Development version and work in progress. Might not work properly and could go down at any time. For the real thing visit www.ssllabs.com instead.
SSL Report: sync.madnet.ru (78.140.184.98)
Assessed on:  Sun, 20 Oct 2019 06:39:19 UTC | Clear cache

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
T
If trust issues are ignored: 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 is not trusted, see below for details.
This server supports weak Diffie-Hellman (DH) key exchange parameters. Grade capped to B.   MORE INFO »
This server supports TLS 1.0 and TLS 1.1. Grade will be capped to B from March 2020. MORE INFO »
This site works only in browsers with SNI support.
Certificate #1: RSA 2048 bits (SHA256withRSA)
Server Key and Certificate #1
Subject madnetex.com
Fingerprint SHA256: d52b1fd8f6845be7ef2dc7eaf7f0f59a6acfd47be09260af3a04378f6903aedd
Pin SHA256: Q/eCVvjxFsUXATd9sHMHZQ/EA8V6Ulv5Cp+qN9ZQVJs=
Common names madnetex.com
Alternative names dsp.madnet.ru dsp1.madnet.ru dsp2.madnet.ru madnet.ru madnetex.com p.madnet.ru profile.madnet.ru support.madnetex.com sync.madnet.ru websdk.dev.madnet.ru www.madnetex.com
Serial Number 03d1cc1b9071964ed0fb9b456113083a2fb8
Valid from Sat, 22 Apr 2017 09:01:00 UTC
Valid until Fri, 21 Jul 2017 09:01:00 UTC (expired 2 years and 2 months ago)   EXPIRED
Key RSA 2048 bits (e 65537)
Weak key (Debian) No
Issuer Let's Encrypt Authority X3
AIA: http://cert.int-x3.letsencrypt.org/
Signature algorithm SHA256withRSA
Extended Validation No
Certificate Transparency No
OCSP Must Staple No
Revocation information OCSP
OCSP: http://ocsp.int-x3.letsencrypt.org/
Revocation status Unchecked (only trusted certificates can be checked)
DNS CAA No (more info)
Trusted No   NOT TRUSTED (Why?)
Mozilla  Apple  Android  Java  Windows 


Additional Certificates (if supplied)
Certificates provided 2 (2625 bytes)
Chain issues None
#2
Subject Let's Encrypt Authority X3
Fingerprint SHA256: 25847d668eb4f04fdd40b12b6b0740c567da7d024308eb6c2c96fe41d9de218d
Pin SHA256: YLh1dUR9y6Kja30RrAn7JKnbQG/uEtLMkBgFF2Fuihg=
Valid until Wed, 17 Mar 2021 16:40:46 UTC (expires in 1 year and 4 months)
Key RSA 2048 bits (e 65537)
Issuer DST Root CA X3
Signature algorithm SHA256withRSA


Certification Paths
Path #1: Not trusted (validity check failed)
1 Sent by server madnetex.com
Fingerprint SHA256: d52b1fd8f6845be7ef2dc7eaf7f0f59a6acfd47be09260af3a04378f6903aedd
Pin SHA256: Q/eCVvjxFsUXATd9sHMHZQ/EA8V6Ulv5Cp+qN9ZQVJs=

RSA 2048 bits (e 65537) / SHA256withRSA
Valid until: Fri, 21 Jul 2017 09:01:00 UTC
EXPIRED
2 Sent by server Let's Encrypt Authority X3
Fingerprint SHA256: 25847d668eb4f04fdd40b12b6b0740c567da7d024308eb6c2c96fe41d9de218d
Pin SHA256: YLh1dUR9y6Kja30RrAn7JKnbQG/uEtLMkBgFF2Fuihg=

RSA 2048 bits (e 65537) / SHA256withRSA
3 In trust store DST Root CA X3   Self-signed
Fingerprint SHA256: 0687260331a72403d909f105e69bcf0d32e1bd2493ffc6d9206d11bcd6770739
Pin SHA256: Vjs8r4z+80wjNcr1YKepWQboSIRi63WsWXhIMN+eWys=

RSA 2048 bits (e 65537) / SHA1withRSA
Weak or insecure signature, but no impact on root certificate
Path #1: Not trusted (validity check failed)
1 Sent by server madnetex.com
Fingerprint SHA256: d52b1fd8f6845be7ef2dc7eaf7f0f59a6acfd47be09260af3a04378f6903aedd
Pin SHA256: Q/eCVvjxFsUXATd9sHMHZQ/EA8V6Ulv5Cp+qN9ZQVJs=

