SSL Server Test: seminare.bgbau.de (Powered by Qualys SSL Labs)

SSL Report: seminare.bgbau.de (109.233.144.220)

Assessed on: Fri, 22 Aug 2025 17:18:57 UTC | Clear cache

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Summary

Overall Rating

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 supports TLS 1.0 and TLS 1.1. Grade capped to B. 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	seminare.bgbau.de Fingerprint SHA256: e6c8aaea7e12956f75f245de019852e36a8513b355d5de4ff53f06c0b50b260d Pin SHA256: RKrZzeh0UFUWFwNb8MB2OueBuLXr2Dc6KqDiTngNxio=
Common names	seminare.bgbau.de
Alternative names	seminare.bgbau.de
Serial Number	4a1f794333cfc8e50662f924acf965c1
Valid from	Wed, 20 Aug 2025 05:10:37 UTC
Valid until	Sat, 05 Sep 2026 10:13:35 UTC (expires in 1 year)
Key	RSA 4096 bits (e 65537)
Weak key (Debian)	No
Issuer	D-TRUST SSL Class 3 CA 1 2009 AIA: http://www.d-trust.net/cgi-bin/D-TRUST_SSL_Class_3_CA_1_2009.crt
Signature algorithm	SHA256withRSA
Extended Validation	No
Certificate Transparency	Yes (certificate)
OCSP Must Staple	No
Revocation information	CRL, OCSP CRL: http://crl.d-trust.net/crl/d-trust_ssl_class_3_ca_1_2009.der.crl CRL: http://cdn.d-trust-cloudcrl.net/crl/d-trust_ssl_class_3_ca_1_2009.crl OCSP: http://ssl-c3-ca1-2009.ocsp.d-trust.net
Revocation status	Good (not revoked)
DNS CAA	No (more info)
Trusted	Yes Mozilla Apple Android Java Windows

Additional Certificates (if supplied)
Certificates provided	1 (2762 bytes)
Chain issues	Incomplete

