SSL Report: acspace.dedyn.io (183.178.200.138)
Assessed on:  Thu, 16 Oct 2025 01:23:59 UTC | Clear cache

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Summary
Overall Rating
A
0
20
40
60
80
100
Certificate
 
Protocol Support
 
Key Exchange
 
Cipher Strength
 

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This server supports TLS 1.3.  MORE INFO »
Certificate #1: EC 256 bits (SHA384withECDSA)
Server Key and Certificate #1
Subject acspace.dedyn.io
Fingerprint SHA256: c48e58432f0098adbace57ce5432b80e71f89cc0929f82b88fd36e67e24ac43e
Pin SHA256: GywOQFw+abJS6QwUFlOwMm2eVsf1YRwUO1/FSMC1LEI=
Common names acspace.dedyn.io
Alternative names acspace.dedyn.io *.acspace.dedyn.io
Serial Number 00fecd56b33eef4fb3514971d45f4b938c
Valid from Sat, 13 Sep 2025 00:00:00 UTC
Valid until Fri, 12 Dec 2025 23:59:59 UTC (expires in 1 month and 26 days)
Key EC 256 bits
Weak key (Debian) No
Issuer ZeroSSL ECC Domain Secure Site CA
AIA: http://zerossl.crt.sectigo.com/ZeroSSLECCDomainSecureSiteCA.crt
Signature algorithm SHA384withECDSA
Extended Validation No
Certificate Transparency Yes (certificate)
OCSP Must Staple No
Revocation information OCSP
OCSP: http://zerossl.ocsp.sectigo.com
Revocation status Good (not revoked)
DNS CAA No (more info)
Trusted Yes
Mozilla  Apple  Android  Java  Windows 


Additional Certificates (if supplied)
Certificates provided 3 (2939 bytes)
Chain issues None
#2
Subject ZeroSSL ECC Domain Secure Site CA
Fingerprint SHA256: 5dd661d3cb33b5005cbed045a223ddc4445aaa41d1acb5df700884cad9ba4195
Pin SHA256: 3fLLVjRIWnCqDqIETU2OcnMP7EzmN/Z3Q/jQ8cIaAoc=
Valid until Tue, 29 Jan 2030 23:59:59 UTC (expires in 4 years and 3 months)
Key EC 384 bits
Issuer USERTrust ECC Certification Authority
Signature algorithm SHA384withECDSA
#3
Subject USERTrust ECC Certification Authority
Fingerprint SHA256: a6cf64dbb4c8d5fd19ce48896068db03b533a8d1336c6256a87d00cbb3def3ea
Pin SHA256: ICGRfpgmOUXIWcQ/HXPLQTkFPEFPoDyjvH7ohhQpjzs=
Valid until Sun, 31 Dec 2028 23:59:59 UTC (expires in 3 years and 2 months)
Key EC 384 bits
Issuer AAA Certificate Services
Signature algorithm SHA384withRSA


Certification Paths
Path #1: Trusted
1 Sent by server acspace.dedyn.io
Fingerprint SHA256: c48e58432f0098adbace57ce5432b80e71f89cc0929f82b88fd36e67e24ac43e
Pin SHA256: GywOQFw+abJS6QwUFlOwMm2eVsf1YRwUO1/FSMC1LEI=

EC 256 bits / SHA384withECDSA
2 Sent by server ZeroSSL ECC Domain Secure Site CA
Fingerprint SHA256: 5dd661d3cb33b5005cbed045a223ddc4445aaa41d1acb5df700884cad9ba4195
Pin SHA256: 3fLLVjRIWnCqDqIETU2OcnMP7EzmN/Z3Q/jQ8cIaAoc=

EC 384 bits / SHA384withECDSA
3 In trust store USERTrust ECC Certification Authority   Self-signed
Fingerprint SHA256: 4ff460d54b9c86dabfbcfc5712e0400d2bed3fbc4d4fbdaa86e06adcd2a9ad7a
Pin SHA256: ICGRfpgmOUXIWcQ/HXPLQTkFPEFPoDyjvH7ohhQpjzs=

EC 384 bits / SHA384withECDSA
Path #2: Trusted
1 Sent by server acspace.dedyn.io
Fingerprint SHA256: c48e58432f0098adbace57ce5432b80e71f89cc0929f82b88fd36e67e24ac43e
Pin SHA256: GywOQFw+abJS6QwUFlOwMm2eVsf1YRwUO1/FSMC1LEI=