RSA 2048 bits (e 65537) / SHA256withRSA
Valid until: Fri, 21 Jul 2017 09:01:00 UTC
EXPIRED
2 Sent by server Let's Encrypt Authority X3
Fingerprint SHA256: 25847d668eb4f04fdd40b12b6b0740c567da7d024308eb6c2c96fe41d9de218d
Pin SHA256: YLh1dUR9y6Kja30RrAn7JKnbQG/uEtLMkBgFF2Fuihg=

RSA 2048 bits (e 65537) / SHA256withRSA
3 In trust store DST Root CA X3   Self-signed
Fingerprint SHA256: 0687260331a72403d909f105e69bcf0d32e1bd2493ffc6d9206d11bcd6770739
Pin SHA256: Vjs8r4z+80wjNcr1YKepWQboSIRi63WsWXhIMN+eWys=

RSA 2048 bits (e 65537) / SHA1withRSA
Weak or insecure signature, but no impact on root certificate
Path #1: Not trusted (validity check failed)
1 Sent by server madnetex.com
Fingerprint SHA256: d52b1fd8f6845be7ef2dc7eaf7f0f59a6acfd47be09260af3a04378f6903aedd
Pin SHA256: Q/eCVvjxFsUXATd9sHMHZQ/EA8V6Ulv5Cp+qN9ZQVJs=

RSA 2048 bits (e 65537) / SHA256withRSA
Valid until: Fri, 21 Jul 2017 09:01:00 UTC
EXPIRED
2 Sent by server Let's Encrypt Authority X3
Fingerprint SHA256: 25847d668eb4f04fdd40b12b6b0740c567da7d024308eb6c2c96fe41d9de218d
Pin SHA256: YLh1dUR9y6Kja30RrAn7JKnbQG/uEtLMkBgFF2Fuihg=

RSA 2048 bits (e 65537) / SHA256withRSA
3 In trust store DST Root CA X3   Self-signed
Fingerprint SHA256: 0687260331a72403d909f105e69bcf0d32e1bd2493ffc6d9206d11bcd6770739
Pin SHA256: Vjs8r4z+80wjNcr1YKepWQboSIRi63WsWXhIMN+eWys=

RSA 2048 bits (e 65537) / SHA1withRSA
Weak or insecure signature, but no impact on root certificate
Path #1: Not trusted (validity check failed)
1 Sent by server madnetex.com
Fingerprint SHA256: d52b1fd8f6845be7ef2dc7eaf7f0f59a6acfd47be09260af3a04378f6903aedd
Pin SHA256: Q/eCVvjxFsUXATd9sHMHZQ/EA8V6Ulv5Cp+qN9ZQVJs=

RSA 2048 bits (e 65537) / SHA256withRSA
Valid until: Fri, 21 Jul 2017 09:01:00 UTC
EXPIRED
2 Sent by server Let's Encrypt Authority X3
Fingerprint SHA256: 25847d668eb4f04fdd40b12b6b0740c567da7d024308eb6c2c96fe41d9de218d
Pin SHA256: YLh1dUR9y6Kja30RrAn7JKnbQG/uEtLMkBgFF2Fuihg=

RSA 2048 bits (e 65537) / SHA256withRSA
3 In trust store DST Root CA X3   Self-signed
Fingerprint SHA256: 0687260331a72403d909f105e69bcf0d32e1bd2493ffc6d9206d11bcd6770739
Pin SHA256: Vjs8r4z+80wjNcr1YKepWQboSIRi63WsWXhIMN+eWys=

RSA 2048 bits (e 65537) / SHA1withRSA
Weak or insecure signature, but no impact on root certificate
Path #1: Not trusted (validity check failed)
1 Sent by server madnetex.com
Fingerprint SHA256: d52b1fd8f6845be7ef2dc7eaf7f0f59a6acfd47be09260af3a04378f6903aedd
Pin SHA256: Q/eCVvjxFsUXATd9sHMHZQ/EA8V6Ulv5Cp+qN9ZQVJs=

RSA 2048 bits (e 65537) / SHA256withRSA
Valid until: Fri, 21 Jul 2017 09:01:00 UTC
EXPIRED
2 Sent by server Let's Encrypt Authority X3
Fingerprint SHA256: 25847d668eb4f04fdd40b12b6b0740c567da7d024308eb6c2c96fe41d9de218d
Pin SHA256: YLh1dUR9y6Kja30RrAn7JKnbQG/uEtLMkBgFF2Fuihg=

RSA 2048 bits (e 65537) / SHA256withRSA
3 In trust store DST Root CA X3   Self-signed
Fingerprint SHA256: 0687260331a72403d909f105e69bcf0d32e1bd2493ffc6d9206d11bcd6770739
Pin SHA256: Vjs8r4z+80wjNcr1YKepWQboSIRi63WsWXhIMN+eWys=