Certification Paths


Path #1: Trusted
1	Sent by server	seminare.bgbau.de Fingerprint SHA256: e6c8aaea7e12956f75f245de019852e36a8513b355d5de4ff53f06c0b50b260d Pin SHA256: RKrZzeh0UFUWFwNb8MB2OueBuLXr2Dc6KqDiTngNxio= RSA 4096 bits (e 65537) / SHA256withRSA
2	Extra download	D-TRUST SSL Class 3 CA 1 2009 Fingerprint SHA256: 6ac159b4c2bc8e729f3b84642ef1286bcc80d775fe278c740ada468d59439025 Pin SHA256: 9w0QP9HzLXkfs+4zENaUFq2XKcQON1oyksoJ+Gg2AZE= RSA 2048 bits (e 65537) / SHA256withRSA
3	In trust store	D-TRUST Root Class 3 CA 2 2009 Self-signed Fingerprint SHA256: 49e7a442acf0ea6287050054b52564b650e4f49e42e348d6aa38e039e957b1c1 Pin SHA256: 7KDxgUAs56hlKzG00DbfJH46MLf0GlDZHsT5CwBrQ6E= RSA 2048 bits (e 65537) / SHA256withRSA
Path #1: Trusted
1	Sent by server	seminare.bgbau.de Fingerprint SHA256: e6c8aaea7e12956f75f245de019852e36a8513b355d5de4ff53f06c0b50b260d Pin SHA256: RKrZzeh0UFUWFwNb8MB2OueBuLXr2Dc6KqDiTngNxio= RSA 4096 bits (e 65537) / SHA256withRSA
2	Extra download	D-TRUST SSL Class 3 CA 1 2009 Fingerprint SHA256: 6ac159b4c2bc8e729f3b84642ef1286bcc80d775fe278c740ada468d59439025 Pin SHA256: 9w0QP9HzLXkfs+4zENaUFq2XKcQON1oyksoJ+Gg2AZE= RSA 2048 bits (e 65537) / SHA256withRSA
3	In trust store	D-TRUST Root Class 3 CA 2 2009 Self-signed Fingerprint SHA256: 49e7a442acf0ea6287050054b52564b650e4f49e42e348d6aa38e039e957b1c1 Pin SHA256: 7KDxgUAs56hlKzG00DbfJH46MLf0GlDZHsT5CwBrQ6E= RSA 2048 bits (e 65537) / SHA256withRSA
Path #1: Trusted
1	Sent by server	seminare.bgbau.de Fingerprint SHA256: e6c8aaea7e12956f75f245de019852e36a8513b355d5de4ff53f06c0b50b260d Pin SHA256: RKrZzeh0UFUWFwNb8MB2OueBuLXr2Dc6KqDiTngNxio= RSA 4096 bits (e 65537) / SHA256withRSA
2	Extra download	D-TRUST SSL Class 3 CA 1 2009 Fingerprint SHA256: 6ac159b4c2bc8e729f3b84642ef1286bcc80d775fe278c740ada468d59439025 Pin SHA256: 9w0QP9HzLXkfs+4zENaUFq2XKcQON1oyksoJ+Gg2AZE= RSA 2048 bits (e 65537) / SHA256withRSA
3	In trust store	D-TRUST Root Class 3 CA 2 2009 Self-signed Fingerprint SHA256: 49e7a442acf0ea6287050054b52564b650e4f49e42e348d6aa38e039e957b1c1 Pin SHA256: 7KDxgUAs56hlKzG00DbfJH46MLf0GlDZHsT5CwBrQ6E= RSA 2048 bits (e 65537) / SHA256withRSA
Path #1: Trusted
1	Sent by server	seminare.bgbau.de Fingerprint SHA256: e6c8aaea7e12956f75f245de019852e36a8513b355d5de4ff53f06c0b50b260d Pin SHA256: RKrZzeh0UFUWFwNb8MB2OueBuLXr2Dc6KqDiTngNxio= RSA 4096 bits (e 65537) / SHA256withRSA
2	Extra download	D-TRUST SSL Class 3 CA 1 2009 Fingerprint SHA256: 6ac159b4c2bc8e729f3b84642ef1286bcc80d775fe278c740ada468d59439025 Pin SHA256: 9w0QP9HzLXkfs+4zENaUFq2XKcQON1oyksoJ+Gg2AZE= RSA 2048 bits (e 65537) / SHA256withRSA
3	In trust store	D-TRUST Root Class 3 CA 2 2009 Self-signed Fingerprint SHA256: 49e7a442acf0ea6287050054b52564b650e4f49e42e348d6aa38e039e957b1c1 Pin SHA256: 7KDxgUAs56hlKzG00DbfJH46MLf0GlDZHsT5CwBrQ6E= RSA 2048 bits (e 65537) / SHA256withRSA
Path #1: Trusted
1	Sent by server	seminare.bgbau.de Fingerprint SHA256: e6c8aaea7e12956f75f245de019852e36a8513b355d5de4ff53f06c0b50b260d Pin SHA256: RKrZzeh0UFUWFwNb8MB2OueBuLXr2Dc6KqDiTngNxio= RSA 4096 bits (e 65537) / SHA256withRSA
2	Extra download	D-TRUST SSL Class 3 CA 1 2009 Fingerprint SHA256: 6ac159b4c2bc8e729f3b84642ef1286bcc80d775fe278c740ada468d59439025 Pin SHA256: 9w0QP9HzLXkfs+4zENaUFq2XKcQON1oyksoJ+Gg2AZE= RSA 2048 bits (e 65537) / SHA256withRSA
3	In trust store	D-TRUST Root Class 3 CA 2 2009 Self-signed Fingerprint SHA256: 49e7a442acf0ea6287050054b52564b650e4f49e42e348d6aa38e039e957b1c1 Pin SHA256: 7KDxgUAs56hlKzG00DbfJH46MLf0GlDZHsT5CwBrQ6E= RSA 2048 bits (e 65537) / SHA256withRSA