EC 256 bits / SHA384withECDSA
2 Sent by server ZeroSSL ECC Domain Secure Site CA
Fingerprint SHA256: 5dd661d3cb33b5005cbed045a223ddc4445aaa41d1acb5df700884cad9ba4195
Pin SHA256: 3fLLVjRIWnCqDqIETU2OcnMP7EzmN/Z3Q/jQ8cIaAoc=

EC 384 bits / SHA384withECDSA
3 Sent by server USERTrust ECC Certification Authority
Fingerprint SHA256: a6cf64dbb4c8d5fd19ce48896068db03b533a8d1336c6256a87d00cbb3def3ea
Pin SHA256: ICGRfpgmOUXIWcQ/HXPLQTkFPEFPoDyjvH7ohhQpjzs=

EC 384 bits / SHA384withRSA
4 In trust store AAA Certificate Services   Self-signed
Fingerprint SHA256: d7a7a0fb5d7e2731d771e9484ebcdef71d5f0c3e0a2948782bc83ee0ea699ef4
Pin SHA256: vRU+17BDT2iGsXvOi76E7TQMcTLXAqj0+jGPdW7L1vM=

RSA 2048 bits (e 65537) / SHA1withRSA
Weak or insecure signature, but no impact on root certificate
Path #1: Trusted
1 Sent by server acspace.dedyn.io
Fingerprint SHA256: c48e58432f0098adbace57ce5432b80e71f89cc0929f82b88fd36e67e24ac43e
Pin SHA256: GywOQFw+abJS6QwUFlOwMm2eVsf1YRwUO1/FSMC1LEI=

EC 256 bits / SHA384withECDSA
2 Sent by server ZeroSSL ECC Domain Secure Site CA
Fingerprint SHA256: 5dd661d3cb33b5005cbed045a223ddc4445aaa41d1acb5df700884cad9ba4195
Pin SHA256: 3fLLVjRIWnCqDqIETU2OcnMP7EzmN/Z3Q/jQ8cIaAoc=

EC 384 bits / SHA384withECDSA
3 In trust store USERTrust ECC Certification Authority   Self-signed
Fingerprint SHA256: 4ff460d54b9c86dabfbcfc5712e0400d2bed3fbc4d4fbdaa86e06adcd2a9ad7a
Pin SHA256: ICGRfpgmOUXIWcQ/HXPLQTkFPEFPoDyjvH7ohhQpjzs=

EC 384 bits / SHA384withECDSA
Path #2: Trusted
1 Sent by server acspace.dedyn.io
Fingerprint SHA256: c48e58432f0098adbace57ce5432b80e71f89cc0929f82b88fd36e67e24ac43e
Pin SHA256: GywOQFw+abJS6QwUFlOwMm2eVsf1YRwUO1/FSMC1LEI=

EC 256 bits / SHA384withECDSA
2 Sent by server ZeroSSL ECC Domain Secure Site CA
Fingerprint SHA256: 5dd661d3cb33b5005cbed045a223ddc4445aaa41d1acb5df700884cad9ba4195
Pin SHA256: 3fLLVjRIWnCqDqIETU2OcnMP7EzmN/Z3Q/jQ8cIaAoc=

EC 384 bits / SHA384withECDSA
3 Sent by server USERTrust ECC Certification Authority
Fingerprint SHA256: a6cf64dbb4c8d5fd19ce48896068db03b533a8d1336c6256a87d00cbb3def3ea
Pin SHA256: ICGRfpgmOUXIWcQ/HXPLQTkFPEFPoDyjvH7ohhQpjzs=

EC 384 bits / SHA384withRSA
4 In trust store AAA Certificate Services   Self-signed
Fingerprint SHA256: d7a7a0fb5d7e2731d771e9484ebcdef71d5f0c3e0a2948782bc83ee0ea699ef4
Pin SHA256: vRU+17BDT2iGsXvOi76E7TQMcTLXAqj0+jGPdW7L1vM=