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

Click here to expand

Certificate #2: RSA 2048 bits (SHA256withRSA)
Server Key and Certificate #1
Subject cityads.com
Fingerprint SHA256: bbdb453c48052a264743cecd46002870d898194e6d16f8812147963aed58d7af
Pin SHA256: RZREQNmt43CmmgZspwEYiGfX+FYVf+Jo81RsuvRyXiM=
Common names cityads.com
Alternative names cityads.com *.cityads.com *.cityads.ru *.cityads.team *.cityadslink.com *.cityadspix.com *.cityadstrack.com *.cityviplink.com *.mcityadslink.com cityads.ru cityads.team cityadslink.com cityadspix.com cityadstrack.com cityviplink.com mcityadslink.com   MISMATCH
Serial Number 009b3633958c9cb0496864bd7c4b810042
Valid from Mon, 22 Jul 2019 00:00:00 UTC
Valid until Fri, 21 Aug 2020 23:59:59 UTC (expires in 10 months and 1 day)
Key RSA 2048 bits (e 65537)
Weak key (Debian) No
Issuer Sectigo RSA Domain Validation Secure Server CA
AIA: http://crt.sectigo.com/SectigoRSADomainValidationSecureServerCA.crt
Signature algorithm SHA256withRSA
Extended Validation No
Certificate Transparency Yes (certificate)
OCSP Must Staple No
Revocation information OCSP
OCSP: http://ocsp.sectigo.com
Revocation status Good (not revoked)
Trusted No   NOT TRUSTED (Why?)
Mozilla  Apple  Android  Java  Windows 


Additional Certificates (if supplied)
Certificates provided 3 (4854 bytes)
Chain issues Contains anchor
#2
Subject Sectigo RSA Domain Validation Secure Server CA
Fingerprint SHA256: 7fa4ff68ec04a99d7528d5085f94907f4d1dd1c5381bacdc832ed5c960214676
Pin SHA256: 4a6cPehI7OG6cuDZka5NDZ7FR8a60d3auda+sKfg4Ng=
Valid until Tue, 31 Dec 2030 23:59:59 UTC (expires in 11 years and 2 months)
Key RSA 2048 bits (e 65537)
Issuer USERTrust RSA Certification Authority
Signature algorithm SHA384withRSA
#3
Subject USERTrust RSA Certification Authority   In trust store
Fingerprint SHA256: e793c9b02fd8aa13e21c31228accb08119643b749c898964b1746d46c3d4cbd2
Pin SHA256: x4QzPSC810K5/cMjb05Qm4k3Bw5zBn4lTdO/nEW/Td4=
Valid until Mon, 18 Jan 2038 23:59:59 UTC (expires in 18 years and 2 months)
Key RSA 4096 bits (e 65537)
Issuer USERTrust RSA Certification Authority   Self-signed
Signature algorithm SHA384withRSA


Certification Paths
Path #1: Not trusted (invalid certificate [Fingerprint SHA256: bbdb453c48052a264743cecd46002870d898194e6d16f8812147963aed58d7af])
1 Sent by server cityads.com
Fingerprint SHA256: bbdb453c48052a264743cecd46002870d898194e6d16f8812147963aed58d7af
Pin SHA256: RZREQNmt43CmmgZspwEYiGfX+FYVf+Jo81RsuvRyXiM=

RSA 2048 bits (e 65537) / SHA256withRSA
2 Sent by server Sectigo RSA Domain Validation Secure Server CA
Fingerprint SHA256: 7fa4ff68ec04a99d7528d5085f94907f4d1dd1c5381bacdc832ed5c960214676
Pin SHA256: 4a6cPehI7OG6cuDZka5NDZ7FR8a60d3auda+sKfg4Ng=

RSA 2048 bits (e 65537) / SHA384withRSA
CRL ERROR: IOException occurred
3 Sent by server
In trust store
USERTrust RSA Certification Authority   Self-signed
Fingerprint SHA256: e793c9b02fd8aa13e21c31228accb08119643b749c898964b1746d46c3d4cbd2
Pin SHA256: x4QzPSC810K5/cMjb05Qm4k3Bw5zBn4lTdO/nEW/Td4=

RSA 4096 bits (e 65537) / SHA384withRSA
Path #2: Not trusted (invalid certificate [Fingerprint SHA256: bbdb453c48052a264743cecd46002870d898194e6d16f8812147963aed58d7af])
1 Sent by server cityads.com
Fingerprint SHA256: bbdb453c48052a264743cecd46002870d898194e6d16f8812147963aed58d7af
Pin SHA256: RZREQNmt43CmmgZspwEYiGfX+FYVf+Jo81RsuvRyXiM=