Click here to expand

Certificate #2: RSA 4096 bits (SHA256withRSA) No SNI

Server Key and Certificate #1
Subject	*.jedermann.de Fingerprint SHA256: 892a008c8681d29c99530883b09401df30e219aac049aa0e45b4fd1c24fb82ab Pin SHA256: h0I3AuY+j+PM+ihzwOy7LmkJV3ib5ecR1/nySAuqeX8=
Common names	*.jedermann.de
Alternative names	.jedermann.de jedermann.de MISMATCH*
Serial Number	6079de789199dce2167aa845c2326991
Valid from	Wed, 13 Aug 2025 12:29:29 UTC
Valid until	Thu, 13 Aug 2026 12:29:28 UTC (expires in 11 months and 21 days)
Key	RSA 4096 bits (e 65537)
Weak key (Debian)	No
Issuer	Certum Domain Validation CA SHA2 AIA: http://repository.certum.pl/dvcasha2.cer
Signature algorithm	SHA256withRSA
Extended Validation	No
Certificate Transparency	Yes (certificate)
OCSP Must Staple	No
Revocation information	CRL, OCSP CRL: http://crl.certum.pl/dvcasha2.crl OCSP: http://dvcasha2.ocsp-certum.com
Revocation status	Good (not revoked)
Trusted	No NOT TRUSTED Mozilla Apple Android Java Windows

Additional Certificates (if supplied)
Certificates provided	2 (3136 bytes)
Chain issues	None
#2
Subject	Certum Domain Validation CA SHA2 Fingerprint SHA256: 129fb5de501e24041cd14a81075fd1cde257408d4a353e636912e38bdda2d3fb Pin SHA256: S4AbJNGvyS57nzJwv8sPMUML8VHSqH1vbiBftdPcErI=
Valid until	Wed, 09 Jun 2027 10:46:39 UTC (expires in 1 year and 9 months)
Key	RSA 2048 bits (e 65537)
Issuer	Certum Trusted Network CA
Signature algorithm	SHA256withRSA