RSA 2048 bits (e 65537) / SHA1withRSA
Weak or insecure signature, but no impact on root certificate
Path #1: Trusted
1 Sent by server acspace.dedyn.io
Fingerprint SHA256: c48e58432f0098adbace57ce5432b80e71f89cc0929f82b88fd36e67e24ac43e
Pin SHA256: GywOQFw+abJS6QwUFlOwMm2eVsf1YRwUO1/FSMC1LEI=

EC 256 bits / SHA384withECDSA
2 Sent by server ZeroSSL ECC Domain Secure Site CA
Fingerprint SHA256: 5dd661d3cb33b5005cbed045a223ddc4445aaa41d1acb5df700884cad9ba4195
Pin SHA256: 3fLLVjRIWnCqDqIETU2OcnMP7EzmN/Z3Q/jQ8cIaAoc=

EC 384 bits / SHA384withECDSA
3 In trust store USERTrust ECC Certification Authority   Self-signed
Fingerprint SHA256: 4ff460d54b9c86dabfbcfc5712e0400d2bed3fbc4d4fbdaa86e06adcd2a9ad7a
Pin SHA256: ICGRfpgmOUXIWcQ/HXPLQTkFPEFPoDyjvH7ohhQpjzs=

EC 384 bits / SHA384withECDSA
Path #2: Trusted
1 Sent by server acspace.dedyn.io
Fingerprint SHA256: c48e58432f0098adbace57ce5432b80e71f89cc0929f82b88fd36e67e24ac43e
Pin SHA256: GywOQFw+abJS6QwUFlOwMm2eVsf1YRwUO1/FSMC1LEI=

EC 256 bits / SHA384withECDSA
2 Sent by server ZeroSSL ECC Domain Secure Site CA
Fingerprint SHA256: 5dd661d3cb33b5005cbed045a223ddc4445aaa41d1acb5df700884cad9ba4195
Pin SHA256: 3fLLVjRIWnCqDqIETU2OcnMP7EzmN/Z3Q/jQ8cIaAoc=

EC 384 bits / SHA384withECDSA
3 Sent by server USERTrust ECC Certification Authority
Fingerprint SHA256: a6cf64dbb4c8d5fd19ce48896068db03b533a8d1336c6256a87d00cbb3def3ea
Pin SHA256: ICGRfpgmOUXIWcQ/HXPLQTkFPEFPoDyjvH7ohhQpjzs=

EC 384 bits / SHA384withRSA
4 In trust store AAA Certificate Services   Self-signed
Fingerprint SHA256: d7a7a0fb5d7e2731d771e9484ebcdef71d5f0c3e0a2948782bc83ee0ea699ef4
Pin SHA256: vRU+17BDT2iGsXvOi76E7TQMcTLXAqj0+jGPdW7L1vM=

RSA 2048 bits (e 65537) / SHA1withRSA
Weak or insecure signature, but no impact on root certificate
Path #1: Trusted
1 Sent by server acspace.dedyn.io
Fingerprint SHA256: c48e58432f0098adbace57ce5432b80e71f89cc0929f82b88fd36e67e24ac43e
Pin SHA256: GywOQFw+abJS6QwUFlOwMm2eVsf1YRwUO1/FSMC1LEI=

EC 256 bits / SHA384withECDSA
2 Sent by server ZeroSSL ECC Domain Secure Site CA
Fingerprint SHA256: 5dd661d3cb33b5005cbed045a223ddc4445aaa41d1acb5df700884cad9ba4195
Pin SHA256: 3fLLVjRIWnCqDqIETU2OcnMP7EzmN/Z3Q/jQ8cIaAoc=

EC 384 bits / SHA384withECDSA
3 In trust store USERTrust ECC Certification Authority   Self-signed
Fingerprint SHA256: 4ff460d54b9c86dabfbcfc5712e0400d2bed3fbc4d4fbdaa86e06adcd2a9ad7a
Pin SHA256: ICGRfpgmOUXIWcQ/HXPLQTkFPEFPoDyjvH7ohhQpjzs=

EC 384 bits / SHA384withECDSA
Path #2: Trusted
1 Sent by server acspace.dedyn.io
Fingerprint SHA256: c48e58432f0098adbace57ce5432b80e71f89cc0929f82b88fd36e67e24ac43e
Pin SHA256: GywOQFw+abJS6QwUFlOwMm2eVsf1YRwUO1/FSMC1LEI=

