Deep SSL/TLS Vulnerability Test
This report provides a deep analysis of the SSL/TLS configuration of observatory-api.mdn.mozilla.net. It checks for protocol support, cipher strength, and known vulnerabilities.
Scan Results
Start 2026-01-24 10:38:06 -->> 34.117.186.171:443 (observatory-api.mdn.mozilla.net) <<-- rDNS (34.117.186.171): 171.186.117.34.bc.googleusercontent.com. Service detected: HTTP Testing for server implementation bugs No bugs found. Testing HTTP header response @ "/" HTTP Status Code 200 OK HTTP clock skew 0 sec from localtime Strict Transport Security 730 days=63072000 s, just this domain Public Key Pinning -- Server banner (no "Server" line in header, interesting!) Application banner -- Cookie(s) (none issued at "/") Security headers X-Frame-Options: DENY X-Content-Type-Options: nosniff Content-Security-Policy: default-src 'none';base-uri 'none';form-action 'none';frame-anchestors 'none' Cross-Origin-Opener-Policy: same-origin Cross-Origin-Resource-Policy: same-origin X-XSS-Protection: 0 Access-Control-Allow-Origin: * Referrer-Policy: no-referrer Reverse Proxy banner Via: 1.1 google Testing vulnerabilities Secure Renegotiation (RFC 5746) supported (OK) Secure Client-Initiated Renegotiation not vulnerable (OK) CRIME, TLS (CVE-2012-4929) not vulnerable (OK) BREACH (CVE-2013-3587) no gzip/deflate/compress/br HTTP compression (OK) - only supplied "/" tested POODLE, SSL (CVE-2014-3566) not vulnerable (OK) TLS_FALLBACK_SCSV (RFC 7507) No fallback possible (OK), no protocol below TLS 1.2 offered SWEET32 (CVE-2016-2183, CVE-2016-6329) not vulnerable (OK) FREAK (CVE-2015-0204) not vulnerable (OK) DROWN (CVE-2016-0800, CVE-2016-0703) not vulnerable on this host and port (OK) make sure you don't use this certificate elsewhere with SSLv2 enabled services, see https://search.censys.io/search?resource=hosts&virtual_hosts=INCLUDE&q=6789A11D27C8DFEC7857101211383F1C441C3BDAE40F23AC806E3E12F3BD6C03 LOGJAM (CVE-2015-4000), experimental not vulnerable (OK): no DH EXPORT ciphers, no DH key detected with <= TLS 1.2 BEAST (CVE-2011-3389) not vulnerable (OK), no SSL3 or TLS1 LUCKY13 (CVE-2013-0169), experimental not vulnerable (OK) Winshock (CVE-2014-6321), experimental not vulnerable (OK) RC4 (CVE-2013-2566, CVE-2015-2808) no RC4 ciphers detected (OK) Done 2026-01-24 10:38:48 [ 50s] -->> 34.117.186.171:443 (observatory-api.mdn.mozilla.net) <<--
About this Scan
This scan uses testssl.sh to check for:
- Protocols: SSLv2, SSLv3, TLS 1.0, TLS 1.1, TLS 1.2, TLS 1.3
- Vulnerabilities: Heartbleed, POODLE, FREAK, Logjam, DROWN, etc.
- Cipher Suites: Weak ciphers, perfect forward secrecy (PFS) support.