Certification Paths


Path #1: Not trusted (invalid certificate [Fingerprint SHA256: 892a008c8681d29c99530883b09401df30e219aac049aa0e45b4fd1c24fb82ab])
1	Sent by server	*.jedermann.de Fingerprint SHA256: 892a008c8681d29c99530883b09401df30e219aac049aa0e45b4fd1c24fb82ab Pin SHA256: h0I3AuY+j+PM+ihzwOy7LmkJV3ib5ecR1/nySAuqeX8= RSA 4096 bits (e 65537) / SHA256withRSA
2	Sent by server	Certum Domain Validation CA SHA2 Fingerprint SHA256: 129fb5de501e24041cd14a81075fd1cde257408d4a353e636912e38bdda2d3fb Pin SHA256: S4AbJNGvyS57nzJwv8sPMUML8VHSqH1vbiBftdPcErI= RSA 2048 bits (e 65537) / SHA256withRSA
3	In trust store	Certum Trusted Network CA Self-signed Fingerprint SHA256: 5c58468d55f58e497e743982d2b50010b6d165374acf83a7d4a32db768c4408e Pin SHA256: qiYwp7YXsE0KKUureoyqpQFubb5gSDeoOoVxn6tmfrU= RSA 2048 bits (e 65537) / SHA1withRSA Weak or insecure signature, but no impact on root certificate
Path #1: Not trusted (invalid certificate [Fingerprint SHA256: 892a008c8681d29c99530883b09401df30e219aac049aa0e45b4fd1c24fb82ab])
1	Sent by server	*.jedermann.de Fingerprint SHA256: 892a008c8681d29c99530883b09401df30e219aac049aa0e45b4fd1c24fb82ab Pin SHA256: h0I3AuY+j+PM+ihzwOy7LmkJV3ib5ecR1/nySAuqeX8= RSA 4096 bits (e 65537) / SHA256withRSA
2	Sent by server	Certum Domain Validation CA SHA2 Fingerprint SHA256: 129fb5de501e24041cd14a81075fd1cde257408d4a353e636912e38bdda2d3fb Pin SHA256: S4AbJNGvyS57nzJwv8sPMUML8VHSqH1vbiBftdPcErI= RSA 2048 bits (e 65537) / SHA256withRSA
3	In trust store	Certum Trusted Network CA Self-signed Fingerprint SHA256: 5c58468d55f58e497e743982d2b50010b6d165374acf83a7d4a32db768c4408e Pin SHA256: qiYwp7YXsE0KKUureoyqpQFubb5gSDeoOoVxn6tmfrU= RSA 2048 bits (e 65537) / SHA1withRSA Weak or insecure signature, but no impact on root certificate
Path #1: Not trusted (invalid certificate [Fingerprint SHA256: 892a008c8681d29c99530883b09401df30e219aac049aa0e45b4fd1c24fb82ab])
1	Sent by server	*.jedermann.de Fingerprint SHA256: 892a008c8681d29c99530883b09401df30e219aac049aa0e45b4fd1c24fb82ab Pin SHA256: h0I3AuY+j+PM+ihzwOy7LmkJV3ib5ecR1/nySAuqeX8= RSA 4096 bits (e 65537) / SHA256withRSA
2	Sent by server	Certum Domain Validation CA SHA2 Fingerprint SHA256: 129fb5de501e24041cd14a81075fd1cde257408d4a353e636912e38bdda2d3fb Pin SHA256: S4AbJNGvyS57nzJwv8sPMUML8VHSqH1vbiBftdPcErI= RSA 2048 bits (e 65537) / SHA256withRSA
3	In trust store	Certum Trusted Network CA Self-signed Fingerprint SHA256: 5c58468d55f58e497e743982d2b50010b6d165374acf83a7d4a32db768c4408e Pin SHA256: qiYwp7YXsE0KKUureoyqpQFubb5gSDeoOoVxn6tmfrU= RSA 2048 bits (e 65537) / SHA1withRSA Weak or insecure signature, but no impact on root certificate
Path #1: Not trusted (invalid certificate [Fingerprint SHA256: 892a008c8681d29c99530883b09401df30e219aac049aa0e45b4fd1c24fb82ab])
1	Sent by server	*.jedermann.de Fingerprint SHA256: 892a008c8681d29c99530883b09401df30e219aac049aa0e45b4fd1c24fb82ab Pin SHA256: h0I3AuY+j+PM+ihzwOy7LmkJV3ib5ecR1/nySAuqeX8= RSA 4096 bits (e 65537) / SHA256withRSA
2	Sent by server	Certum Domain Validation CA SHA2 Fingerprint SHA256: 129fb5de501e24041cd14a81075fd1cde257408d4a353e636912e38bdda2d3fb Pin SHA256: S4AbJNGvyS57nzJwv8sPMUML8VHSqH1vbiBftdPcErI= RSA 2048 bits (e 65537) / SHA256withRSA
3	In trust store	Certum Trusted Network CA Self-signed Fingerprint SHA256: 5c58468d55f58e497e743982d2b50010b6d165374acf83a7d4a32db768c4408e Pin SHA256: qiYwp7YXsE0KKUureoyqpQFubb5gSDeoOoVxn6tmfrU= RSA 2048 bits (e 65537) / SHA1withRSA Weak or insecure signature, but no impact on root certificate
Path #1: Not trusted (invalid certificate [Fingerprint SHA256: 892a008c8681d29c99530883b09401df30e219aac049aa0e45b4fd1c24fb82ab])
1	Sent by server	*.jedermann.de Fingerprint SHA256: 892a008c8681d29c99530883b09401df30e219aac049aa0e45b4fd1c24fb82ab Pin SHA256: h0I3AuY+j+PM+ihzwOy7LmkJV3ib5ecR1/nySAuqeX8= RSA 4096 bits (e 65537) / SHA256withRSA
2	Sent by server	Certum Domain Validation CA SHA2 Fingerprint SHA256: 129fb5de501e24041cd14a81075fd1cde257408d4a353e636912e38bdda2d3fb Pin SHA256: S4AbJNGvyS57nzJwv8sPMUML8VHSqH1vbiBftdPcErI= RSA 2048 bits (e 65537) / SHA256withRSA
3	In trust store	Certum Trusted Network CA Self-signed Fingerprint SHA256: 5c58468d55f58e497e743982d2b50010b6d165374acf83a7d4a32db768c4408e Pin SHA256: qiYwp7YXsE0KKUureoyqpQFubb5gSDeoOoVxn6tmfrU= RSA 2048 bits (e 65537) / SHA1withRSA Weak or insecure signature, but no impact on root certificate

