SSL Report: helpdesk.universiteitleiden.nl (132.229.29.30)
Assessed on:  Fri, 13 Jun 2025 17:32:29 UTC | Clear cache
Scan Another »

Due to a recently discovered bug in Apple's code, your browser is exposed to MITM attacks. Click here for more information.

Summary
Overall Rating
A+
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 supports TLS 1.3.  MORE INFO »
HTTP Strict Transport Security (HSTS) with long duration deployed on this server.  MORE INFO »
Certificate #1: EC 384 bits (SHA384withECDSA)
Server Key and Certificate #1
Subject topdesk.leidenuniv.nl
Fingerprint SHA256: 7241c799a8b982f51ee078270ccc984f8466cc8fce73ed03b495e9ed7ac20524
Pin SHA256: r5oLCec2bUOCcV+LOGl/FDtEv/x/Ioi41LhYa3hzUx8=
Common names topdesk.leidenuniv.nl
Alternative names topdesk.leidenuniv.nl helpdesk.universiteitleiden.nl
Serial Number 5b1dc9cccce0cdd2a728d30c5c4a0913
Valid from Wed, 11 Jun 2025 08:08:28 UTC
Valid until Thu, 11 Jun 2026 08:08:28 UTC (expires in 11 months and 27 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)
DNS CAA No (more info)
Trusted Yes
Mozilla  Apple  Android  Java  Windows 


Additional Certificates (if supplied)
Certificates provided 3 (3022 bytes)
Chain issues None
#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 6 months)
Key EC 384 bits
Issuer HARICA TLS ECC Root CA 2021
Signature algorithm SHA384withECDSA
#3
Subject HARICA TLS ECC Root CA 2021
Fingerprint SHA256: 50e27f90eb6af495b0e6eeb655cc89444c27d3c95b6823fa02abdc95f1636ae1
Pin SHA256: /HhDAOyN9NPRutdjg1GCkY1Sqf8COL32laHNm9uYMhw=
Valid until Fri, 31 Aug 2029 07:44:36 UTC (expires in 4 years and 2 months)
Key EC 384 bits
Issuer Hellenic Academic and Research Institutions ECC RootCA 2015
Signature algorithm SHA384withECDSA


Certification Paths
Path #1: Trusted
1 Sent by server topdesk.leidenuniv.nl
Fingerprint SHA256: 7241c799a8b982f51ee078270ccc984f8466cc8fce73ed03b495e9ed7ac20524
Pin SHA256: r5oLCec2bUOCcV+LOGl/FDtEv/x/Ioi41LhYa3hzUx8=
EC 384 bits / SHA384withECDSA
2 Sent by server GEANT TLS ECC 1
Fingerprint SHA256: 6cdf0ba1711e856d228ba00ca04c5c1c3d79944c037b713b155a4ee4b47ec53c
Pin SHA256: ejFKBydz15Z1N1P+b5wA1BLK28O3vLnf7cUQW4rq3+o=
EC 384 bits / SHA384withECDSA
3 In trust store HARICA TLS ECC Root CA 2021   Self-signed
Fingerprint SHA256: 3f99cc474acfce4dfed58794665e478d1547739f2e780f1bb4ca9b133097d401
Pin SHA256: /HhDAOyN9NPRutdjg1GCkY1Sqf8COL32laHNm9uYMhw=
EC 384 bits / SHA384withECDSA
Path #2: Trusted
1 Sent by server topdesk.leidenuniv.nl
Fingerprint SHA256: 7241c799a8b982f51ee078270ccc984f8466cc8fce73ed03b495e9ed7ac20524
Pin SHA256: r5oLCec2bUOCcV+LOGl/FDtEv/x/Ioi41LhYa3hzUx8=
EC 384 bits / SHA384withECDSA
2 Sent by server GEANT TLS ECC 1
Fingerprint SHA256: 6cdf0ba1711e856d228ba00ca04c5c1c3d79944c037b713b155a4ee4b47ec53c
Pin SHA256: ejFKBydz15Z1N1P+b5wA1BLK28O3vLnf7cUQW4rq3+o=
EC 384 bits / SHA384withECDSA
3 Sent by server HARICA TLS ECC Root CA 2021
Fingerprint SHA256: 50e27f90eb6af495b0e6eeb655cc89444c27d3c95b6823fa02abdc95f1636ae1
Pin SHA256: /HhDAOyN9NPRutdjg1GCkY1Sqf8COL32laHNm9uYMhw=
EC 384 bits / SHA384withECDSA
