SSL Report: www.uni-leipzig.de (139.18.16.133)
Assessed on:  Fri, 28 Nov 2025 16:13:19 UTC | Clear cache
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Summary
Overall Rating
A-
0
20
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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's certificate is not trusted by Java trust store (see below for details).
This server supports TLS 1.3.  MORE INFO »
Certificate #1: EC 384 bits (SHA384withECDSA)
Server Key and Certificate #1
Subject www.uni-leipzig.de
Fingerprint SHA256: 477a23d5ac58fadbe74718289c9a70f995a995c37d3eaf83a02467f9a2f4a8cc
Pin SHA256: otqoN6NiHTfKgNZZSU/hY29/+Ac5IYS46R7oiPAq3ig=
Common names www.uni-leipzig.de
Alternative names www.uni-leipzig.de gkr.uni-leipzig.de www.bbz.uni-leipzig.de www.sozphil.uni-leipzig.de www.zls.uni-leipzig.de www.sikt.uni-leipzig.de chemie.uni-leipzig.de www.humankind.uni-leipzig.de spowi.uni-leipzig.de www.chemie.uni-leipzig.de www.ga.uni-leipzig.de www.kustodie.uni-leipzig.de www.leipzig-studieren.de www.mephisto976.de stksachs.uni-leipzig.de www.vetmed.uni-leipzig.de physes.uni-leipzig.de schulung.uni-leipzig.de jura.uni-leipzig.de www.urz.uni-leipzig.de deutsches-literaturinstitut.de humankind.uni-leipzig.de mathcs.uni-leipzig.de www.mathcs.uni-leipzig.de www.sprachenzentrum.uni-leipzig.de mephisto976.de www.gkr.uni-leipzig.de dev.intranet.uni-leipzig.de unimusik.uni-leipzig.de sikt.uni-leipzig.de magazin.uni-leipzig.de sozphil.uni-leipzig.de frz.uni-leipzig.de www.frages.uni-leipzig.de www.erzwiss.uni-leipzig.de theol.uni-leipzig.de www.spowi.uni-leipzig.de recentglobe.uni-leipzig.de ga.uni-leipzig.de www.theol.uni-leipzig.de www.recentglobe.uni-leipzig.de prod.uni-leipzig.de www.zfh.uni-leipzig.de www.wifa.uni-leipzig.de www.physes.uni-leipzig.de philol.uni-leipzig.de www.unimusik.uni-leipzig.de zfh.uni-leipzig.de www.philol.uni-leipzig.de www.magazin.uni-leipzig.de www.jura.uni-leipzig.de sprachenzentrum.uni-leipzig.de www.lw.uni-leipzig.de zls.uni-leipzig.de bbz.uni-leipzig.de www.stksachs.uni-leipzig.de zmp.uni-leipzig.de leipzig-studieren.de wifa.uni-leipzig.de erzwiss.uni-leipzig.de uni-leipzig.de urz.uni-leipzig.de vetmed.uni-leipzig.de frages.uni-leipzig.de www.zmp.uni-leipzig.de www.frz.uni-leipzig.de www.deutsches-literaturinstitut.de lw.uni-leipzig.de
Serial Number 2adf283ba407ee6207667669cf65894e
Valid from Tue, 11 Nov 2025 15:01:18 UTC
Valid until Wed, 11 Nov 2026 15:01:18 UTC (expires in 11 months and 13 days)
Key EC 384 bits
Weak key (Debian) No
Issuer GEANT TLS ECC 1
AIA: http://crt.harica.gr/HARICA-GEANT-TLS-E1.cer
Signature algorithm SHA384withECDSA
Extended Validation No
Certificate Transparency Yes (certificate)
OCSP Must Staple No
Revocation information CRL, OCSP
CRL: http://crl.harica.gr/HARICA-GEANT-TLS-E1.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 3 (4339 bytes)
Chain issues Contains anchor
#2
Subject GEANT TLS ECC 1
Fingerprint SHA256: 6cdf0ba1711e856d228ba00ca04c5c1c3d79944c037b713b155a4ee4b47ec53c
Pin SHA256: ejFKBydz15Z1N1P+b5wA1BLK28O3vLnf7cUQW4rq3+o=
Valid until Sat, 31 Dec 2039 11:14:20 UTC (expires in 14 years and 1 month)
Key EC 384 bits
Issuer HARICA TLS ECC Root CA 2021
Signature algorithm SHA384withECDSA
#3
Subject HARICA TLS ECC Root CA 2021   In trust store
Fingerprint SHA256: 3f99cc474acfce4dfed58794665e478d1547739f2e780f1bb4ca9b133097d401
Pin SHA256: /HhDAOyN9NPRutdjg1GCkY1Sqf8COL32laHNm9uYMhw=
Valid until Mon, 13 Feb 2045 11:01:09 UTC (expires in 19 years and 2 months)
Key EC 384 bits
Issuer HARICA TLS ECC Root CA 2021   Self-signed
Signature algorithm SHA384withECDSA