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
(*) Experimental: Server negotiated using No-SNI

Cipher Suites
# TLS 1.3 (suites in server-preferred order)
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
TLS_AES_128_GCM_SHA256 (`0x1301`) ECDH x25519 (eq. 3072 bits RSA) FS	128
# TLS 1.2 (suites in server-preferred order)
TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (`0xc030`) ECDH x25519 (eq. 3072 bits RSA) FS	256
TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (`0xc02f`) ECDH x25519 (eq. 3072 bits RSA) FS	128
TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 (`0x9f`) DH 3072 bits FS	256
TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 (`0x9e`) DH 3072 bits FS	128
TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 (`0xcca8`) ECDH x25519 (eq. 3072 bits RSA) FS	256
TLS_ECDHE_RSA_WITH_ARIA_256_GCM_SHA384 (`0xc061`) ECDH x25519 (eq. 3072 bits RSA) FS	256
TLS_ECDHE_RSA_WITH_ARIA_128_GCM_SHA256 (`0xc060`) ECDH x25519 (eq. 3072 bits RSA) FS	128
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 (`0xc028`) ECDH x25519 (eq. 3072 bits RSA) FS WEAK	256
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 (`0xc027`) ECDH x25519 (eq. 3072 bits RSA) FS WEAK	128
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA (`0xc014`) ECDH x25519 (eq. 3072 bits RSA) FS WEAK	256
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA (`0xc013`) ECDH x25519 (eq. 3072 bits RSA) FS WEAK	128
TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256 (`0xccaa`) DH 3072 bits FS	256
TLS_DHE_RSA_WITH_AES_256_CCM_8 (`0xc0a3`) DH 3072 bits FS	256
TLS_DHE_RSA_WITH_AES_256_CCM (`0xc09f`) DH 3072 bits FS	256
TLS_DHE_RSA_WITH_ARIA_256_GCM_SHA384 (`0xc053`) DH 3072 bits FS	256
TLS_DHE_RSA_WITH_AES_128_CCM_8 (`0xc0a2`) DH 3072 bits FS	128
TLS_DHE_RSA_WITH_AES_128_CCM (`0xc09e`) DH 3072 bits FS	128
TLS_DHE_RSA_WITH_ARIA_128_GCM_SHA256 (`0xc052`) DH 3072 bits FS	128
TLS_DHE_RSA_WITH_AES_256_CBC_SHA256 (`0x6b`) DH 3072 bits FS WEAK	256
TLS_DHE_RSA_WITH_AES_128_CBC_SHA256 (`0x67`) DH 3072 bits FS WEAK	128
TLS_DHE_RSA_WITH_AES_256_CBC_SHA (`0x39`) DH 3072 bits FS WEAK	256
TLS_DHE_RSA_WITH_AES_128_CBC_SHA (`0x33`) DH 3072 bits FS WEAK	128
# TLS 1.1 (suites in server-preferred order)
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA (`0xc014`) ECDH x25519 (eq. 3072 bits RSA) FS WEAK	256
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA (`0xc013`) ECDH x25519 (eq. 3072 bits RSA) FS WEAK	128
TLS_DHE_RSA_WITH_AES_256_CBC_SHA (`0x39`) DH 3072 bits FS WEAK	256
TLS_DHE_RSA_WITH_AES_128_CBC_SHA (`0x33`) DH 3072 bits FS WEAK	128
# TLS 1.0 (suites in server-preferred order)
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA (`0xc014`) ECDH x25519 (eq. 3072 bits RSA) FS WEAK	256
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA (`0xc013`) ECDH x25519 (eq. 3072 bits RSA) FS WEAK	128
TLS_DHE_RSA_WITH_AES_256_CBC_SHA (`0x39`) DH 3072 bits FS WEAK	256
TLS_DHE_RSA_WITH_AES_128_CBC_SHA (`0x33`) DH 3072 bits FS WEAK	128

