SSL Report:
www.nycu.edu.tw
(140.113.42.195)
Assessed on: Tue, 28 Oct 2025 22:10:36 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.
Server sent invalid/disabled HSTS policy. See below for further information. MORE INFO »
HTTP request to this server failed, see below for details.
This server does not support TLS 1.3. MORE INFO »
Certificate #1: RSA 2048 bits (SHA256withRSA)
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Server Key and Certificate #1
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| Subject |
*.nycu.edu.tw
Fingerprint SHA256: 89b081ce821b542740c67e1856f43a7536cce819310af2ef57f2beb7b64ac26d Pin SHA256: gu2xeBNr6cjM2SAdQU+a0GORA4lbhV5m/NEJDbteFa4= |
| Common names | *.nycu.edu.tw |
| Alternative names | *.nycu.edu.tw nycu.edu.tw |
| Serial Number | 47e900000008862a1651ced52b7e3f69 |
| Valid from | Wed, 01 Oct 2025 09:09:46 UTC |
| Valid until | Thu, 01 Oct 2026 15:59:59 UTC (expires in 11 months and 2 days) |
| Key | RSA 2048 bits (e 65537) |
| Weak key (Debian) | No |
| Issuer | TWCA Secure SSL Certification Authority
AIA: http://sslserver.twca.com.tw/cacert/secure_sha2_2023G3.crt |
| Signature algorithm | SHA256withRSA |
| Extended Validation | No |
| Certificate Transparency | Yes (certificate) |
| OCSP Must Staple | No |
| Revocation information |
CRL, OCSP CRL: http://sslserver.twca.com.tw/sslserver/Securessl_revoke_sha2_2023G3.crl OCSP: http://twcasslocsp.twca.com.tw/ |
| 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 | No |
| 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 1.2 (suites in server-preferred order)
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TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (0xc02f)
ECDH secp256r1 (eq. 3072 bits RSA) FS
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128 | |
TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (0xc030)
ECDH secp256r1 (eq. 3072 bits RSA) FS
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256 | |
| Handshake Simulation | |||
| 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 |
| 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 80 / 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 73 / 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 11 / Win 7 R |
Server sent fatal alert: handshake_failure |
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| IE 11 / Win 8.1 R |
Server sent fatal alert: handshake_failure |
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| IE 11 / Win Phone 8.1 R |
Server sent fatal alert: handshake_failure |
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| IE 11 / Win Phone 8.1 Update R |
Server sent fatal alert: handshake_failure |
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| 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 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 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 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 | 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 |
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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 | Unknown (requires support for at least two protocols, excl. SSL2) |
| 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) | No |
| OCSP stapling | No |
| Strict Transport Security (HSTS) | Invalid
Server provided more than one HSTS header
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| HSTS Preloading | Not in: Chrome Edge Firefox IE |
| Public Key Pinning (HPKP) | Unknown (failed HTTP request?) |
| Public Key Pinning Report-Only | Unknown (failed HTTP request?) |
| Public Key Pinning (Static) | No (more info) |
| Long handshake intolerance | No |
| TLS extension intolerance | No |
| TLS version intolerance | TLS 1.152 TLS 2.152 |
| 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 | secp256r1, secp384r1, secp224r1, secp521r1 (server preferred order) |
| SSL 2 handshake compatibility | No |
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HTTP Requests
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1 https://www.nycu.edu.tw/
(HTTP/1.1 303 303)
| 1 | |
| Date | Tue, 28 Oct 2025 22:09:08 GMT | |
| Server | Apache | |
| Strict-Transport-Security | max-age=63072000; includeSubdomains; preload | |
| Location | /nycu/ch/index | |
| X-Content-Type-Options | nosniff | |
| X-XSS-Protection | 1; mode=block | |
| Cache-Control | no-cache, no-store, max-age=0, must-revalidate | |
| Pragma | no-cache | |
| Expires | 0 | |
| Strict-Transport-Security | max-age=31536000 ; includeSubDomains | |
| X-Frame-Options | DENY | |
| Content-Security-Policy | default-src 'none';script-src 'strict-dynamic' 'nonce-WhLZMhCeEwlj8ahw5zWPfCka7VDOhUarD3qzz5U7gOg=';frame-ancestors 'self' *.instagram.com maps.googleapis.com fonts.googleapis.com *.youtube.com; connect-src 'self' 'unsafe-inline' https://directline.botframework.com wss://directline.botframework.com https://analytics.google.com https://graph.facebook.com;base-uri 'self';font-src 'self' *.nycu.edu.tw;form-action 'self' *.google.com;style-src 'self' 'unsafe-inline' 'unsafe-eval' ;object-src 'none';img-src data: 'self' data: blob: 'unsafe-inline' 'unsafe-eval' *.nycu.edu.tw *.googletagmanager.com *.google-analytics.com *.analytics.google.com *.g.doubleclick.net *.google.com *.google.com.tw *.youtube.com *.googleapis.com *.gstatic.com maps.googleapis.com fonts.googleapis.com i3.ytimg.com www.googletagmanager.com *.facebook.com i.ytimg.com *.instagram.com *.cdn.botframework.com *.directline.botframework.com https://scontent-tpe1-1.xx.fbcdn.net;frame-src 'self' *.instagram.com maps.googleapis.com fonts.googleapis.com *.youtube.com *.google.com *.facebook.com;media-src 'self';require-trusted-types-for 'script'; | |
| Content-Language | en-US | |
| Set-Cookie | XSRF-TOKEN=ab4c439a-e88c-489e-a26e-00dd8a9e1e9e; Path=/; Secure;HttpOnly;Secure;SameSite=Strict | |
| Set-Cookie | JSESSIONID=30CA4104A7A0E812E9F3E14D481ECBEC; Path=/; Secure; HttpOnly;HttpOnly;Secure;SameSite=Strict | |
| Connection | close | |
| Transfer-Encoding | chunked | |
| Strict-Transport-Security | max-age=157680000 | |
| Set-Cookie | nctu_id=AAY7BD8BaTuiXTMAAAAAADtfdnfRh3D7QhfQO1MzSmWrjp0_Rh4zlqlExRLDpCwsOw==iEIBaQ==PRTWO0eIE3S43UA0kNhRM_tt7Cg=; Domain=.nycu.edu.tw; Path=/; Secure; HttpOnly | |
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2 https://www.nycu.edu.tw/nycu/ch/index
(Request failed)
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| Miscellaneous | |
| Test date | Tue, 28 Oct 2025 22:08:46 UTC |
| Test duration | 109.929 seconds |
| HTTP status code | Request failed |
| HTTP server signature | Apache |
| Server hostname | - |
SSL Report v2.4.1