SSL Report: webchat-v1i3.chatlux.lu (195.28.160.9)
Assessed on:  Sun, 16 Nov 2025 18:38:19 UTC | Clear cache

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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's certificate chain is incomplete. Grade capped to B.
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 256 bits (SHA384withECDSA)
Server Key and Certificate #1
Subject webchat-v1i3.chatlux.lu
Fingerprint SHA256: a480370686296f83c601e1e6fabe61a1e2df77cbae3273c51d874bfa96d9858a
Pin SHA256: P17WqYcX4fizEJTHGWjgy7+3/Qwml6mH5pX9E/mB4BQ=
Common names webchat-v1i3.chatlux.lu
Alternative names webchat-v1i3.chatlux.lu
Serial Number 21a4d1fffed546638555f469671c5b8f
Valid from Wed, 01 Oct 2025 00:00:00 UTC
Valid until Tue, 30 Dec 2025 23:59:59 UTC (expires in 1 month and 14 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 1 (1045 bytes)
Chain issues Incomplete


Certification Paths
Path #1: Trusted
1 Sent by server webchat-v1i3.chatlux.lu
Fingerprint SHA256: a480370686296f83c601e1e6fabe61a1e2df77cbae3273c51d874bfa96d9858a
Pin SHA256: P17WqYcX4fizEJTHGWjgy7+3/Qwml6mH5pX9E/mB4BQ=

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

EC 384 bits / SHA384withECDSA
CRL ERROR: IOException occurred
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 webchat-v1i3.chatlux.lu
Fingerprint SHA256: a480370686296f83c601e1e6fabe61a1e2df77cbae3273c51d874bfa96d9858a
Pin SHA256: P17WqYcX4fizEJTHGWjgy7+3/Qwml6mH5pX9E/mB4BQ=

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

EC 384 bits / SHA384withECDSA
CRL ERROR: IOException occurred
3 Extra download USERTrust ECC Certification Authority
Fingerprint SHA256: a6cf64dbb4c8d5fd19ce48896068db03b533a8d1336c6256a87d00cbb3def3ea
Pin SHA256: ICGRfpgmOUXIWcQ/HXPLQTkFPEFPoDyjvH7ohhQpjzs=

EC 384 bits / SHA384withRSA
CRL ERROR: IOException occurred
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 webchat-v1i3.chatlux.lu
Fingerprint SHA256: a480370686296f83c601e1e6fabe61a1e2df77cbae3273c51d874bfa96d9858a
Pin SHA256: P17WqYcX4fizEJTHGWjgy7+3/Qwml6mH5pX9E/mB4BQ=

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

EC 384 bits / SHA384withECDSA
CRL ERROR: IOException occurred
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 webchat-v1i3.chatlux.lu
Fingerprint SHA256: a480370686296f83c601e1e6fabe61a1e2df77cbae3273c51d874bfa96d9858a
Pin SHA256: P17WqYcX4fizEJTHGWjgy7+3/Qwml6mH5pX9E/mB4BQ=

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

EC 384 bits / SHA384withECDSA
CRL ERROR: IOException occurred
3 Extra download USERTrust ECC Certification Authority
Fingerprint SHA256: a6cf64dbb4c8d5fd19ce48896068db03b533a8d1336c6256a87d00cbb3def3ea
Pin SHA256: ICGRfpgmOUXIWcQ/HXPLQTkFPEFPoDyjvH7ohhQpjzs=

EC 384 bits / SHA384withRSA
CRL ERROR: IOException occurred
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 webchat-v1i3.chatlux.lu
Fingerprint SHA256: a480370686296f83c601e1e6fabe61a1e2df77cbae3273c51d874bfa96d9858a
Pin SHA256: P17WqYcX4fizEJTHGWjgy7+3/Qwml6mH5pX9E/mB4BQ=

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

EC 384 bits / SHA384withECDSA
CRL ERROR: IOException occurred
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 webchat-v1i3.chatlux.lu
Fingerprint SHA256: a480370686296f83c601e1e6fabe61a1e2df77cbae3273c51d874bfa96d9858a
Pin SHA256: P17WqYcX4fizEJTHGWjgy7+3/Qwml6mH5pX9E/mB4BQ=

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

EC 384 bits / SHA384withECDSA
CRL ERROR: IOException occurred
3 Extra download USERTrust ECC Certification Authority
Fingerprint SHA256: a6cf64dbb4c8d5fd19ce48896068db03b533a8d1336c6256a87d00cbb3def3ea
Pin SHA256: ICGRfpgmOUXIWcQ/HXPLQTkFPEFPoDyjvH7ohhQpjzs=