EC 256 bits / SHA384withECDSA
2 Sent by server ZeroSSL ECC Domain Secure Site CA
Fingerprint SHA256: 5dd661d3cb33b5005cbed045a223ddc4445aaa41d1acb5df700884cad9ba4195
Pin SHA256: 3fLLVjRIWnCqDqIETU2OcnMP7EzmN/Z3Q/jQ8cIaAoc=

EC 384 bits / SHA384withECDSA
3 Sent by server USERTrust ECC Certification Authority
Fingerprint SHA256: a6cf64dbb4c8d5fd19ce48896068db03b533a8d1336c6256a87d00cbb3def3ea
Pin SHA256: ICGRfpgmOUXIWcQ/HXPLQTkFPEFPoDyjvH7ohhQpjzs=

EC 384 bits / SHA384withRSA
4 In trust store AAA Certificate Services   Self-signed
Fingerprint SHA256: d7a7a0fb5d7e2731d771e9484ebcdef71d5f0c3e0a2948782bc83ee0ea699ef4
Pin SHA256: vRU+17BDT2iGsXvOi76E7TQMcTLXAqj0+jGPdW7L1vM=

RSA 2048 bits (e 65537) / SHA1withRSA
Weak or insecure signature, but no impact on root certificate
Path #1: Trusted
1 Sent by server acspace.dedyn.io
Fingerprint SHA256: c48e58432f0098adbace57ce5432b80e71f89cc0929f82b88fd36e67e24ac43e
Pin SHA256: GywOQFw+abJS6QwUFlOwMm2eVsf1YRwUO1/FSMC1LEI=

EC 256 bits / SHA384withECDSA
2 Sent by server ZeroSSL ECC Domain Secure Site CA
Fingerprint SHA256: 5dd661d3cb33b5005cbed045a223ddc4445aaa41d1acb5df700884cad9ba4195
Pin SHA256: 3fLLVjRIWnCqDqIETU2OcnMP7EzmN/Z3Q/jQ8cIaAoc=

EC 384 bits / SHA384withECDSA
3 In trust store USERTrust ECC Certification Authority   Self-signed
Fingerprint SHA256: 4ff460d54b9c86dabfbcfc5712e0400d2bed3fbc4d4fbdaa86e06adcd2a9ad7a
Pin SHA256: ICGRfpgmOUXIWcQ/HXPLQTkFPEFPoDyjvH7ohhQpjzs=

EC 384 bits / SHA384withECDSA
Path #2: Trusted
1 Sent by server acspace.dedyn.io
Fingerprint SHA256: c48e58432f0098adbace57ce5432b80e71f89cc0929f82b88fd36e67e24ac43e
Pin SHA256: GywOQFw+abJS6QwUFlOwMm2eVsf1YRwUO1/FSMC1LEI=

EC 256 bits / SHA384withECDSA
2 Sent by server ZeroSSL ECC Domain Secure Site CA
Fingerprint SHA256: 5dd661d3cb33b5005cbed045a223ddc4445aaa41d1acb5df700884cad9ba4195
Pin SHA256: 3fLLVjRIWnCqDqIETU2OcnMP7EzmN/Z3Q/jQ8cIaAoc=

EC 384 bits / SHA384withECDSA
3 Sent by server USERTrust ECC Certification Authority
Fingerprint SHA256: a6cf64dbb4c8d5fd19ce48896068db03b533a8d1336c6256a87d00cbb3def3ea
Pin SHA256: ICGRfpgmOUXIWcQ/HXPLQTkFPEFPoDyjvH7ohhQpjzs=

EC 384 bits / SHA384withRSA
4 In trust store AAA Certificate Services   Self-signed
Fingerprint SHA256: d7a7a0fb5d7e2731d771e9484ebcdef71d5f0c3e0a2948782bc83ee0ea699ef4
Pin SHA256: vRU+17BDT2iGsXvOi76E7TQMcTLXAqj0+jGPdW7L1vM=

RSA 2048 bits (e 65537) / SHA1withRSA
Weak or insecure signature, but no impact on root certificate