Certification Paths
Path #1: Trusted
1 Sent by server www.uni-leipzig.de
Fingerprint SHA256: 477a23d5ac58fadbe74718289c9a70f995a995c37d3eaf83a02467f9a2f4a8cc
Pin SHA256: otqoN6NiHTfKgNZZSU/hY29/+Ac5IYS46R7oiPAq3ig=
EC 384 bits / SHA384withECDSA
CRL ERROR: IOException occurred
2 Sent by server GEANT TLS ECC 1
Fingerprint SHA256: 6cdf0ba1711e856d228ba00ca04c5c1c3d79944c037b713b155a4ee4b47ec53c
Pin SHA256: ejFKBydz15Z1N1P+b5wA1BLK28O3vLnf7cUQW4rq3+o=
EC 384 bits / SHA384withECDSA
CRL ERROR: IOException occurred
3 Sent by server
In trust store 		HARICA TLS ECC Root CA 2021   Self-signed
Fingerprint SHA256: 3f99cc474acfce4dfed58794665e478d1547739f2e780f1bb4ca9b133097d401
Pin SHA256: /HhDAOyN9NPRutdjg1GCkY1Sqf8COL32laHNm9uYMhw=
EC 384 bits / SHA384withECDSA
Path #1: Trusted
1 Sent by server www.uni-leipzig.de
Fingerprint SHA256: 477a23d5ac58fadbe74718289c9a70f995a995c37d3eaf83a02467f9a2f4a8cc
Pin SHA256: otqoN6NiHTfKgNZZSU/hY29/+Ac5IYS46R7oiPAq3ig=
EC 384 bits / SHA384withECDSA
CRL ERROR: IOException occurred
2 Sent by server GEANT TLS ECC 1
Fingerprint SHA256: 6cdf0ba1711e856d228ba00ca04c5c1c3d79944c037b713b155a4ee4b47ec53c
Pin SHA256: ejFKBydz15Z1N1P+b5wA1BLK28O3vLnf7cUQW4rq3+o=
EC 384 bits / SHA384withECDSA
CRL ERROR: IOException occurred
3 Sent by server
In trust store 		HARICA TLS ECC Root CA 2021   Self-signed
Fingerprint SHA256: 3f99cc474acfce4dfed58794665e478d1547739f2e780f1bb4ca9b133097d401
Pin SHA256: /HhDAOyN9NPRutdjg1GCkY1Sqf8COL32laHNm9uYMhw=
EC 384 bits / SHA384withECDSA
Path #1: Trusted
1 Sent by server www.uni-leipzig.de
Fingerprint SHA256: 477a23d5ac58fadbe74718289c9a70f995a995c37d3eaf83a02467f9a2f4a8cc
Pin SHA256: otqoN6NiHTfKgNZZSU/hY29/+Ac5IYS46R7oiPAq3ig=
EC 384 bits / SHA384withECDSA
CRL ERROR: IOException occurred
2 Sent by server GEANT TLS ECC 1
Fingerprint SHA256: 6cdf0ba1711e856d228ba00ca04c5c1c3d79944c037b713b155a4ee4b47ec53c
Pin SHA256: ejFKBydz15Z1N1P+b5wA1BLK28O3vLnf7cUQW4rq3+o=
EC 384 bits / SHA384withECDSA
CRL ERROR: IOException occurred
3 Sent by server
In trust store 		HARICA TLS ECC Root CA 2021   Self-signed
Fingerprint SHA256: 3f99cc474acfce4dfed58794665e478d1547739f2e780f1bb4ca9b133097d401
Pin SHA256: /HhDAOyN9NPRutdjg1GCkY1Sqf8COL32laHNm9uYMhw=
EC 384 bits / SHA384withECDSA
Path #1: Not trusted (path does not chain to a trusted anchor)
1 Sent by server www.uni-leipzig.de
Fingerprint SHA256: 477a23d5ac58fadbe74718289c9a70f995a995c37d3eaf83a02467f9a2f4a8cc
Pin SHA256: otqoN6NiHTfKgNZZSU/hY29/+Ac5IYS46R7oiPAq3ig=
EC 384 bits / SHA384withECDSA
CRL ERROR: IOException occurred
2 Sent by server GEANT TLS ECC 1
Fingerprint SHA256: 6cdf0ba1711e856d228ba00ca04c5c1c3d79944c037b713b155a4ee4b47ec53c
Pin SHA256: ejFKBydz15Z1N1P+b5wA1BLK28O3vLnf7cUQW4rq3+o=
EC 384 bits / SHA384withECDSA
CRL ERROR: IOException occurred
3 Sent by server
  Not in trust store 		HARICA TLS ECC Root CA 2021   Self-signed
Fingerprint SHA256: 3f99cc474acfce4dfed58794665e478d1547739f2e780f1bb4ca9b133097d401
Pin SHA256: /HhDAOyN9NPRutdjg1GCkY1Sqf8COL32laHNm9uYMhw=
EC 384 bits / SHA384withECDSA
Path #1: Trusted
1 Sent by server www.uni-leipzig.de
Fingerprint SHA256: 477a23d5ac58fadbe74718289c9a70f995a995c37d3eaf83a02467f9a2f4a8cc
Pin SHA256: otqoN6NiHTfKgNZZSU/hY29/+Ac5IYS46R7oiPAq3ig=
EC 384 bits / SHA384withECDSA
CRL ERROR: IOException occurred
2 Sent by server GEANT TLS ECC 1
Fingerprint SHA256: 6cdf0ba1711e856d228ba00ca04c5c1c3d79944c037b713b155a4ee4b47ec53c
Pin SHA256: ejFKBydz15Z1N1P+b5wA1BLK28O3vLnf7cUQW4rq3+o=
EC 384 bits / SHA384withECDSA
CRL ERROR: IOException occurred
3 Sent by server
In trust store 		HARICA TLS ECC Root CA 2021   Self-signed
Fingerprint SHA256: 3f99cc474acfce4dfed58794665e478d1547739f2e780f1bb4ca9b133097d401
Pin SHA256: /HhDAOyN9NPRutdjg1GCkY1Sqf8COL32laHNm9uYMhw=
EC 384 bits / SHA384withECDSA

