES_256_CBC_SHA256 (0x6b)   DH 2048 bits   FS   WEAK 256
TLS_DHE_RSA_WITH_AES_256_CBC_SHA (0x39)   DH 2048 bits   FS   WEAK 256
TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 (0x9e)   DH 2048 bits   FS 128
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 (0xc027)   ECDH secp256r1 (eq. 3072 bits RSA)   FS   WEAK 128
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA (0xc013)   ECDH secp256r1 (eq. 3072 bits RSA)   FS   WEAK 128
TLS_DHE_RSA_WITH_AES_128_CBC_SHA256 (0x67)   DH 2048 bits   FS   WEAK 128
TLS_DHE_RSA_WITH_AES_128_CBC_SHA (0x33)   DH 2048 bits   FS   WEAK 128
# TLS 1.1 (suites in server-preferred order)
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA (0xc014)   ECDH secp256r1 (eq. 3072 bits RSA)   FS   WEAK 256
TLS_DHE_RSA_WITH_AES_256_CBC_SHA (0x39)   DH 2048 bits   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_128_CBC_SHA (0x33)   DH 2048 bits   FS   WEAK 128
# TLS 1.0 (suites in server-preferred order)
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA (0xc014)   ECDH secp256r1 (eq. 3072 bits RSA)   FS   WEAK 256
TLS_DHE_RSA_WITH_AES_256_CBC_SHA (0x39)   DH 2048 bits   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_128_CBC_SHA (0x33)   DH 2048 bits   FS   WEAK 128
(P) This server prefers ChaCha20 suites with clients that don't have AES-NI (e.g., Android devices)


Handshake Simulation
Android 2.3.7   No SNI 2 RSA 2048 (SHA256)   TLS 1.0 TLS_DHE_RSA_WITH_AES_128_CBC_SHA   DH 2048  FS
Android 4.0.4 RSA 2048 (SHA256)   TLS 1.0 TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA   ECDH secp256r1  FS
Android 4.1.1 RSA 2048 (SHA256)   TLS 1.0 TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA   ECDH secp256r1  FS
Android 4.2.2 RSA 2048 (SHA256)   TLS 1.0 TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA   ECDH secp256r1  FS
Android 4.3 RSA 2048 (SHA256)   TLS 1.0 TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA   ECDH secp256r1  FS
Android 4.4.2 RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
Android 5.0.0 RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  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 > http/1.1   TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
Android 8.0 RSA 2048 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
Android 8.1 -   TLS 1.3 TLS_CHACHA20_POLY1305_SHA256   ECDH secp256r1  FS
Android 9.0 -   TLS 1.3 TLS_CHACHA20_POLY1305_SHA256   ECDH secp256r1  FS
Baidu Jan 2015 RSA 2048 (SHA256)   TLS 1.0 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_GCM_SHA384   ECDH secp256r1  FS
Chrome 49 / XP SP3 RSA 2048 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Chrome 69 / Win 7  R RSA 2048 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
Chrome 70 / Win 10 -   TLS 1.3 TLS_AES_256_GCM_SHA384   ECDH secp256r1  FS
Chrome 80 / Win 10  R -   TLS 1.3 TLS_AES_256_GCM_SHA384   ECDH secp256r1  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 > http/1.1   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Firefox 49 / XP SP3 RSA 2048 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
Firefox 62 / Win 7  R RSA 2048 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
Firefox 73 / Win 10  R -   TLS 1.3 TLS_AES_256_GCM_SHA384   ECDH secp256r1  FS
Googlebot Feb 2018 RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
IE 7 / Vista RSA 2048 (SHA256)   TLS 1.0 TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA   ECDH secp256r1  FS
IE 8 / XP   No FS 1   No SNI 2 Server sent fatal alert: handshake_failure
IE 8-10 / Win 7  R RSA 2048 (SHA256)   TLS 1.0 TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA   ECDH secp256r1  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 10 / Win Phone 8.0 RSA 2048 (SHA256)   TLS 1.0 TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA   ECDH secp256r1  FS
IE 11 / Win Phone 8.1  R RSA 2048 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA   ECDH secp256r1  FS
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 > http/1.1   TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
Edge 15 / Win 10  R RSA 2048 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
Edge 16 / Win 10  R RSA 2048 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
Edge 18 / Win 10  R RSA 2048 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
Edge 13 / Win Phone 10  R RSA 2048 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
Java 6u45   No SNI 2 Client does not support DH parameters > 1024 bits
RSA 2048 (SHA256)   |  TLS 1.0  |  TLS_DHE_RSA_WITH_AES_128_CBC_SHA  |  DH 2048
Java 7u25 RSA 2048 (SHA256)   TLS 1.0 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA   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_256_GCM_SHA384   ECDH secp256r1  FS
Java 12.0.1 -   TLS 1.3 TLS_AES_256_GCM_SHA384   ECDH secp256r1  FS
OpenSSL 0.9.8y RSA 2048 (SHA256)   TLS 1.0 TLS_DHE_RSA_WITH_AES_256_CBC_SHA   DH 2048  FS
OpenSSL 1.0.1l  R RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  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 secp256r1  FS
OpenSSL 1.1.1c  R -   TLS 1.3 TLS_AES_256_GCM_SHA384   ECDH secp256r1  FS
Safari 5.1.9 / OS X 10.6.8 RSA 2048 (SHA256)   TLS 1.0 TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA   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 6.0.4 / OS X 10.8.4  R RSA 2048 (SHA256)   TLS 1.0 TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA   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 > http/1.1   TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
Safari 9 / OS X 10.11  R RSA 2048 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
Safari 10 / iOS 10  R RSA 2048 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
Safari 10 / OS X 10.12  R RSA 2048 (SHA256)   TLS 1.2 > http/1.1   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 secp256r1  FS
Safari 12.1.1 / iOS 12.3.1  R -   TLS 1.3 TLS_CHACHA20_POLY1305_SHA256   ECDH secp256r1  FS
Apple ATS 9 / iOS 9  R RSA 2048 (SHA256)   TLS 1.2 > http/1.1   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 secp256r1  FS
YandexBot Jan 2015 RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
# Not simulated clients (Protocol mismatch)
IE 6 / XP   No FS 1   No SNI 2 Protocol mismatch (not simulated)