Handshake Simulation
Android 2.3.7 No SNI ²	Incorrect certificate because this client doesn't support SNI RSA 4096 (SHA256) \| TLS 1.0 \| TLS_DHE_RSA_WITH_AES_128_CBC_SHA \| DH 3072
Android 4.0.4	RSA 4096 (SHA256)	TLS 1.0	TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA ECDH secp256r1 FS
Android 4.1.1	RSA 4096 (SHA256)	TLS 1.0	TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA ECDH secp256r1 FS
Android 4.2.2	RSA 4096 (SHA256)	TLS 1.0	TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA ECDH secp256r1 FS
Android 4.3	RSA 4096 (SHA256)	TLS 1.0	TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA ECDH secp256r1 FS
Android 4.4.2	RSA 4096 (SHA256)	TLS 1.2	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS
Android 5.0.0	RSA 4096 (SHA256)	TLS 1.2	TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 ECDH secp256r1 FS
Android 6.0	RSA 4096 (SHA256)	TLS 1.2 > http/1.1	TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 ECDH secp256r1 FS
Android 7.0	RSA 4096 (SHA256)	TLS 1.2 > http/1.1	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH x25519 FS
Android 8.0	RSA 4096 (SHA256)	TLS 1.2 > http/1.1	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH x25519 FS
Android 8.1	-	TLS 1.3	TLS_AES_256_GCM_SHA384 ECDH x25519 FS
Android 9.0	-	TLS 1.3	TLS_AES_256_GCM_SHA384 ECDH x25519 FS
Baidu Jan 2015	RSA 4096 (SHA256)	TLS 1.0	TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA ECDH secp256r1 FS
BingPreview Jan 2015	RSA 4096 (SHA256)	TLS 1.2	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS
Chrome 49 / XP SP3	RSA 4096 (SHA256)	TLS 1.2 > http/1.1	TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 ECDH secp256r1 FS
Chrome 69 / Win 7 R	RSA 4096 (SHA256)	TLS 1.2 > http/1.1	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH x25519 FS
Chrome 70 / Win 10	-	TLS 1.3	TLS_AES_256_GCM_SHA384 ECDH x25519 FS
Chrome 80 / Win 10 R	-	TLS 1.3	TLS_AES_256_GCM_SHA384 ECDH x25519 FS
Firefox 31.3.0 ESR / Win 7	RSA 4096 (SHA256)	TLS 1.2	TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 ECDH secp256r1 FS
Firefox 47 / Win 7 R	RSA 4096 (SHA256)	TLS 1.2 > http/1.1	TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 ECDH secp256r1 FS
Firefox 49 / XP SP3	RSA 4096 (SHA256)	TLS 1.2 > http/1.1	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS
Firefox 62 / Win 7 R	RSA 4096 (SHA256)	TLS 1.2 > http/1.1	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH x25519 FS
Firefox 73 / Win 10 R	-	TLS 1.3	TLS_AES_256_GCM_SHA384 ECDH x25519 FS
Googlebot Feb 2018	RSA 4096 (SHA256)	TLS 1.2	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH x25519 FS
IE 7 / Vista	RSA 4096 (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 4096 (SHA256)	TLS 1.0	TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA ECDH secp256r1 FS
IE 11 / Win 7 R	RSA 4096 (SHA256)	TLS 1.2	TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 DH 3072 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 3072 FS
IE 10 / Win Phone 8.0	RSA 4096 (SHA256)	TLS 1.0	TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA ECDH secp256r1 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 secp256r1 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 3072 FS
IE 11 / Win 10 R	RSA 4096 (SHA256)	TLS 1.2 > http/1.1	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS
Edge 15 / Win 10 R	RSA 4096 (SHA256)	TLS 1.2 > http/1.1	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH x25519 FS
Edge 16 / Win 10 R	RSA 4096 (SHA256)	TLS 1.2 > http/1.1	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH x25519 FS
Edge 18 / Win 10 R	RSA 4096 (SHA256)	TLS 1.2 > http/1.1	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH x25519 FS
Edge 13 / Win Phone 10 R	RSA 4096 (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 4096 (SHA256) \| TLS 1.0 \| TLS_DHE_RSA_WITH_AES_128_CBC_SHA \| DH 3072
Java 7u25	RSA 4096 (SHA256)	TLS 1.0	TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA ECDH secp256r1 FS
Java 8u161	RSA 4096 (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 4096 (SHA256)	TLS 1.0	TLS_DHE_RSA_WITH_AES_256_CBC_SHA DH 3072 FS
OpenSSL 1.0.1l R	RSA 4096 (SHA256)	TLS 1.2	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS
OpenSSL 1.0.2s R	RSA 4096 (SHA256)	TLS 1.2	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS
OpenSSL 1.1.0k R	RSA 4096 (SHA256)	TLS 1.2	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH x25519 FS
OpenSSL 1.1.1c R	-	TLS 1.3	TLS_AES_256_GCM_SHA384 ECDH x25519 FS
Safari 5.1.9 / OS X 10.6.8	RSA 4096 (SHA256)	TLS 1.0	TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA ECDH secp256r1 FS
Safari 6 / iOS 6.0.1	RSA 4096 (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 4096 (SHA256)	TLS 1.0	TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA ECDH secp256r1 FS
Safari 7 / iOS 7.1 R	RSA 4096 (SHA256)	TLS 1.2	TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 ECDH secp256r1 FS
Safari 7 / OS X 10.9 R	RSA 4096 (SHA256)	TLS 1.2	TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 ECDH secp256r1 FS
Safari 8 / iOS 8.4 R	RSA 4096 (SHA256)	TLS 1.2	TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 ECDH secp256r1 FS
Safari 8 / OS X 10.10 R	RSA 4096 (SHA256)	TLS 1.2	TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 ECDH secp256r1 FS
Safari 9 / iOS 9 R	RSA 4096 (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 4096 (SHA256)	TLS 1.2 > http/1.1	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS
Safari 10 / iOS 10 R	RSA 4096 (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 4096 (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_AES_256_GCM_SHA384 ECDH x25519 FS
Safari 12.1.1 / iOS 12.3.1 R	-	TLS 1.3	TLS_AES_256_GCM_SHA384 ECDH x25519 FS
Apple ATS 9 / iOS 9 R	RSA 4096 (SHA256)	TLS 1.2 > http/1.1	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS
Yahoo Slurp Jan 2015	RSA 4096 (SHA256)	TLS 1.2	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS
YandexBot Jan 2015	RSA 4096 (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	No
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 : `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 http/1.1
NPN	No
Session resumption (caching)	Yes
Session resumption (tickets)	Yes
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	x25519, secp256r1, x448, secp521r1, secp384r1 (server preferred order)
SSL 2 handshake compatibility	Yes
0-RTT enabled	No