Click here to expand

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 (suites in server-preferred order)
TLS_CHACHA20_POLY1305_SHA256 (0x1303)   ECDH secp256r1 (eq. 3072 bits RSA)   FS 256
TLS_AES_128_GCM_SHA256 (0x1301)   ECDH secp256r1 (eq. 3072 bits RSA)   FS 128
TLS_AES_256_GCM_SHA384 (0x1302)   ECDH secp256r1 (eq. 3072 bits RSA)   FS 256
# TLS 1.2 (suites in server-preferred order)
TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 (0xc02c)   ECDH secp256r1 (eq. 3072 bits RSA)   FS 256
TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 (0xc02b)   ECDH secp256r1 (eq. 3072 bits RSA)   FS 128
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA (0xc00a)   ECDH secp256r1 (eq. 3072 bits RSA)   FS   WEAK 256
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA (0xc009)   ECDH secp256r1 (eq. 3072 bits RSA)   FS   WEAK 128
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384 (0xc024)   ECDH secp256r1 (eq. 3072 bits RSA)   FS   WEAK 256
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256 (0xc023)   ECDH secp256r1 (eq. 3072 bits RSA)   FS   WEAK 128


Handshake Simulation
Android 4.4.2 EC 384 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
Android 5.0.0 EC 384 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Android 6.0 EC 384 (SHA384)   TLS 1.2 > http/1.1   TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Android 7.0 EC 384 (SHA384)   TLS 1.2 > h2   TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
Android 8.0 EC 384 (SHA384)   TLS 1.2 > h2   TLS_ECDHE_ECDSA_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
BingPreview Jan 2015 EC 384 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
Chrome 49 / XP SP3 Server sent fatal alert: handshake_failure
Chrome 69 / Win 7  R EC 384 (SHA384)   TLS 1.2 > h2   TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
Chrome 70 / Win 10 -   TLS 1.3 TLS_CHACHA20_POLY1305_SHA256   ECDH secp256r1  FS
Chrome 80 / Win 10  R -   TLS 1.3 TLS_CHACHA20_POLY1305_SHA256   ECDH secp256r1  FS
Firefox 31.3.0 ESR / Win 7 EC 384 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Firefox 47 / Win 7  R EC 384 (SHA384)   TLS 1.2 > h2   TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Firefox 49 / XP SP3 EC 384 (SHA384)   TLS 1.2 > h2   TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
Firefox 62 / Win 7  R EC 384 (SHA384)   TLS 1.2 > h2   TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
Firefox 73 / Win 10  R -   TLS 1.3 TLS_CHACHA20_POLY1305_SHA256   ECDH secp256r1  FS
Googlebot Feb 2018 EC 384 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
IE 11 / Win 7  R EC 384 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
IE 11 / Win 8.1  R EC 384 (SHA384)   TLS 1.2 > http/1.1   TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
IE 11 / Win Phone 8.1  R EC 384 (SHA384)   TLS 1.2 > http/1.1   TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
IE 11 / Win Phone 8.1 Update  R EC 384 (SHA384)   TLS 1.2 > http/1.1   TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
IE 11 / Win 10  R EC 384 (SHA384)   TLS 1.2 > h2   TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
Edge 15 / Win 10  R EC 384 (SHA384)   TLS 1.2 > h2   TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
Edge 16 / Win 10  R EC 384 (SHA384)   TLS 1.2 > h2   TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
Edge 18 / Win 10  R EC 384 (SHA384)   TLS 1.2 > h2   TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
