SSL Report:
pqc.zotrus.com
(116.198.201.35)
Assessed on: Sun, 21 Sep 2025 01:31:37 UTC
| Clear cache
Summary
0
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Certificate
Protocol Support
Key Exchange
Cipher Strength
Visit our documentation page
for more information, configuration guides, and books. Known issues are documented
here.
This server supports TLS 1.3. MORE INFO »
HTTP Strict Transport Security (HSTS) with long duration deployed on this server.
MORE INFO »
Certificate #1: EC 256 bits (SHA384withECDSA)
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Server Key and Certificate #1
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| Subject |
pqc.zotrus.com
Fingerprint SHA256: f490344b0aeda1ce9d06497ab43df0aa621e3422ada827397338497367a08326 Pin SHA256: s3vefmDx11jNB6nGkp6dYcBIvJgJHjOupNW8WV3D4JU= |
| Common names | pqc.zotrus.com |
| Alternative names | pqc.zotrus.com |
| Serial Number | 7e1eb82442257b2b66ad295d1eb661fa |
| Valid from | Thu, 07 Aug 2025 01:52:45 UTC |
| Valid until | Wed, 05 Nov 2025 01:52:45 UTC (expires in 1 month and 14 days) |
| Key | EC 256 bits |
| Weak key (Debian) | No |
| Issuer | ZoTrus DV TLS ECC CA 1
AIA: http://cert.ssl.com/ZoTrus-DVTLS-I-E1.cer |
| Signature algorithm | SHA384withECDSA |
| Extended Validation | No |
| Certificate Transparency | Yes (certificate) |
| OCSP Must Staple | No |
| Revocation information |
CRL, OCSP CRL: http://crls.ssl.com/ZoTrus-DVTLS-I-E1.crl OCSP: http://ocsps.ssl.com |
| Revocation status | Good (not revoked)
CRL ERROR: IOException occurred |
| DNS CAA | No (more info) |
| Trusted | Yes
Mozilla Apple Android Java Windows |
Certification Paths |
Configuration
| Protocols | |
| TLS 1.3 | Yes |
| TLS 1.2 | Yes |
| TLS 1.1 | No |
| TLS 1.0 | No |
| SSL 3 | No |
| SSL 2 | No |
| Cipher Suites | ||
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# TLS 1.3 (suites in server-preferred order)
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TLS_AES_256_GCM_SHA384 (0x1302)
ECDH x25519 (eq. 3072 bits RSA) FS
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256 | |
TLS_CHACHA20_POLY1305_SHA256 (0x1303)
ECDH x25519 (eq. 3072 bits RSA) FS
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256 | |
TLS_AES_128_GCM_SHA256 (0x1301)
ECDH x25519 (eq. 3072 bits RSA) FS
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128 | |
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# TLS 1.2 (suites in server-preferred order)
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TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 (0xc02c)
ECDH x25519 (eq. 3072 bits RSA) FS
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256 | |
TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 (0xcca9)
ECDH x25519 (eq. 3072 bits RSA) FS
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256 | |
| Handshake Simulation | |||
| Android 4.4.2 | EC 256 (SHA384) | TLS 1.2 | TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 ECDH secp384r1 FS |
| Android 5.0.0 |
Server sent fatal alert: handshake_failure |
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| Android 6.0 |
Server sent fatal alert: handshake_failure |
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| Android 7.0 | EC 256 (SHA384) | TLS 1.2 > http/1.1 | TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 ECDH x25519 FS |
| Android 8.0 | EC 256 (SHA384) | TLS 1.2 > http/1.1 | TLS_ECDHE_ECDSA_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 |
| BingPreview Jan 2015 | EC 256 (SHA384) | TLS 1.2 | TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 ECDH secp384r1 FS |
| Chrome 49 / XP SP3 |
Server sent fatal alert: handshake_failure |
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| Chrome 69 / Win 7 R | EC 256 (SHA384) | TLS 1.2 > http/1.1 | TLS_ECDHE_ECDSA_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 |
Server sent fatal alert: handshake_failure |
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| Firefox 47 / Win 7 R | EC 256 (SHA384) | TLS 1.2 > http/1.1 | TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 ECDH secp384r1 FS |
| Firefox 49 / XP SP3 | EC 256 (SHA384) | TLS 1.2 > http/1.1 | TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 ECDH secp384r1 FS |
| Firefox 62 / Win 7 R | EC 256 (SHA384) | TLS 1.2 > http/1.1 | TLS_ECDHE_ECDSA_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 | EC 256 (SHA384) | TLS 1.2 | TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 ECDH x25519 FS |
| IE 11 / Win 7 R | EC 256 (SHA384) | TLS 1.2 | TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 ECDH secp384r1 FS |
| IE 11 / Win 8.1 R | EC 256 (SHA384) | TLS 1.2 > http/1.1 | TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 ECDH secp384r1 FS |
| IE 11 / Win Phone 8.1 R | EC 256 (SHA384) | TLS 1.2 > http/1.1 | TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 ECDH secp384r1 FS |
| IE 11 / Win Phone 8.1 Update R | EC 256 (SHA384) | TLS 1.2 > http/1.1 | TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 ECDH secp384r1 FS |
| IE 11 / Win 10 R | EC 256 (SHA384) | TLS 1.2 > http/1.1 | TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 ECDH secp384r1 FS |
| Edge 15 / Win 10 R | EC 256 (SHA384) | TLS 1.2 > http/1.1 | TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 ECDH x25519 FS |
| Edge 16 / Win 10 R | EC 256 (SHA384) | TLS 1.2 > http/1.1 | TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 ECDH x25519 FS |
| Edge 18 / Win 10 R | EC 256 (SHA384) | TLS 1.2 > http/1.1 | TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 ECDH x25519 FS |
| Edge 13 / Win Phone 10 R | EC 256 (SHA384) | TLS 1.2 > http/1.1 | TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 ECDH secp384r1 FS |
| Java 8u161 | EC 256 (SHA384) | TLS 1.2 | TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 ECDH secp384r1 FS |
