SSL Report:
app.learnui.design
(34.54.192.65)
Assessed on: Fri, 13 Jun 2025 12:43:19 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.
Server sent invalid/disabled HSTS policy. See below for further information. MORE INFO »
This site works only in browsers with SNI support.
This server supports TLS 1.3. MORE INFO »
DNS Certification Authority Authorization (CAA) Policy found for this domain.
MORE INFO »
Certificate #1: RSA 2048 bits (SHA256withRSA)



![]() ![]() |
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 | ||
![]() ![]() # TLS 1.3 (server has no preference)
|
||
TLS_AES_128_GCM_SHA256 (0x1301 )
ECDH x25519 (eq. 3072 bits RSA) FS
|
128 | |
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 1.2 (suites in server-preferred order)
|
||
TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (0xc02f )
ECDH x25519 (eq. 3072 bits RSA) FS
|
128 | |
TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 (0xcca8 )
ECDH x25519 (eq. 3072 bits RSA) FS
|
256P | |
TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (0xc030 )
ECDH x25519 (eq. 3072 bits RSA) FS
|
256 | |
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA (0xc013 )
ECDH x25519 (eq. 3072 bits RSA) FS
WEAK
|
128 | |
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA (0xc014 )
ECDH x25519 (eq. 3072 bits RSA) FS
WEAK
|
256 | |
(P) This server prefers ChaCha20 suites with clients that don't have AES-NI (e.g., Android devices) |

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 > h2 | TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 ECDH x25519 FS |
Android 8.0 | RSA 2048 (SHA256) | TLS 1.2 > h2 | TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 ECDH x25519 FS |
Android 8.1 | - | TLS 1.3 | TLS_CHACHA20_POLY1305_SHA256 ECDH x25519 FS |
Android 9.0 | - | TLS 1.3 | TLS_CHACHA20_POLY1305_SHA256 ECDH x25519 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 > h2 | TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 ECDH secp256r1 FS |
Chrome 69 / Win 7 R | RSA 2048 (SHA256) | TLS 1.2 > h2 | TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 ECDH x25519 FS |
Chrome 70 / Win 10 | - | TLS 1.3 | TLS_AES_128_GCM_SHA256 ECDH x25519 FS |
Chrome 80 / Win 10 R | - | TLS 1.3 | TLS_AES_128_GCM_SHA256 ECDH x25519 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 > h2 | TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 ECDH secp256r1 FS |
Firefox 49 / XP SP3 | RSA 2048 (SHA256) | TLS 1.2 > h2 | TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 ECDH secp256r1 FS |
Firefox 62 / Win 7 R | RSA 2048 (SHA256) | TLS 1.2 > h2 | TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 ECDH x25519 FS |
Firefox 73 / Win 10 R | - | TLS 1.3 | TLS_AES_128_GCM_SHA256 ECDH x25519 FS |
Googlebot Feb 2018 | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 ECDH x25519 FS |
IE 11 / Win 7 R | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA ECDH secp256r1 FS |
IE 11 / Win 8.1 R | RSA 2048 (SHA256) | TLS 1.2 > http/1.1 | TLS_ECDHE_RSA_WITH_AES_128_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_SHA 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_128_CBC_SHA ECDH secp256r1 FS |
IE 11 / Win 10 R | RSA 2048 (SHA256) | TLS 1.2 > h2 | TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 ECDH secp256r1 FS |
Edge 15 / Win 10 R | RSA 2048 (SHA256) | TLS 1.2 > h2 | TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 ECDH x25519 FS |
Edge 16 / Win 10 R | RSA 2048 (SHA256) | TLS 1.2 > h2 | TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 ECDH x25519 FS |
Edge 18 / Win 10 R | RSA 2048 (SHA256) | TLS 1.2 > h2 | TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 ECDH x25519 FS |
Edge 13 / Win Phone 10 R | RSA 2048 (SHA256) | TLS 1.2 > h2 | 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 | - | TLS 1.3 | TLS_AES_128_GCM_SHA256 ECDH secp256r1 FS |
Java 12.0.1 | - | TLS 1.3 | TLS_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_CHACHA20_POLY1305_SHA256 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 | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA ECDH secp256r1 FS |
Safari 7 / iOS 7.1 R | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA ECDH secp256r1 FS |
Safari 7 / OS X 10.9 R | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA ECDH secp256r1 FS |
Safari 8 / iOS 8.4 R | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA ECDH secp256r1 FS |
Safari 8 / OS X 10.10 R | RSA 2048 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA ECDH secp256r1 FS |
Safari 9 / iOS 9 R | RSA 2048 (SHA256) | TLS 1.2 > h2 | TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 ECDH secp256r1 FS |
Safari 9 / OS X 10.11 R | RSA 2048 (SHA256) | TLS 1.2 > h2 | TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 ECDH secp256r1 FS |
Safari 10 / iOS 10 R | RSA 2048 (SHA256) | TLS 1.2 > h2 | TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 ECDH secp256r1 FS |
Safari 10 / OS X 10.12 R | RSA 2048 (SHA256) | TLS 1.2 > h2 | TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 ECDH secp256r1 FS |
Safari 12.1.2 / MacOS 10.14.6 Beta R | - | TLS 1.3 | TLS_CHACHA20_POLY1305_SHA256 ECDH x25519 FS |
Safari 12.1.1 / iOS 12.3.1 R | - | TLS 1.3 | TLS_CHACHA20_POLY1305_SHA256 ECDH x25519 FS |
Apple ATS 9 / iOS 9 R | RSA 2048 (SHA256) | TLS 1.2 > h2 | 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)
|
|||
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) |
||
Baidu Jan 2015 |
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 10 / Win Phone 8.0 |
Protocol mismatch (not simulated) |
||
Java 6u45 No SNI 2 |
Protocol mismatch (not simulated) |
||
Java 7u25 |
Protocol mismatch (not simulated) |
||
OpenSSL 0.9.8y |
Protocol mismatch (not simulated) |
||
Safari 5.1.9 / OS X 10.6.8 |
Protocol mismatch (not simulated) |
||
Safari 6.0.4 / OS X 10.8.4 R |
Protocol mismatch (not simulated) |
||
(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)
TLS 1.2 : 0xc013
|
GOLDENDOODLE | No (more info)
TLS 1.2 : 0xc013
|
OpenSSL 0-Length | No (more info)
TLS 1.2 : 0xc013
|
Sleeping POODLE | No (more info)
TLS 1.2 : 0xc013
|
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 h2 http/1.1 |
NPN | Yes grpc-exp h2 http/1.1 |
Session resumption (caching) | No (IDs empty) |
Session resumption (tickets) | Yes |
OCSP stapling | No |
Strict Transport Security (HSTS) | Disabled
max-age=0 |
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, secp256r1 (server preferred order) |
SSL 2 handshake compatibility | No |
0-RTT enabled | No |