HTTP Requests

1 https://seminare.bgbau.de/ (HTTP/1.1 307 Temporary Redirect)
1
	Date	Fri, 22 Aug 2025 17:16:55 GMT
	Server	Apache
	Location	https://seminare.bgbau.de/de
	Content-Length	238
	Connection	close
	Content-Type	text/html; charset=iso-8859-1

2 https://seminare.bgbau.de/de (HTTP/1.1 301 Moved Permanently)
2
	Date	Fri, 22 Aug 2025 17:16:56 GMT
	Server	Apache
	Location	https://seminare.bgbau.de/de/
	Content-Length	237
	Connection	close
	Content-Type	text/html; charset=iso-8859-1

3 https://seminare.bgbau.de/de/ (HTTP/1.1 200 OK)
3
	Date	Fri, 22 Aug 2025 17:16:57 GMT
	Server	Apache
	Set-Cookie	SESSIONID=ed1ced0bad3e48f6d03300fa8c691ca4; path=/; secure; HttpOnly
	Expires	0
	Cache-Control	no-cache, no-store, must-revalidate
	Pragma	no-cache
	X-REQUEST-URI	/
	X-CONTEXT	/de
	Connection	close
	Transfer-Encoding	chunked
	Content-Type	text/html; charset=UTF-8

Miscellaneous
Test date	Fri, 22 Aug 2025 17:16:45 UTC
Test duration	132.285 seconds
HTTP status code	200
HTTP server signature	Apache
Server hostname	-

SSL Report v2.4.1

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