SSL Report:
academy.kaatsu-education.com
(176.9.121.104)
Assessed on: Sat, 14 Jun 2025 17:44:10 UTC
| Clear cache
Summary
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.
HTTP request to this server failed, see below for details.
This site works only in browsers with SNI support.
This server supports TLS 1.3. MORE INFO »
Certificate #1: RSA 4096 bits (SHA256withRSA)
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Server Key and Certificate #1
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|
| Subject |
academy.kaatsu-education.com
Fingerprint SHA256: 43b37672e34274ff9d6ea13dc646ccedbca95cd458bda00c5b13966b1cf006f1 Pin SHA256: qJRYqvuAcC840aSNlqqf7tf5lkSdKOimIBjVq831Ik8= |
| Common names | academy.kaatsu-education.com |
| Alternative names | academy.kaatsu-education.com |
| Serial Number | 0590379db306a2666c44f43ea6826e47de57 |
| Valid from | Tue, 10 Jun 2025 18:02:19 UTC |
| Valid until | Mon, 08 Sep 2025 18:02:18 UTC (expires in 2 months and 24 days) |
| Key | RSA 4096 bits (e 65537) |
| Weak key (Debian) | No |
| Issuer | R10
AIA: http://r10.i.lencr.org/ |
| Signature algorithm | SHA256withRSA |
| Extended Validation | No |
| Certificate Transparency | Yes (certificate) |
| OCSP Must Staple | No |
| Revocation information |
CRL CRL: http://r10.c.lencr.org/88.crl |
| Revocation status | Good (not revoked) |
| DNS CAA | No (more info) |
| Trusted | Yes
Mozilla Apple Android Java Windows |
Certification Paths |
Certificate #2: RSA 2048 bits (SHA256withRSA)
No SNI
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Additional Certificates (if supplied)
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| Certificates provided | 1 (831 bytes) |
| Chain issues | None |
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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 |
| (*) Experimental: Server negotiated using No-SNI | |
| 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 secp384r1 (eq. 7680 bits RSA) FS
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256 | |
TLS_CHACHA20_POLY1305_SHA256 (0x1303)
ECDH secp384r1 (eq. 7680 bits RSA) FS
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256 | |
TLS_AES_128_GCM_SHA256 (0x1301)
ECDH secp384r1 (eq. 7680 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_RSA_WITH_AES_256_GCM_SHA384 (0xc030)
ECDH secp384r1 (eq. 7680 bits RSA) FS
|
256 | |
TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 (0x9f)
DH 4096 bits FS
|
256 | |
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 (0xc028)
ECDH secp384r1 (eq. 7680 bits RSA) FS
WEAK
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256 | |
| Handshake Simulation | |||
| Android 4.4.2 | RSA 4096 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_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 | RSA 4096 (SHA256) | TLS 1.2 > http/1.1 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp384r1 FS |
| Android 8.0 | RSA 4096 (SHA256) | TLS 1.2 > http/1.1 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp384r1 FS |
| Android 8.1 | - | TLS 1.3 | TLS_AES_256_GCM_SHA384 ECDH secp384r1 FS |
| Android 9.0 | - | TLS 1.3 | TLS_AES_256_GCM_SHA384 ECDH secp384r1 FS |
| BingPreview Jan 2015 | RSA 4096 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_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 | RSA 4096 (SHA256) | TLS 1.2 > http/1.1 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp384r1 FS |
| Chrome 70 / Win 10 | - | TLS 1.3 | TLS_AES_256_GCM_SHA384 ECDH secp384r1 FS |
| Chrome 80 / Win 10 R | - | TLS 1.3 | TLS_AES_256_GCM_SHA384 ECDH secp384r1 FS |
| Firefox 31.3.0 ESR / Win 7 |
Server sent fatal alert: handshake_failure |
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| Firefox 47 / Win 7 R |
Server sent fatal alert: handshake_failure |
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| Firefox 49 / XP SP3 | RSA 4096 (SHA256) | TLS 1.2 > http/1.1 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp384r1 FS |
| Firefox 62 / Win 7 R | RSA 4096 (SHA256) | TLS 1.2 > http/1.1 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp384r1 FS |
| Firefox 73 / Win 10 R | - | TLS 1.3 | TLS_AES_256_GCM_SHA384 ECDH secp384r1 FS |
| Googlebot Feb 2018 | RSA 4096 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp384r1 FS |
| IE 11 / Win 7 R | RSA 4096 (SHA256) | TLS 1.2 | TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 DH 4096 FS |
| IE 11 / Win 8.1 R | RSA 4096 (SHA256) | TLS 1.2 > http/1.1 | TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 DH 4096 FS |
| 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 | RSA 4096 (SHA256) | TLS 1.2 > http/1.1 | TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 DH 4096 FS |
| IE 11 / Win 10 R | RSA 4096 (SHA256) | TLS 1.2 > http/1.1 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp384r1 FS |
| Edge 15 / Win 10 R | RSA 4096 (SHA256) | TLS 1.2 > http/1.1 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp384r1 FS |