![]() ![]() |
1 https://app.learnui.design/
(HTTP/1.1 200 OK)
| 1 | |
date | Fri, 13 Jun 2025 12:42:52 GMT | |
content-type | text/html; charset=utf-8 | |
x-fedora-school-id | 70335 | |
vary | Accept | |
cache-control | max-age=0, private, must-revalidate | |
set-cookie | ahoy_visitor=300c8584-df04-468d-9880-b5a018783268; path=/; expires=Sun, 13 Jun 2027 12:42:52 GMT; SameSite=Lax; secure | |
set-cookie | ahoy_visit=7ee74189-4c0a-43cd-9c8e-97abc87a4a07; path=/; expires=Fri, 13 Jun 2025 16:42:52 GMT; SameSite=Lax; secure | |
set-cookie | ahoy_track=true; path=/; SameSite=Lax; secure | |
set-cookie | _afid=300c8584-df04-468d-9880-b5a018783268; domain=.learnui.design; path=/; expires=Sat, 13 Jun 2026 12:42:52 GMT; secure; SameSite=None | |
set-cookie | aid=300c8584-df04-468d-9880-b5a018783268; domain=.learnui.design; path=/; expires=Sat, 13 Jun 2026 12:42:52 GMT; secure; SameSite=None | |
set-cookie | site_preview=logged_out; path=/; SameSite=Lax; secure | |
set-cookie | _session_id=62c8c2c5489c96c71de8eb9e42182f89; path=/; expires=Sun, 13 Jul 2025 12:42:52 GMT; HttpOnly; SameSite=Lax; secure | |
set-cookie | __cf_bm=J_QzVY8xf24jSBZb.mwko2CCbNzhowuesFwQf3ypsA8-1749818572-1.0.1.1-AOoNsCWd6miHy88zGIXd2lSIIPhXwIHOCc4Xb_jnPH5or6VAwIE_hCx8EoCbXNwUbYCQHyUpGCO5brQYNLoBT6XZqhmUsFUK7Pe8q0d8WOI; path=/; expires=Fri, 13-Jun-25 13:12:52 GMT; domain=.teachable.com; HttpOnly; Secure; SameSite=None | |
set-cookie | __cfruid=b4de6ced02a010245272dbaa9d987fea8cd8a381-1749818572; path=/; domain=.teachable.com; HttpOnly; Secure; SameSite=None | |
set-cookie | _cfuvid=1f0QxlUbzyP.nGmNVNwxap7RbyShhk4dtxgtsfDvN8Y-1749818572983-0.0.1.1-604800000; path=/; domain=.teachable.com; HttpOnly; Secure; SameSite=None | |
x-request-id | 62047d68-5217-470d-a348-7e6fadb46e4d | |
x-runtime | 0.196867 | |
strict-transport-security | max-age=0 | |
x-frame-options | SAMEORIGIN | |
x-content-type-options | nosniff | |
x-xss-protection | 1; mode=block | |
x-download-options | noopen | |
x-permitted-cross-domain-policies | none | |
referrer-policy | strict-origin-when-cross-origin | |
cf-cache-status | DYNAMIC | |
speculation-rules | "/cdn-cgi/speculation" | |
server | cloudflare | |
cf-ray | 94f1ab9f4d2a2284-SJC | |
alt-svc | h3=":443"; ma=86400 | |
via | 1.1 google | |
x-gcp-cdn-cache-status | miss | |
x-gcp-cdn-cache-id | SFO-1d5601d9 | |
Alt-Svc | h3=":443"; ma=2592000,h3-29=":443"; ma=2592000 | |
Connection | close | |
Transfer-Encoding | chunked |

Miscellaneous | |
Test date | Fri, 13 Jun 2025 12:42:33 UTC |
Test duration | 45.671 seconds |
HTTP status code | 200 |
HTTP server signature | cloudflare |
Server hostname | 65.192.54.34.bc.googleusercontent.com |
SSL Report v2.4.0