RSA 2048 bits (e 65537) / SHA256withRSA
2 Sent by server Sectigo RSA Domain Validation Secure Server CA
Fingerprint SHA256: 7fa4ff68ec04a99d7528d5085f94907f4d1dd1c5381bacdc832ed5c960214676
Pin SHA256: 4a6cPehI7OG6cuDZka5NDZ7FR8a60d3auda+sKfg4Ng=

RSA 2048 bits (e 65537) / SHA384withRSA
CRL ERROR: IOException occurred
3 Extra download USERTrust RSA Certification Authority
Fingerprint SHA256: 1a5174980a294a528a110726d5855650266c48d9883bea692b67b6d726da98c5
Pin SHA256: x4QzPSC810K5/cMjb05Qm4k3Bw5zBn4lTdO/nEW/Td4=

RSA 4096 bits (e 65537) / SHA384withRSA
CRL ERROR: IOException occurred
4 In trust store AddTrust External CA Root   Self-signed
Fingerprint SHA256: 687fa451382278fff0c8b11f8d43d576671c6eb2bceab413fb83d965d06d2ff2
Pin SHA256: lCppFqbkrlJ3EcVFAkeip0+44VaoJUymbnOaEUk7tEU=

RSA 2048 bits (e 65537) / SHA1withRSA
Weak or insecure signature, but no impact on root certificate
Path #1: Not trusted (invalid certificate [Fingerprint SHA256: bbdb453c48052a264743cecd46002870d898194e6d16f8812147963aed58d7af])
1 Sent by server cityads.com
Fingerprint SHA256: bbdb453c48052a264743cecd46002870d898194e6d16f8812147963aed58d7af
Pin SHA256: RZREQNmt43CmmgZspwEYiGfX+FYVf+Jo81RsuvRyXiM=

RSA 2048 bits (e 65537) / SHA256withRSA
2 Sent by server Sectigo RSA Domain Validation Secure Server CA
Fingerprint SHA256: 7fa4ff68ec04a99d7528d5085f94907f4d1dd1c5381bacdc832ed5c960214676
Pin SHA256: 4a6cPehI7OG6cuDZka5NDZ7FR8a60d3auda+sKfg4Ng=

RSA 2048 bits (e 65537) / SHA384withRSA
CRL ERROR: IOException occurred
3 Sent by server
In trust store
USERTrust RSA Certification Authority   Self-signed
Fingerprint SHA256: e793c9b02fd8aa13e21c31228accb08119643b749c898964b1746d46c3d4cbd2
Pin SHA256: x4QzPSC810K5/cMjb05Qm4k3Bw5zBn4lTdO/nEW/Td4=

RSA 4096 bits (e 65537) / SHA384withRSA
Path #2: Not trusted (invalid certificate [Fingerprint SHA256: bbdb453c48052a264743cecd46002870d898194e6d16f8812147963aed58d7af])
1 Sent by server cityads.com
Fingerprint SHA256: bbdb453c48052a264743cecd46002870d898194e6d16f8812147963aed58d7af
Pin SHA256: RZREQNmt43CmmgZspwEYiGfX+FYVf+Jo81RsuvRyXiM=

RSA 2048 bits (e 65537) / SHA256withRSA
2 Sent by server Sectigo RSA Domain Validation Secure Server CA
Fingerprint SHA256: 7fa4ff68ec04a99d7528d5085f94907f4d1dd1c5381bacdc832ed5c960214676
Pin SHA256: 4a6cPehI7OG6cuDZka5NDZ7FR8a60d3auda+sKfg4Ng=

RSA 2048 bits (e 65537) / SHA384withRSA
CRL ERROR: IOException occurred
3 Extra download USERTrust RSA Certification Authority
Fingerprint SHA256: 1a5174980a294a528a110726d5855650266c48d9883bea692b67b6d726da98c5
Pin SHA256: x4QzPSC810K5/cMjb05Qm4k3Bw5zBn4lTdO/nEW/Td4=

RSA 4096 bits (e 65537) / SHA384withRSA
CRL ERROR: IOException occurred
4 In trust store AddTrust External CA Root   Self-signed
Fingerprint SHA256: 687fa451382278fff0c8b11f8d43d576671c6eb2bceab413fb83d965d06d2ff2
Pin SHA256: lCppFqbkrlJ3EcVFAkeip0+44VaoJUymbnOaEUk7tEU=

RSA 2048 bits (e 65537) / SHA1withRSA
Weak or insecure signature, but no impact on root certificate
Path #1: Not trusted (invalid certificate [Fingerprint SHA256: bbdb453c48052a264743cecd46002870d898194e6d16f8812147963aed58d7af])
1 Sent by server cityads.com
Fingerprint SHA256: bbdb453c48052a264743cecd46002870d898194e6d16f8812147963aed58d7af
Pin SHA256: RZREQNmt43CmmgZspwEYiGfX+FYVf+Jo81RsuvRyXiM=