4 In trust store Hellenic Academic and Research Institutions ECC RootCA 2015   Self-signed
Fingerprint SHA256: 44b545aa8a25e65a73ca15dc27fc36d24c1cb9953a066539b11582dc487b4833
Pin SHA256: u1IIbQY56NszJ3Wsj06ENdks6wD04k8o/A6r4kB3LoA=
EC 384 bits / SHA256withECDSA
Path #1: Trusted
1 Sent by server topdesk.leidenuniv.nl
Fingerprint SHA256: 7241c799a8b982f51ee078270ccc984f8466cc8fce73ed03b495e9ed7ac20524
Pin SHA256: r5oLCec2bUOCcV+LOGl/FDtEv/x/Ioi41LhYa3hzUx8=
EC 384 bits / SHA384withECDSA
2 Sent by server GEANT TLS ECC 1
Fingerprint SHA256: 6cdf0ba1711e856d228ba00ca04c5c1c3d79944c037b713b155a4ee4b47ec53c
Pin SHA256: ejFKBydz15Z1N1P+b5wA1BLK28O3vLnf7cUQW4rq3+o=
EC 384 bits / SHA384withECDSA
3 In trust store HARICA TLS ECC Root CA 2021   Self-signed
Fingerprint SHA256: 3f99cc474acfce4dfed58794665e478d1547739f2e780f1bb4ca9b133097d401
Pin SHA256: /HhDAOyN9NPRutdjg1GCkY1Sqf8COL32laHNm9uYMhw=
EC 384 bits / SHA384withECDSA
Path #2: Trusted
1 Sent by server topdesk.leidenuniv.nl
Fingerprint SHA256: 7241c799a8b982f51ee078270ccc984f8466cc8fce73ed03b495e9ed7ac20524
Pin SHA256: r5oLCec2bUOCcV+LOGl/FDtEv/x/Ioi41LhYa3hzUx8=
EC 384 bits / SHA384withECDSA
2 Sent by server GEANT TLS ECC 1
Fingerprint SHA256: 6cdf0ba1711e856d228ba00ca04c5c1c3d79944c037b713b155a4ee4b47ec53c
Pin SHA256: ejFKBydz15Z1N1P+b5wA1BLK28O3vLnf7cUQW4rq3+o=
EC 384 bits / SHA384withECDSA
3 Sent by server HARICA TLS ECC Root CA 2021
Fingerprint SHA256: 50e27f90eb6af495b0e6eeb655cc89444c27d3c95b6823fa02abdc95f1636ae1
Pin SHA256: /HhDAOyN9NPRutdjg1GCkY1Sqf8COL32laHNm9uYMhw=
EC 384 bits / SHA384withECDSA
4 In trust store Hellenic Academic and Research Institutions ECC RootCA 2015   Self-signed
Fingerprint SHA256: 44b545aa8a25e65a73ca15dc27fc36d24c1cb9953a066539b11582dc487b4833
Pin SHA256: u1IIbQY56NszJ3Wsj06ENdks6wD04k8o/A6r4kB3LoA=
EC 384 bits / SHA256withECDSA
Path #1: Trusted
1 Sent by server topdesk.leidenuniv.nl
Fingerprint SHA256: 7241c799a8b982f51ee078270ccc984f8466cc8fce73ed03b495e9ed7ac20524
Pin SHA256: r5oLCec2bUOCcV+LOGl/FDtEv/x/Ioi41LhYa3hzUx8=
EC 384 bits / SHA384withECDSA
2 Sent by server GEANT TLS ECC 1
Fingerprint SHA256: 6cdf0ba1711e856d228ba00ca04c5c1c3d79944c037b713b155a4ee4b47ec53c
Pin SHA256: ejFKBydz15Z1N1P+b5wA1BLK28O3vLnf7cUQW4rq3+o=
EC 384 bits / SHA384withECDSA
3 In trust store HARICA TLS ECC Root CA 2021   Self-signed
Fingerprint SHA256: 3f99cc474acfce4dfed58794665e478d1547739f2e780f1bb4ca9b133097d401
Pin SHA256: /HhDAOyN9NPRutdjg1GCkY1Sqf8COL32laHNm9uYMhw=
EC 384 bits / SHA384withECDSA
Path #2: Trusted
1 Sent by server topdesk.leidenuniv.nl
Fingerprint SHA256: 7241c799a8b982f51ee078270ccc984f8466cc8fce73ed03b495e9ed7ac20524
Pin SHA256: r5oLCec2bUOCcV+LOGl/FDtEv/x/Ioi41LhYa3hzUx8=
EC 384 bits / SHA384withECDSA
2 Sent by server GEANT TLS ECC 1
Fingerprint SHA256: 6cdf0ba1711e856d228ba00ca04c5c1c3d79944c037b713b155a4ee4b47ec53c
Pin SHA256: ejFKBydz15Z1N1P+b5wA1BLK28O3vLnf7cUQW4rq3+o=
EC 384 bits / SHA384withECDSA
3 Sent by server HARICA TLS ECC Root CA 2021
Fingerprint SHA256: 50e27f90eb6af495b0e6eeb655cc89444c27d3c95b6823fa02abdc95f1636ae1
Pin SHA256: /HhDAOyN9NPRutdjg1GCkY1Sqf8COL32laHNm9uYMhw=