Click here to expand

Certificate #2: EC 256 bits (SHA384withECDSA)
Server Key and Certificate #1
Subject acspace.duckdns.org
Fingerprint SHA256: 4a9b85660d7b58c58884da43366ba8d97edb7fef358b40c95279d14a6545320b
Pin SHA256: ib5T+gYKjgQt7fnB8+9o88+e+13/pjPkQmlRM/7oTCo=
Common names acspace.duckdns.org
Alternative names acspace.duckdns.org   MISMATCH
Serial Number 065eb3f1724749d2f3ffad904051bb266a71
Valid from Thu, 04 Sep 2025 06:12:18 UTC
Valid until Wed, 03 Dec 2025 06:12:17 UTC (expires in 1 month and 17 days)
Key EC 256 bits
Weak key (Debian) No
Issuer E8
AIA: http://e8.i.lencr.org/
Signature algorithm SHA384withECDSA
Extended Validation No
Certificate Transparency Yes (certificate)
OCSP Must Staple No
Revocation information CRL
CRL: http://e8.c.lencr.org/114.crl
Revocation status Good (not revoked)
Trusted No   NOT TRUSTED
Mozilla  Apple  Android  Java  Windows 


Additional Certificates (if supplied)
Certificates provided 2 (2034 bytes)
Chain issues None
#2
Subject E8
Fingerprint SHA256: 83624fd338c8d9b023c18a67cb7a9c0519da43d11775b4c6cbdad45c3d997c52
Pin SHA256: iFvwVyJSxnQdyaUvUERIf+8qk7gRze3612JMwoO3zdU=
Valid until Fri, 12 Mar 2027 23:59:59 UTC (expires in 1 year and 4 months)
Key EC 384 bits
Issuer ISRG Root X1
Signature algorithm SHA256withRSA


Certification Paths
Path #1: Not trusted (invalid certificate [Fingerprint SHA256: 4a9b85660d7b58c58884da43366ba8d97edb7fef358b40c95279d14a6545320b])
1 Sent by server acspace.duckdns.org
Fingerprint SHA256: 4a9b85660d7b58c58884da43366ba8d97edb7fef358b40c95279d14a6545320b
Pin SHA256: ib5T+gYKjgQt7fnB8+9o88+e+13/pjPkQmlRM/7oTCo=

EC 256 bits / SHA384withECDSA
2 Sent by server E8
Fingerprint SHA256: 83624fd338c8d9b023c18a67cb7a9c0519da43d11775b4c6cbdad45c3d997c52
Pin SHA256: iFvwVyJSxnQdyaUvUERIf+8qk7gRze3612JMwoO3zdU=

EC 384 bits / SHA256withRSA
3 In trust store ISRG Root X1   Self-signed
Fingerprint SHA256: 96bcec06264976f37460779acf28c5a7cfe8a3c0aae11a8ffcee05c0bddf08c6
Pin SHA256: C5+lpZ7tcVwmwQIMcRtPbsQtWLABXhQzejna0wHFr8M=

RSA 4096 bits (e 65537) / SHA256withRSA
Path #1: Not trusted (invalid certificate [Fingerprint SHA256: 4a9b85660d7b58c58884da43366ba8d97edb7fef358b40c95279d14a6545320b])
1 Sent by server acspace.duckdns.org
Fingerprint SHA256: 4a9b85660d7b58c58884da43366ba8d97edb7fef358b40c95279d14a6545320b
Pin SHA256: ib5T+gYKjgQt7fnB8+9o88+e+13/pjPkQmlRM/7oTCo=

EC 256 bits / SHA384withECDSA
2 Sent by server E8
Fingerprint SHA256: 83624fd338c8d9b023c18a67cb7a9c0519da43d11775b4c6cbdad45c3d997c52
Pin SHA256: iFvwVyJSxnQdyaUvUERIf+8qk7gRze3612JMwoO3zdU=

EC 384 bits / SHA256withRSA
3 In trust store ISRG Root X1   Self-signed
Fingerprint SHA256: 96bcec06264976f37460779acf28c5a7cfe8a3c0aae11a8ffcee05c0bddf08c6
Pin SHA256: C5+lpZ7tcVwmwQIMcRtPbsQtWLABXhQzejna0wHFr8M=

RSA 4096 bits (e 65537) / SHA256withRSA
Path #1: Not trusted (invalid certificate [Fingerprint SHA256: 4a9b85660d7b58c58884da43366ba8d97edb7fef358b40c95279d14a6545320b])
1 Sent by server acspace.duckdns.org
Fingerprint SHA256: 4a9b85660d7b58c58884da43366ba8d97edb7fef358b40c95279d14a6545320b
Pin SHA256: ib5T+gYKjgQt7fnB8+9o88+e+13/pjPkQmlRM/7oTCo=