RSA 2048 bits (e 65537) / SHA256withRSA
2 Sent by server Sectigo RSA Domain Validation Secure Server CA
Fingerprint SHA256: 7fa4ff68ec04a99d7528d5085f94907f4d1dd1c5381bacdc832ed5c960214676
Pin SHA256: 4a6cPehI7OG6cuDZka5NDZ7FR8a60d3auda+sKfg4Ng=

RSA 2048 bits (e 65537) / SHA384withRSA
CRL ERROR: IOException occurred
3 Sent by server
In trust store
USERTrust RSA Certification Authority   Self-signed
Fingerprint SHA256: e793c9b02fd8aa13e21c31228accb08119643b749c898964b1746d46c3d4cbd2
Pin SHA256: x4QzPSC810K5/cMjb05Qm4k3Bw5zBn4lTdO/nEW/Td4=

RSA 4096 bits (e 65537) / SHA384withRSA
Path #2: Not trusted (invalid certificate [Fingerprint SHA256: bbdb453c48052a264743cecd46002870d898194e6d16f8812147963aed58d7af])
1 Sent by server cityads.com
Fingerprint SHA256: bbdb453c48052a264743cecd46002870d898194e6d16f8812147963aed58d7af
Pin SHA256: RZREQNmt43CmmgZspwEYiGfX+FYVf+Jo81RsuvRyXiM=

RSA 2048 bits (e 65537) / SHA256withRSA
2 Sent by server Sectigo RSA Domain Validation Secure Server CA
Fingerprint SHA256: 7fa4ff68ec04a99d7528d5085f94907f4d1dd1c5381bacdc832ed5c960214676
Pin SHA256: 4a6cPehI7OG6cuDZka5NDZ7FR8a60d3auda+sKfg4Ng=

RSA 2048 bits (e 65537) / SHA384withRSA
CRL ERROR: IOException occurred
3 Extra download USERTrust RSA Certification Authority
Fingerprint SHA256: 1a5174980a294a528a110726d5855650266c48d9883bea692b67b6d726da98c5
Pin SHA256: x4QzPSC810K5/cMjb05Qm4k3Bw5zBn4lTdO/nEW/Td4=

RSA 4096 bits (e 65537) / SHA384withRSA
CRL ERROR: IOException occurred
4 In trust store AddTrust External CA Root   Self-signed
Fingerprint SHA256: 687fa451382278fff0c8b11f8d43d576671c6eb2bceab413fb83d965d06d2ff2
Pin SHA256: lCppFqbkrlJ3EcVFAkeip0+44VaoJUymbnOaEUk7tEU=

RSA 2048 bits (e 65537) / SHA1withRSA
Weak or insecure signature, but no impact on root certificate
Path #1: Not trusted (invalid certificate [Fingerprint SHA256: bbdb453c48052a264743cecd46002870d898194e6d16f8812147963aed58d7af])
1 Sent by server cityads.com
Fingerprint SHA256: bbdb453c48052a264743cecd46002870d898194e6d16f8812147963aed58d7af
Pin SHA256: RZREQNmt43CmmgZspwEYiGfX+FYVf+Jo81RsuvRyXiM=

RSA 2048 bits (e 65537) / SHA256withRSA
2 Sent by server Sectigo RSA Domain Validation Secure Server CA
Fingerprint SHA256: 7fa4ff68ec04a99d7528d5085f94907f4d1dd1c5381bacdc832ed5c960214676
Pin SHA256: 4a6cPehI7OG6cuDZka5NDZ7FR8a60d3auda+sKfg4Ng=

RSA 2048 bits (e 65537) / SHA384withRSA
CRL ERROR: IOException occurred
3 Sent by server
In trust store
USERTrust RSA Certification Authority   Self-signed
Fingerprint SHA256: e793c9b02fd8aa13e21c31228accb08119643b749c898964b1746d46c3d4cbd2
Pin SHA256: x4QzPSC810K5/cMjb05Qm4k3Bw5zBn4lTdO/nEW/Td4=

RSA 4096 bits (e 65537) / SHA384withRSA
Path #2: Not trusted (invalid certificate [Fingerprint SHA256: bbdb453c48052a264743cecd46002870d898194e6d16f8812147963aed58d7af])
1 Sent by server cityads.com
Fingerprint SHA256: bbdb453c48052a264743cecd46002870d898194e6d16f8812147963aed58d7af
Pin SHA256: RZREQNmt43CmmgZspwEYiGfX+FYVf+Jo81RsuvRyXiM=