EC 384 bits / SHA384withECDSA
4 In trust store Hellenic Academic and Research Institutions ECC RootCA 2015   Self-signed
Fingerprint SHA256: 44b545aa8a25e65a73ca15dc27fc36d24c1cb9953a066539b11582dc487b4833
Pin SHA256: u1IIbQY56NszJ3Wsj06ENdks6wD04k8o/A6r4kB3LoA=
EC 384 bits / SHA256withECDSA
Path #1: Trusted
1 Sent by server topdesk.leidenuniv.nl
Fingerprint SHA256: 7241c799a8b982f51ee078270ccc984f8466cc8fce73ed03b495e9ed7ac20524
Pin SHA256: r5oLCec2bUOCcV+LOGl/FDtEv/x/Ioi41LhYa3hzUx8=
EC 384 bits / SHA384withECDSA
2 Sent by server GEANT TLS ECC 1
Fingerprint SHA256: 6cdf0ba1711e856d228ba00ca04c5c1c3d79944c037b713b155a4ee4b47ec53c
Pin SHA256: ejFKBydz15Z1N1P+b5wA1BLK28O3vLnf7cUQW4rq3+o=
EC 384 bits / SHA384withECDSA
3 Sent by server HARICA TLS ECC Root CA 2021
Fingerprint SHA256: 50e27f90eb6af495b0e6eeb655cc89444c27d3c95b6823fa02abdc95f1636ae1
Pin SHA256: /HhDAOyN9NPRutdjg1GCkY1Sqf8COL32laHNm9uYMhw=
EC 384 bits / SHA384withECDSA
4 In trust store Hellenic Academic and Research Institutions ECC RootCA 2015   Self-signed
Fingerprint SHA256: 44b545aa8a25e65a73ca15dc27fc36d24c1cb9953a066539b11582dc487b4833
Pin SHA256: u1IIbQY56NszJ3Wsj06ENdks6wD04k8o/A6r4kB3LoA=
EC 384 bits / SHA256withECDSA
Path #2: Not trusted (path does not chain to a trusted anchor)
1 Sent by server topdesk.leidenuniv.nl
Fingerprint SHA256: 7241c799a8b982f51ee078270ccc984f8466cc8fce73ed03b495e9ed7ac20524
Pin SHA256: r5oLCec2bUOCcV+LOGl/FDtEv/x/Ioi41LhYa3hzUx8=
EC 384 bits / SHA384withECDSA
2 Sent by server GEANT TLS ECC 1
Fingerprint SHA256: 6cdf0ba1711e856d228ba00ca04c5c1c3d79944c037b713b155a4ee4b47ec53c
Pin SHA256: ejFKBydz15Z1N1P+b5wA1BLK28O3vLnf7cUQW4rq3+o=
EC 384 bits / SHA384withECDSA
3 Extra download
  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 topdesk.leidenuniv.nl
Fingerprint SHA256: 7241c799a8b982f51ee078270ccc984f8466cc8fce73ed03b495e9ed7ac20524
Pin SHA256: r5oLCec2bUOCcV+LOGl/FDtEv/x/Ioi41LhYa3hzUx8=
EC 384 bits / SHA384withECDSA
2 Sent by server GEANT TLS ECC 1
Fingerprint SHA256: 6cdf0ba1711e856d228ba00ca04c5c1c3d79944c037b713b155a4ee4b47ec53c
Pin SHA256: ejFKBydz15Z1N1P+b5wA1BLK28O3vLnf7cUQW4rq3+o=
EC 384 bits / SHA384withECDSA
3 In trust store HARICA TLS ECC Root CA 2021   Self-signed
Fingerprint SHA256: 3f99cc474acfce4dfed58794665e478d1547739f2e780f1bb4ca9b133097d401
Pin SHA256: /HhDAOyN9NPRutdjg1GCkY1Sqf8COL32laHNm9uYMhw=
EC 384 bits / SHA384withECDSA
Path #2: Trusted
1 Sent by server topdesk.leidenuniv.nl
Fingerprint SHA256: 7241c799a8b982f51ee078270ccc984f8466cc8fce73ed03b495e9ed7ac20524
Pin SHA256: r5oLCec2bUOCcV+LOGl/FDtEv/x/Ioi41LhYa3hzUx8=
EC 384 bits / SHA384withECDSA
2 Sent by server GEANT TLS ECC 1
Fingerprint SHA256: 6cdf0ba1711e856d228ba00ca04c5c1c3d79944c037b713b155a4ee4b47ec53c
Pin SHA256: ejFKBydz15Z1N1P+b5wA1BLK28O3vLnf7cUQW4rq3+o=
EC 384 bits / SHA384withECDSA
3 Sent by server HARICA TLS ECC Root CA 2021
Fingerprint SHA256: 50e27f90eb6af495b0e6eeb655cc89444c27d3c95b6823fa02abdc95f1636ae1
Pin SHA256: /HhDAOyN9NPRutdjg1GCkY1Sqf8COL32laHNm9uYMhw=
EC 384 bits / SHA384withECDSA