| Edge 16 / Win 10 R | RSA 4096 (SHA256) | TLS 1.2 > http/1.1 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp384r1 FS |
| Edge 18 / Win 10 R | RSA 4096 (SHA256) | TLS 1.2 > http/1.1 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp384r1 FS |
| Edge 13 / Win Phone 10 R | RSA 4096 (SHA256) | TLS 1.2 > http/1.1 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp384r1 FS |
| Java 8u161 | RSA 4096 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_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 | RSA 4096 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp384r1 FS |
| OpenSSL 1.0.2s R | RSA 4096 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp384r1 FS |
| OpenSSL 1.1.0k R | RSA 4096 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp384r1 FS |
| OpenSSL 1.1.1c R | - | TLS 1.3 | TLS_AES_256_GCM_SHA384 ECDH secp384r1 FS |
| Safari 6 / iOS 6.0.1 | RSA 4096 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 ECDH secp384r1 FS |
| Safari 7 / iOS 7.1 R | RSA 4096 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 ECDH secp384r1 FS |
| Safari 7 / OS X 10.9 R | RSA 4096 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 ECDH secp384r1 FS |
| Safari 8 / iOS 8.4 R | RSA 4096 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 ECDH secp384r1 FS |
| Safari 8 / OS X 10.10 R | RSA 4096 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 ECDH secp384r1 FS |
| Safari 9 / iOS 9 R | RSA 4096 (SHA256) | TLS 1.2 > http/1.1 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp384r1 FS |
| Safari 9 / OS X 10.11 R | RSA 4096 (SHA256) | TLS 1.2 > http/1.1 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp384r1 FS |
| Safari 10 / iOS 10 R | RSA 4096 (SHA256) | TLS 1.2 > http/1.1 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp384r1 FS |
| Safari 10 / OS X 10.12 R | RSA 4096 (SHA256) | TLS 1.2 > http/1.1 | TLS_ECDHE_RSA_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 secp384r1 FS |
| Safari 12.1.1 / iOS 12.3.1 R | - | TLS 1.3 | TLS_AES_256_GCM_SHA384 ECDH secp384r1 FS |
| Apple ATS 9 / iOS 9 R | RSA 4096 (SHA256) | TLS 1.2 > http/1.1 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp384r1 FS |
| Yahoo Slurp Jan 2015 | RSA 4096 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp384r1 FS |
| YandexBot Jan 2015 | RSA 4096 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_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 | Unknown (more info) |
| GOLDENDOODLE | Unknown (more info) |
| OpenSSL 0-Length | Unknown (more info) |
| Sleeping POODLE | Unknown (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 | 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 | No |
| DH public server param (Ys) reuse | No |
| ECDH public server param reuse | No |
| Supported Named Groups | secp384r1 |
| SSL 2 handshake compatibility | Yes |
| 0-RTT enabled | No |
|
HTTP Requests
|
|
1 https://academy.kaatsu-education.com/
(HTTP/1.1 301 Moved Permanently)
| 1 | |
| Server | openresty | |
| Date | Sat, 14 Jun 2025 17:43:05 GMT | |
| Content-Type | text/html | |
| Content-Length | 175 | |
| Connection | close | |
| Location | https://academy.kaatsu-education.com/ | |
|
2 https://academy.kaatsu-education.com/
(HTTP/1.1 301 Moved Permanently)
| 2 | |
| Server | openresty | |
| Date | Sat, 14 Jun 2025 17:43:06 GMT | |
| Content-Type | text/html | |
| Content-Length | 175 | |
| Connection | close | |
| Location | https://academy.kaatsu-education.com/ | |
|
3 https://academy.kaatsu-education.com/
(HTTP/1.1 301 Moved Permanently)
| 3 | |
| Server | openresty | |
| Date | Sat, 14 Jun 2025 17:43:07 GMT | |
| Content-Type | text/html | |
| Content-Length | 175 | |
| Connection | close | |
| Location | https://academy.kaatsu-education.com/ | |
|
4 https://academy.kaatsu-education.com/
(HTTP/1.1 301 Moved Permanently)
| 4 | |
| Server | openresty | |
| Date | Sat, 14 Jun 2025 17:43:08 GMT | |
| Content-Type | text/html | |
| Content-Length | 175 | |
| Connection | close | |
| Location | https://academy.kaatsu-education.com/ | |
|
5 https://academy.kaatsu-education.com/
(HTTP/1.1 301 Moved Permanently)
| 5 | |
| Server | openresty | |
| Date | Sat, 14 Jun 2025 17:43:08 GMT | |
| Content-Type | text/html | |
| Content-Length | 175 | |
| Connection | close | |
| Location | https://academy.kaatsu-education.com/ | |
|
6 https://academy.kaatsu-education.com/
(HTTP/1.1 301 Moved Permanently)
| 6 | |
| Server | openresty | |
| Date | Sat, 14 Jun 2025 17:43:09 GMT | |
| Content-Type | text/html | |
| Content-Length | 175 | |
| Connection | close | |
| Location | https://academy.kaatsu-education.com/ | |
| Miscellaneous | |
| Test date | Sat, 14 Jun 2025 17:42:52 UTC |
| Test duration | 78.293 seconds |
| HTTP status code | Request failed (Too many Redirection) |
| HTTP server signature | openresty |
| Server hostname | static.104.121.9.176.clients.your-server.de |
SSL Report v2.4.0