RSA 2048 bits (e 65537) / SHA256withRSA
2 Sent by server Sectigo RSA Domain Validation Secure Server CA
Fingerprint SHA256: 7fa4ff68ec04a99d7528d5085f94907f4d1dd1c5381bacdc832ed5c960214676
Pin SHA256: 4a6cPehI7OG6cuDZka5NDZ7FR8a60d3auda+sKfg4Ng=

RSA 2048 bits (e 65537) / SHA384withRSA
CRL ERROR: IOException occurred
3 Extra download USERTrust RSA Certification Authority
Fingerprint SHA256: 1a5174980a294a528a110726d5855650266c48d9883bea692b67b6d726da98c5
Pin SHA256: x4QzPSC810K5/cMjb05Qm4k3Bw5zBn4lTdO/nEW/Td4=

RSA 4096 bits (e 65537) / SHA384withRSA
CRL ERROR: IOException occurred
4 In trust store AddTrust External CA Root   Self-signed
Fingerprint SHA256: 687fa451382278fff0c8b11f8d43d576671c6eb2bceab413fb83d965d06d2ff2
Pin SHA256: lCppFqbkrlJ3EcVFAkeip0+44VaoJUymbnOaEUk7tEU=

RSA 2048 bits (e 65537) / SHA1withRSA
Weak or insecure signature, but no impact on root certificate
Path #1: Not trusted (invalid certificate [Fingerprint SHA256: bbdb453c48052a264743cecd46002870d898194e6d16f8812147963aed58d7af])
1 Sent by server cityads.com
Fingerprint SHA256: bbdb453c48052a264743cecd46002870d898194e6d16f8812147963aed58d7af
Pin SHA256: RZREQNmt43CmmgZspwEYiGfX+FYVf+Jo81RsuvRyXiM=

RSA 2048 bits (e 65537) / SHA256withRSA
2 Sent by server Sectigo RSA Domain Validation Secure Server CA
Fingerprint SHA256: 7fa4ff68ec04a99d7528d5085f94907f4d1dd1c5381bacdc832ed5c960214676
Pin SHA256: 4a6cPehI7OG6cuDZka5NDZ7FR8a60d3auda+sKfg4Ng=

RSA 2048 bits (e 65537) / SHA384withRSA
CRL ERROR: IOException occurred
3 Sent by server
In trust store
USERTrust RSA Certification Authority   Self-signed
Fingerprint SHA256: e793c9b02fd8aa13e21c31228accb08119643b749c898964b1746d46c3d4cbd2
Pin SHA256: x4QzPSC810K5/cMjb05Qm4k3Bw5zBn4lTdO/nEW/Td4=

RSA 4096 bits (e 65537) / SHA384withRSA
Path #2: Not trusted (invalid certificate [Fingerprint SHA256: bbdb453c48052a264743cecd46002870d898194e6d16f8812147963aed58d7af])
1 Sent by server cityads.com
Fingerprint SHA256: bbdb453c48052a264743cecd46002870d898194e6d16f8812147963aed58d7af
Pin SHA256: RZREQNmt43CmmgZspwEYiGfX+FYVf+Jo81RsuvRyXiM=

RSA 2048 bits (e 65537) / SHA256withRSA
2 Sent by server Sectigo RSA Domain Validation Secure Server CA
Fingerprint SHA256: 7fa4ff68ec04a99d7528d5085f94907f4d1dd1c5381bacdc832ed5c960214676
Pin SHA256: 4a6cPehI7OG6cuDZka5NDZ7FR8a60d3auda+sKfg4Ng=

RSA 2048 bits (e 65537) / SHA384withRSA
CRL ERROR: IOException occurred
3 Extra download USERTrust RSA Certification Authority
Fingerprint SHA256: 1a5174980a294a528a110726d5855650266c48d9883bea692b67b6d726da98c5
Pin SHA256: x4QzPSC810K5/cMjb05Qm4k3Bw5zBn4lTdO/nEW/Td4=

RSA 4096 bits (e 65537) / SHA384withRSA
CRL ERROR: IOException occurred
4 In trust store AddTrust External CA Root   Self-signed
Fingerprint SHA256: 687fa451382278fff0c8b11f8d43d576671c6eb2bceab413fb83d965d06d2ff2
Pin SHA256: lCppFqbkrlJ3EcVFAkeip0+44VaoJUymbnOaEUk7tEU=

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

Click here to expand

Click here to expand

Configuration
Protocols
TLS 1.3 No
TLS 1.2 Yes
TLS 1.1 Yes
TLS 1.0 Yes
SSL 3 No
SSL 2 No
For TLS 1.3 tests, we only support RFC 8446.