| Java 11.0.3 | - | TLS 1.3 | TLS_AES_256_GCM_SHA384 ECDH secp384r1 FS |
| Java 12.0.1 | - | TLS 1.3 | TLS_AES_256_GCM_SHA384 ECDH secp384r1 FS |
| OpenSSL 1.0.1l R | EC 256 (SHA384) | TLS 1.2 | TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 ECDH secp384r1 FS |
| OpenSSL 1.0.2s R | EC 256 (SHA384) | TLS 1.2 | TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 ECDH secp384r1 FS |
| OpenSSL 1.1.0k R | EC 256 (SHA384) | TLS 1.2 | TLS_ECDHE_ECDSA_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 6 / iOS 6.0.1 |
Server sent fatal alert: handshake_failure |
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| Safari 7 / iOS 7.1 R |
Server sent fatal alert: handshake_failure |
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| Safari 7 / OS X 10.9 R |
Server sent fatal alert: handshake_failure |
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| Safari 8 / iOS 8.4 R |
Server sent fatal alert: handshake_failure |
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| Safari 8 / OS X 10.10 R |
Server sent fatal alert: handshake_failure |
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| Safari 9 / iOS 9 R | EC 256 (SHA384) | TLS 1.2 > http/1.1 | TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 ECDH secp384r1 FS |
| Safari 9 / OS X 10.11 R | EC 256 (SHA384) | TLS 1.2 > http/1.1 | TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 ECDH secp384r1 FS |
| Safari 10 / iOS 10 R | EC 256 (SHA384) | TLS 1.2 > http/1.1 | TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 ECDH secp384r1 FS |
| Safari 10 / OS X 10.12 R | EC 256 (SHA384) | TLS 1.2 > http/1.1 | TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 ECDH secp384r1 FS |
| Safari 12.1.2 / MacOS 10.14.6 Beta R | - | TLS 1.3 | TLS_AES_256_GCM_SHA384 ECDH 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 | EC 256 (SHA384) | TLS 1.2 > http/1.1 | TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 ECDH secp384r1 FS |
| Yahoo Slurp Jan 2015 | EC 256 (SHA384) | TLS 1.2 | TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 ECDH secp384r1 FS |
| YandexBot Jan 2015 | EC 256 (SHA384) | TLS 1.2 | TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 ECDH secp384r1 FS |
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# Not simulated clients (Protocol mismatch)
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| Android 2.3.7 No SNI 2 |
Protocol mismatch (not simulated) |
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| Android 4.0.4 |
Protocol mismatch (not simulated) |
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| Android 4.1.1 |
Protocol mismatch (not simulated) |
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| Android 4.2.2 |
Protocol mismatch (not simulated) |
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| Android 4.3 |
Protocol mismatch (not simulated) |
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| Baidu Jan 2015 |
Protocol mismatch (not simulated) |
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| IE 6 / XP No FS 1 No SNI 2 |
Protocol mismatch (not simulated) |
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| IE 7 / Vista |
Protocol mismatch (not simulated) |
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| IE 8 / XP No FS 1 No SNI 2 |
Protocol mismatch (not simulated) |
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| IE 8-10 / Win 7 R |
Protocol mismatch (not simulated) |
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| IE 10 / Win Phone 8.0 |
Protocol mismatch (not simulated) |
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| Java 6u45 No SNI 2 |
Protocol mismatch (not simulated) |
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| Java 7u25 |
Protocol mismatch (not simulated) |
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| OpenSSL 0.9.8y |
Protocol mismatch (not simulated) |
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| Safari 5.1.9 / OS X 10.6.8 |
Protocol mismatch (not simulated) |
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| Safari 6.0.4 / OS X 10.8.4 R |
Protocol mismatch (not simulated) |
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| (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 | Mitigated server-side (more info) |
| POODLE (SSLv3) | No, SSL 3 not supported (more info) |
| POODLE (TLS) | No (more info) |
| Zombie POODLE | No (more info) |
| GOLDENDOODLE | No (more info) |
| OpenSSL 0-Length | No (more info) |
| Sleeping POODLE | No (more info) |
| 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) | 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) |
| Long handshake intolerance | No |
| TLS extension intolerance | No |
| TLS version intolerance | No |
| Incorrect SNI alerts | No |
| Uses common DH primes | No, DHE suites not supported |
| DH public server param (Ys) reuse | No, DHE suites not supported |
| ECDH public server param reuse | No |
| Supported Named Groups | x25519, secp384r1, secp256r1 (server preferred order) |
| SSL 2 handshake compatibility | No |
| 0-RTT enabled | No |
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HTTP Requests
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1 https://pqc.zotrus.com/
(HTTP/1.1 200 OK)
| 1 | |
| Server | nginx/1.26.0 | |
| Date | Sun, 21 Sep 2025 01:30:43 GMT | |
| Content-Type | text/html | |
| Content-Length | 6330 | |
| Last-Modified | Mon, 11 Aug 2025 08:08:42 GMT | |
| Connection | close | |
| ETag | "6899a50a-18ba" | |
| Strict-Transport-Security | max-age=31536000; includeSubdomains ;preload | |
| Accept-Ranges | bytes | |
| Miscellaneous | |
| Test date | Sun, 21 Sep 2025 01:30:20 UTC |
| Test duration | 76.377 seconds |
| HTTP status code | 200 |
| HTTP server signature | nginx/1.26.0 |
| Server hostname | - |
SSL Report v2.4.1