Click here to expand

(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 Yes
Insecure Client-Initiated Renegotiation No
BEAST attack Not mitigated server-side (more info)   TLS 1.0: 0xc014
POODLE (SSLv3) No, SSL 3 not supported (more info)
POODLE (TLS) No (more info)
Zombie POODLE No (more info)   TLS 1.2 : 0xc014
GOLDENDOODLE No (more info)   TLS 1.2 : 0xc014
OpenSSL 0-Length No (more info)   TLS 1.2 : 0xc014
Sleeping POODLE No (more info)   TLS 1.2 : 0xc014
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   http/1.1
NPN No
Session resumption (caching) No (IDs empty)
Session resumption (tickets) No
OCSP stapling No
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 No
DH public server param (Ys) reuse No
ECDH public server param reuse No
Supported Named Groups secp256r1
SSL 2 handshake compatibility Yes
0-RTT enabled No


HTTP Requests
1 https://owa.hs-emden-leer.de/  (HTTP/1.1 302 Found)
1
Content-Type text/html; charset=utf-8
Location https://owa.hs-emden-leer.de/owa/auth/logon.aspx?url=https%3a%2f%2fowa.hs-emden-leer.de%2fowa&reason=0
Server Microsoft-IIS/10.0
request-id 847a1426-6b76-4a6f-86c2-e8f8566bba0d
X-OWA-Version 15.1.2507.44
X-Powered-By ASP.NET
X-FEServer EXSU2
Date Mon, 06 Oct 2025 14:22:09 GMT
Connection close
Content-Length 223
2 https://owa.hs-emden-leer.de/owa/auth/logon.aspx?url=https%3a%2f%2fowa.hs-emden-leer.de%2fowa&reason=0  (HTTP/1.1 200 OK)
2
Cache-Control no-cache, no-store
Pragma no-cache
Content-Type text/html; charset=utf-8
Expires -1
Server Microsoft-IIS/10.0
request-id be8ddff5-751a-4c2a-af54-b0af3de4f407
X-Frame-Options SAMEORIGIN
X-AspNet-Version 4.0.30319
X-Powered-By ASP.NET
Date Mon, 06 Oct 2025 14:22:11 GMT
Connection close
Content-Length 27983


Miscellaneous
Test date Mon, 06 Oct 2025 14:21:57 UTC
Test duration 119.654 seconds
HTTP status code 200
HTTP server signature Microsoft-IIS/10.0
Server hostname imap.hs-el.de


SSL Report v2.4.1