Cipher Suites
# TLS 1.2 (suites in server-preferred order)
TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (0xc02f)   ECDH secp256r1 (eq. 3072 bits RSA)   FS 128
TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (0xc030)   ECDH secp256r1 (eq. 3072 bits RSA)   FS 256
TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 (0xcca8)   ECDH secp256r1 (eq. 3072 bits RSA)   FS 256
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 (0xc028)   ECDH secp256r1 (eq. 3072 bits RSA)   FS   WEAK 256
TLS_ECDHE_RSA_WITH_CAMELLIA_256_CBC_SHA384 (0xc077)   ECDH secp256r1 (eq. 3072 bits RSA)   FS   WEAK 256
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 (0xc027)   ECDH secp256r1 (eq. 3072 bits RSA)   FS   WEAK 128
TLS_ECDHE_RSA_WITH_CAMELLIA_128_CBC_SHA256 (0xc076)   ECDH secp256r1 (eq. 3072 bits RSA)   FS   WEAK 128
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA (0xc014)   ECDH secp256r1 (eq. 3072 bits RSA)   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_256_GCM_SHA384 (0x9f)   DH 1024 bits   FS   WEAK 256
TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256 (0xccaa)   DH 1024 bits   FS   WEAK 256
TLS_DHE_RSA_WITH_AES_256_CCM_8 (0xc0a3)   DH 1024 bits   FS   WEAK 256
TLS_DHE_RSA_WITH_AES_256_CCM (0xc09f)   DH 1024 bits   FS   WEAK 256
TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 (0x9e)   DH 1024 bits   FS   WEAK 128
TLS_DHE_RSA_WITH_AES_128_CCM_8 (0xc0a2)   DH 1024 bits   FS   WEAK 128
TLS_DHE_RSA_WITH_AES_128_CCM (0xc09e)   DH 1024 bits   FS   WEAK 128
TLS_DHE_RSA_WITH_AES_256_CBC_SHA256 (0x6b)   DH 1024 bits   FS   WEAK 256
TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256 (0xc4)   DH 1024 bits   FS   WEAK 256
TLS_DHE_RSA_WITH_AES_128_CBC_SHA256 (0x67)   DH 1024 bits   FS   WEAK 128
TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256 (0xbe)   DH 1024 bits   FS   WEAK 128
TLS_DHE_RSA_WITH_AES_256_CBC_SHA (0x39)   DH 1024 bits   FS   WEAK 256
TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA (0x88)   DH 1024 bits   FS   WEAK 256
TLS_DHE_RSA_WITH_AES_128_CBC_SHA (0x33)   DH 1024 bits   FS   WEAK 128
TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA (0x45)   DH 1024 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_ECDHE_RSA_WITH_AES_128_CBC_SHA (0xc013)   ECDH secp256r1 (eq. 3072 bits RSA)   FS   WEAK 128
TLS_DHE_RSA_WITH_AES_256_CBC_SHA (0x39)   DH 1024 bits   FS   WEAK 256
TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA (0x88)   DH 1024 bits   FS   WEAK 256
TLS_DHE_RSA_WITH_AES_128_CBC_SHA (0x33)   DH 1024 bits   FS   WEAK 128
TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA (0x45)   DH 1024 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_ECDHE_RSA_WITH_AES_128_CBC_SHA (0xc013)   ECDH secp256r1 (eq. 3072 bits RSA)   FS   WEAK 128
TLS_DHE_RSA_WITH_AES_256_CBC_SHA (0x39)   DH 1024 bits   FS   WEAK 256
TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA (0x88)   DH 1024 bits   FS   WEAK 256
TLS_DHE_RSA_WITH_AES_128_CBC_SHA (0x33)   DH 1024 bits   FS   WEAK 128
TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA (0x45)   DH 1024 bits   FS   WEAK 128