EC 384 bits / SHA384withRSA
CRL ERROR: IOException occurred
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 webchat-v1i3.chatlux.lu
Fingerprint SHA256: a480370686296f83c601e1e6fabe61a1e2df77cbae3273c51d874bfa96d9858a
Pin SHA256: P17WqYcX4fizEJTHGWjgy7+3/Qwml6mH5pX9E/mB4BQ=

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

EC 384 bits / SHA384withECDSA
CRL ERROR: IOException occurred
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 webchat-v1i3.chatlux.lu
Fingerprint SHA256: a480370686296f83c601e1e6fabe61a1e2df77cbae3273c51d874bfa96d9858a
Pin SHA256: P17WqYcX4fizEJTHGWjgy7+3/Qwml6mH5pX9E/mB4BQ=

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

EC 384 bits / SHA384withECDSA
CRL ERROR: IOException occurred
3 Extra download USERTrust ECC Certification Authority
Fingerprint SHA256: a6cf64dbb4c8d5fd19ce48896068db03b533a8d1336c6256a87d00cbb3def3ea
Pin SHA256: ICGRfpgmOUXIWcQ/HXPLQTkFPEFPoDyjvH7ohhQpjzs=

EC 384 bits / SHA384withRSA
CRL ERROR: IOException occurred
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 webchat-v1i3.chatlux.lu
Fingerprint SHA256: a480370686296f83c601e1e6fabe61a1e2df77cbae3273c51d874bfa96d9858a
Pin SHA256: P17WqYcX4fizEJTHGWjgy7+3/Qwml6mH5pX9E/mB4BQ=

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

EC 384 bits / SHA384withECDSA
CRL ERROR: IOException occurred
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 webchat-v1i3.chatlux.lu
Fingerprint SHA256: a480370686296f83c601e1e6fabe61a1e2df77cbae3273c51d874bfa96d9858a
Pin SHA256: P17WqYcX4fizEJTHGWjgy7+3/Qwml6mH5pX9E/mB4BQ=

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

EC 384 bits / SHA384withECDSA
CRL ERROR: IOException occurred
3 Extra download USERTrust ECC Certification Authority
Fingerprint SHA256: a6cf64dbb4c8d5fd19ce48896068db03b533a8d1336c6256a87d00cbb3def3ea
Pin SHA256: ICGRfpgmOUXIWcQ/HXPLQTkFPEFPoDyjvH7ohhQpjzs=

EC 384 bits / SHA384withRSA
CRL ERROR: IOException occurred
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

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 (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


Handshake Simulation
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
Chrome 69 / Win 7  R Server sent fatal alert: handshake_failure
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 62 / Win 7  R Server sent fatal alert: handshake_failure
Firefox 73 / Win 10  R -   TLS 1.3 TLS_AES_256_GCM_SHA384   ECDH x25519  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 1.1.0k  R Server sent fatal alert: handshake_failure
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_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
# 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) Yes
max-age=31536000; includeSubDomains; preload
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 (server preferred order)
SSL 2 handshake compatibility No
0-RTT enabled No


HTTP Requests
1 https://webchat-v1i3.chatlux.lu/  (HTTP/1.1 200 OK)
1
Server nginx
Date Sun, 16 Nov 2025 18:38:46 GMT
Content-Type text/html
Content-Length 18518
Connection close
Vary Accept-Encoding
Access-Control-Allow-Origin https://i1-cjs.chatlux.lu
Access-Control-Allow-Credentials true
Access-Control-Allow-Headers Content-Type, Authorization
Upgrade websocket
Last-Modified Thu, 13 Nov 2025 20:55:30 GMT
ETag "4856-6438019f1c6c7"
Accept-Ranges bytes
Vary Accept-Encoding
Cache-Control no-store, no-cache, must-revalidate
Strict-Transport-Security max-age=31536000; includeSubDomains; preload
Connection Upgrade
X-Content-Type-Options nosniff
X-XSS-Protection 1; mode=block
Referrer-Policy strict-origin-when-cross-origin


Miscellaneous
Test date Sun, 16 Nov 2025 18:37:57 UTC
Test duration 21.813 seconds
HTTP status code 200
HTTP server signature nginx
Server hostname -


SSL Report v2.4.1