4 In trust store Hellenic Academic and Research Institutions ECC RootCA 2015   Self-signed
Fingerprint SHA256: 44b545aa8a25e65a73ca15dc27fc36d24c1cb9953a066539b11582dc487b4833
Pin SHA256: u1IIbQY56NszJ3Wsj06ENdks6wD04k8o/A6r4kB3LoA=
EC 384 bits / SHA256withECDSA

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_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)
TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 (0xc02c)   ECDH secp384r1 (eq. 7680 bits RSA)   FS 256
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA (0xc00a)   ECDH secp384r1 (eq. 7680 bits RSA)   FS   WEAK 256
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384 (0xc024)   ECDH secp384r1 (eq. 7680 bits RSA)   FS   WEAK 256
TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 (0xcca9)   ECDH secp384r1 (eq. 7680 bits RSA)   FS 256
TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 (0xc02b)   ECDH secp384r1 (eq. 7680 bits RSA)   FS 128
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA (0xc009)   ECDH secp384r1 (eq. 7680 bits RSA)   FS   WEAK 128
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256 (0xc023)   ECDH secp384r1 (eq. 7680 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 secp384r1  FS
Android 5.0.0 EC 384 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA   ECDH secp384r1  FS
Android 6.0 EC 384 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA   ECDH secp384r1  FS
Android 7.0 EC 384 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp384r1  FS
Android 8.0 EC 384 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_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 EC 384 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp384r1  FS
Chrome 49 / XP SP3 Server sent fatal alert: handshake_failure
Chrome 69 / Win 7  R EC 384 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_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 EC 384 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA   ECDH secp384r1  FS
Firefox 47 / Win 7  R EC 384 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA   ECDH secp384r1  FS
Firefox 49 / XP SP3 EC 384 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp384r1  FS
Firefox 62 / Win 7  R EC 384 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_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 EC 384 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp384r1  FS
IE 11 / Win 7  R EC 384 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp384r1  FS
IE 11 / Win 8.1  R EC 384 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp384r1  FS
IE 11 / Win Phone 8.1  R EC 384 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp384r1  FS
IE 11 / Win Phone 8.1 Update  R EC 384 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp384r1  FS
IE 11 / Win 10  R EC 384 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp384r1  FS
Edge 15 / Win 10  R EC 384 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp384r1  FS
Edge 16 / Win 10  R EC 384 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp384r1  FS
Edge 18 / Win 10  R EC 384 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp384r1  FS