Handshake Simulation
Android 2.3.7   No SNI 2 Incorrect certificate because this client doesn't support SNI
RSA 2048 (SHA256)   |  TLS 1.0  |  TLS_DHE_RSA_WITH_AES_128_CBC_SHA  |  DH 1024
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_128_GCM_SHA256   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_128_GCM_SHA256   ECDH secp256r1  FS
Android 8.0 RSA 2048 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Android 8.1 RSA 2048 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Android 9.0 RSA 2048 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_RSA_WITH_AES_128_GCM_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_128_GCM_SHA256   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_128_GCM_SHA256   ECDH secp256r1  FS
Chrome 70 / Win 10 RSA 2048 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Chrome 75 / Win 10  R RSA 2048 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   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_128_GCM_SHA256   ECDH secp256r1  FS
Firefox 62 / Win 7  R RSA 2048 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Firefox 67 / Win 10  R RSA 2048 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Googlebot Feb 2018 RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   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_ECDHE_RSA_WITH_AES_256_CBC_SHA384   ECDH secp256r1  FS
IE 11 / Win 8.1  R RSA 2048 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384   ECDH secp256r1  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_128_CBC_SHA256   ECDH secp256r1  FS
IE 11 / Win Phone 8.1 Update  R RSA 2048 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384   ECDH secp256r1  FS
IE 11 / Win 10  R RSA 2048 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Edge 15 / Win 10  R RSA 2048 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Edge 16 / Win 10  R RSA 2048 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Edge 18 / Win 10  R RSA 2048 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Edge 13 / Win Phone 10  R RSA 2048 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Java 6u45   No SNI 2 Incorrect certificate because this client doesn't support SNI
RSA 2048 (SHA256)   |  TLS 1.0  |  TLS_DHE_RSA_WITH_AES_128_CBC_SHA  |  DH 1024
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_128_GCM_SHA256   ECDH secp256r1  FS
Java 11.0.3 RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Java 12.0.1 RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
OpenSSL 0.9.8y RSA 2048 (SHA256)   TLS 1.0 TLS_DHE_RSA_WITH_AES_256_CBC_SHA   DH 1024  FS
OpenSSL 1.0.1l  R RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
OpenSSL 1.0.2s  R RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
OpenSSL 1.1.0k  R RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
OpenSSL 1.1.1c  R RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   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_128_GCM_SHA256   ECDH secp256r1  FS
Safari 9 / OS X 10.11  R RSA 2048 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Safari 10 / iOS 10  R RSA 2048 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Safari 10 / OS X 10.12  R RSA 2048 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Safari 12.1.2 / MacOS 10.14.6 Beta  R RSA 2048 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Safari 12.1.1 / iOS 12.3.1  R RSA 2048 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Apple ATS 9 / iOS 9  R RSA 2048 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Yahoo Slurp Jan 2015 RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
YandexBot Jan 2015 RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   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
DROWN No, server keys and hostname not seen elsewhere with SSLv2
(1) For a better understanding of this test, please read this longer explanation
(2) Key usage data kindly provided by the Censys network search engine; original DROWN website here
(3) Censys data is only indicative of possible key and certificate reuse; possibly out-of-date and not complete
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 Weak key exchange   WEAK
ALPN Yes   http/1.1
NPN Yes   http/1.1
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 Yes   Replace with custom DH parameters if possible (more info)
DH public server param (Ys) reuse No
ECDH public server param reuse No
Supported Named Groups secp256r1
SSL 2 handshake compatibility Yes


HTTP Requests
1 https://sync.madnet.ru/  (HTTP/1.1 301 Moved Permanently)
1
Server nginx
Date Sun, 20 Oct 2019 06:37:50 GMT
Content-Type text/html
Content-Length 178
Connection close
Location http://madnetex.com/pixel/pix.png


Miscellaneous
Test date Sun, 20 Oct 2019 06:37:41 UTC
Test duration 97.219 seconds
HTTP status code 301
HTTP forwarding http://madnetex.com   PLAINTEXT
HTTP server signature nginx
Server hostname -


Why is my certificate not trusted?

There are many reasons why a certificate may not be trusted. The exact problem is indicated on the report card in bright red. The problems fall into three categories:

  1. Invalid certificate
  2. Invalid configuration
  3. Unknown Certificate Authority

1. Invalid certificate

A certificate is invalid if:

2. Invalid configuration

In some cases, the certificate chain does not contain all the necessary certificates to connect the web server certificate to one of the root certificates in our trust store. Less commonly, one of the certificates in the chain (other than the web server certificate) will have expired, and that invalidates the entire chain.

3. Unknown Certificate Authority

In order for trust to be established, we must have the root certificate of the signing Certificate Authority in our trust store. SSL Labs does not maintain its own trust store; instead we use the store maintained by Mozilla.

If we mark a web site as not trusted, that means that the average web user's browser will not trust it either. For certain special groups of users, such web sites can still be secure. For example, if you can securely verify that a self-signed web site is operated by a person you trust, then you can trust that self-signed web site too. Or, if you work for an organisation that manages its own trust, and you have their own root certificate already embedded in your browser. Such special cases do not work for the general public, however, and this is what we indicate on our report card.

4. Interoperability issues

In some rare cases trust cannot be established because of interoperability issues between our code and the code or configuration running on the server. We manually review such cases, but if you encounter such an issue please feel free to contact us. Such problems are very difficult to troubleshoot and you may be able to provide us with information that might help us determine the root cause.

SSL Report v2.0.2