EC 256 bits / SHA384withECDSA
2 Sent by server E8
Fingerprint SHA256: 83624fd338c8d9b023c18a67cb7a9c0519da43d11775b4c6cbdad45c3d997c52
Pin SHA256: iFvwVyJSxnQdyaUvUERIf+8qk7gRze3612JMwoO3zdU=

EC 384 bits / SHA256withRSA
3 In trust store ISRG Root X1   Self-signed
Fingerprint SHA256: 96bcec06264976f37460779acf28c5a7cfe8a3c0aae11a8ffcee05c0bddf08c6
Pin SHA256: C5+lpZ7tcVwmwQIMcRtPbsQtWLABXhQzejna0wHFr8M=

RSA 4096 bits (e 65537) / SHA256withRSA
Path #1: Not trusted (invalid certificate [Fingerprint SHA256: 4a9b85660d7b58c58884da43366ba8d97edb7fef358b40c95279d14a6545320b])
1 Sent by server acspace.duckdns.org
Fingerprint SHA256: 4a9b85660d7b58c58884da43366ba8d97edb7fef358b40c95279d14a6545320b
Pin SHA256: ib5T+gYKjgQt7fnB8+9o88+e+13/pjPkQmlRM/7oTCo=

EC 256 bits / SHA384withECDSA
2 Sent by server E8
Fingerprint SHA256: 83624fd338c8d9b023c18a67cb7a9c0519da43d11775b4c6cbdad45c3d997c52
Pin SHA256: iFvwVyJSxnQdyaUvUERIf+8qk7gRze3612JMwoO3zdU=

EC 384 bits / SHA256withRSA
3 In trust store ISRG Root X1   Self-signed
Fingerprint SHA256: 96bcec06264976f37460779acf28c5a7cfe8a3c0aae11a8ffcee05c0bddf08c6
Pin SHA256: C5+lpZ7tcVwmwQIMcRtPbsQtWLABXhQzejna0wHFr8M=

RSA 4096 bits (e 65537) / SHA256withRSA
Path #1: Not trusted (invalid certificate [Fingerprint SHA256: 4a9b85660d7b58c58884da43366ba8d97edb7fef358b40c95279d14a6545320b])
1 Sent by server acspace.duckdns.org
Fingerprint SHA256: 4a9b85660d7b58c58884da43366ba8d97edb7fef358b40c95279d14a6545320b
Pin SHA256: ib5T+gYKjgQt7fnB8+9o88+e+13/pjPkQmlRM/7oTCo=

EC 256 bits / SHA384withECDSA
2 Sent by server E8
Fingerprint SHA256: 83624fd338c8d9b023c18a67cb7a9c0519da43d11775b4c6cbdad45c3d997c52
Pin SHA256: iFvwVyJSxnQdyaUvUERIf+8qk7gRze3612JMwoO3zdU=

EC 384 bits / SHA256withRSA
3 In trust store ISRG Root X1   Self-signed
Fingerprint SHA256: 96bcec06264976f37460779acf28c5a7cfe8a3c0aae11a8ffcee05c0bddf08c6
Pin SHA256: C5+lpZ7tcVwmwQIMcRtPbsQtWLABXhQzejna0wHFr8M=

RSA 4096 bits (e 65537) / SHA256withRSA

Click here to expand

Click here to expand

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)

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
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) 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)
Supported Named Groups x25519, secp256r1, secp384r1, secp521r1, ffdhe2048, ffdhe3072 (server preferred order)
SSL 2 handshake compatibility No
0-RTT enabled Yes


HTTP Requests
1 https://acspace.dedyn.io/  (HTTP/1.1 200 OK)
1
Server nginx/1.29.2
Date Thu, 16 Oct 2025 01:23:36 GMT
Content-Type text/html
Transfer-Encoding chunked
Connection close
Vary Accept-Encoding
Alt-Svc h3=":443"; ma=86400


Miscellaneous
Test date Thu, 16 Oct 2025 01:23:27 UTC
Test duration 32.563 seconds
HTTP status code 200
HTTP server signature nginx/1.29.2
Server hostname 183178200138.ctinets.com


SSL Report v2.4.1