Edge 13 / Win Phone 10  R EC 384 (SHA384)   TLS 1.2 > h2   TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
Java 8u161 EC 384 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_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_CHACHA20_POLY1305_SHA256   ECDH secp256r1  FS
OpenSSL 1.0.1l  R EC 384 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
OpenSSL 1.0.2s  R EC 384 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
OpenSSL 1.1.0k  R EC 384 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
OpenSSL 1.1.1c  R -   TLS 1.3 TLS_CHACHA20_POLY1305_SHA256   ECDH secp256r1  FS
Safari 6 / iOS 6.0.1 EC 384 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA   ECDH secp256r1  FS
Safari 7 / iOS 7.1  R EC 384 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA   ECDH secp256r1  FS
Safari 7 / OS X 10.9  R EC 384 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA   ECDH secp256r1  FS
Safari 8 / iOS 8.4  R EC 384 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA   ECDH secp256r1  FS
Safari 8 / OS X 10.10  R EC 384 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA   ECDH secp256r1  FS
Safari 9 / iOS 9  R EC 384 (SHA384)   TLS 1.2 > h2   TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
Safari 9 / OS X 10.11  R EC 384 (SHA384)   TLS 1.2 > h2   TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
Safari 10 / iOS 10  R EC 384 (SHA384)   TLS 1.2 > h2   TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
Safari 10 / OS X 10.12  R EC 384 (SHA384)   TLS 1.2 > h2   TLS_ECDHE_ECDSA_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 EC 384 (SHA384)   TLS 1.2 > h2   TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
Yahoo Slurp Jan 2015 EC 384 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  FS
YandexBot Jan 2015 EC 384 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp256r1  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)

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 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 : 0xc00a
GOLDENDOODLE No (more info)   TLS 1.2 : 0xc00a
OpenSSL 0-Length No (more info)   TLS 1.2 : 0xc00a
Sleeping POODLE No (more info)   TLS 1.2 : 0xc00a
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) No (IDs assigned but not accepted)
Session resumption (tickets) Yes
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)
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
Supported Named Groups secp256r1, secp521r1, secp384r1 (server preferred order)
SSL 2 handshake compatibility No
0-RTT enabled No


HTTP Requests
1 https://www.uni-leipzig.de/  (HTTP/1.1 200 OK)
1
Content-Type text/html; charset=utf-8
Content-Length 324993
Connection close
Server nginx
Date Fri, 28 Nov 2025 16:12:16 GMT
Content-Language de-DE
Vary Accept-Encoding
Strict-Transport-Security max-age=15768000
X-Frame-Options SAMEORIGIN
X-Content-Type-Options nosniff
X-UA-Compatible IE=edge
X-XSS-Protection 1; mode=block
Strict-Transport-Security max-age=31536000; includeSubDomains; preload
Referrer-Policy no-referrer-when-downgrade
Permissions-Policy geolocation=(), midi=(), camera=(), usb=(), magnetometer=(), accelerometer=(), vr=(), speaker=(), ambient-light-sensor=(), gyroscope=(), microphone=()
Expires 0
Pragma no-cache
Cache-Control no-store, no-cache, must-revalidate, max-age=0
age 0
Accept-Ranges bytes


Miscellaneous
Test date Fri, 28 Nov 2025 16:12:03 UTC
Test duration 75.835 seconds
HTTP status code 200
HTTP server signature nginx
Server hostname prod.uni-leipzig.de


SSL Report v2.4.1