Edge 13 / Win Phone 10  R EC 384 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp384r1  FS
Java 8u161 EC 384 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_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 EC 384 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp384r1  FS
OpenSSL 1.0.2s  R EC 384 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp384r1  FS
OpenSSL 1.1.0k  R EC 384 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_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 EC 384 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA   ECDH secp384r1  FS
Safari 7 / iOS 7.1  R EC 384 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA   ECDH secp384r1  FS
Safari 7 / OS X 10.9  R EC 384 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA   ECDH secp384r1  FS
Safari 8 / iOS 8.4  R EC 384 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA   ECDH secp384r1  FS
Safari 8 / OS X 10.10  R EC 384 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA   ECDH secp384r1  FS
Safari 9 / iOS 9  R EC 384 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp384r1  FS
Safari 9 / OS X 10.11  R EC 384 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp384r1  FS
Safari 10 / iOS 10  R EC 384 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp384r1  FS
Safari 10 / OS X 10.12  R EC 384 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_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 EC 384 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp384r1  FS
Yahoo Slurp Jan 2015 EC 384 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp384r1  FS
YandexBot Jan 2015 EC 384 (SHA384)   TLS 1.2 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384   ECDH secp384r1  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 Yes
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 No
NPN No
Session resumption (caching) Yes
Session resumption (tickets) No
OCSP stapling No
Strict Transport Security (HSTS) Yes
max-age=16070400; includeSubDomains
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 secp384r1, secp256r1, x25519 (server preferred order)
SSL 2 handshake compatibility Yes
0-RTT enabled No


HTTP Requests
1 https://helpdesk.universiteitleiden.nl/  (HTTP/1.1 200 OK)
1
Date Fri, 13 Jun 2025 17:31:28 GMT
Content-Type text/html;charset=utf-8
Content-Length 3714
X-Content-Type-Options nosniff
X-XSS-Protection 1; mode=block
X-Robots-Tag noindex,nofollow
X-Frame-Options SAMEORIGIN
Expires Thu, 01 Jan 1970 00:00:00 GMT
Last-Modified Thu, 12 Jun 2025 17:31:28 GMT
Cache-Control no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Pragma no-cache
P3P CP=CAO PSA OUR
Set-Cookie JSESSIONID_PUBLIC=node0zykath1u0clc1unudl8rwuhbi212.node0; Path=/; Secure; HttpOnly
Via 1.1 topdesk.leidenuniv.nl
Vary Accept-Encoding
Connection close
Strict-Transport-Security max-age=16070400; includeSubDomains


Miscellaneous
Test date Fri, 13 Jun 2025 17:31:03 UTC
Test duration 86.234 seconds
HTTP status code 200
HTTP server signature -
Server hostname p-lb-000588.infra.leidenuniv.nl


SSL Report v2.4.0