Deep SSL/TLS Vulnerability Test
This report provides a deep analysis of the SSL/TLS configuration of raw.githubusercontent.com. It checks for protocol support, cipher strength, and known vulnerabilities.
Scan Results
Testing all IP addresses (port 443): 185.199.108.133 185.199.109.133 185.199.111.133 185.199.110.133 ----------------------------------------------------- Start 2026-08-21 16:48:34 -->> 185.199.108.133:443 (raw.githubusercontent.com) <<-- Further IP addresses: 185.199.110.133 185.199.109.133 185.199.111.133 2606:50c0:8002::154 2606:50c0:8000::154 2606:50c0:8001::154 2606:50c0:8003::154 rDNS (185.199.108.133): cdn-185-199-108-133.github.com. Service detected: HTTP Testing for server implementation bugs No bugs found. Testing HTTP header response @ "/" HTTP Status Code 301 Moved Permanently, redirecting to "https://github.com/" HTTP clock skew 0 sec from localtime Strict Transport Security 365 days=31536000 s, just this domain Public Key Pinning -- Server banner (no "Server" line in header, interesting!) Application banner -- Cookie(s) (none issued at "/") -- maybe better try target URL of 30x Security headers X-Frame-Options: deny X-Content-Type-Options: nosniff Content-Security-Policy: default-src 'none'; style-src 'unsafe-inline'; sandbox Cross-Origin-Resource-Policy: cross-origin X-XSS-Protection: 1; mode=block Access-Control-Allow-Origin: * X-Served-By: cache-chi-kigq8000021-CHI Reverse Proxy banner Via: 1.1 varnish X-Cache: HIT X-Cache-Hits: 1 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=71F1077DB377FD7B8D68380DA66FA68238A303B2911BCB770B3B2A426693CF84 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 potentially VULNERABLE, uses obsolete cipher block chaining ciphers with TLS, see server prefs. Winshock (CVE-2014-6321), experimental not vulnerable (OK) RC4 (CVE-2013-2566, CVE-2015-2808) no RC4 ciphers detected (OK) Done 2026-08-21 16:49:16 [ 52s] -->> 185.199.108.133:443 (raw.githubusercontent.com) <<-- ----------------------------------------------------- Start 2026-08-21 16:49:17 -->> 185.199.109.133:443 (raw.githubusercontent.com) <<-- Further IP addresses: 185.199.110.133 185.199.108.133 185.199.111.133 2606:50c0:8002::154 2606:50c0:8000::154 2606:50c0:8001::154 2606:50c0:8003::154 rDNS (185.199.109.133): cdn-185-199-109-133.github.com. Service detected: HTTP Testing for server implementation bugs No bugs found. Testing HTTP header response @ "/" HTTP Status Code 301 Moved Permanently, redirecting to "https://github.com/" HTTP clock skew 0 sec from localtime Strict Transport Security 365 days=31536000 s, just this domain Public Key Pinning -- Server banner (no "Server" line in header, interesting!) Application banner -- Cookie(s) (none issued at "/") -- maybe better try target URL of 30x Security headers X-Frame-Options: deny X-Content-Type-Options: nosniff Content-Security-Policy: default-src 'none'; style-src 'unsafe-inline'; sandbox Cross-Origin-Resource-Policy: cross-origin X-XSS-Protection: 1; mode=block Access-Control-Allow-Origin: * X-Served-By: cache-chi-kigq8000177-CHI Reverse Proxy banner Via: 1.1 varnish X-Cache: HIT X-Cache-Hits: 1 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=71F1077DB377FD7B8D68380DA66FA68238A303B2911BCB770B3B2A426693CF84 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 potentially VULNERABLE, uses obsolete cipher block chaining ciphers with TLS, see server prefs. Winshock (CVE-2014-6321), experimental not vulnerable (OK) RC4 (CVE-2013-2566, CVE-2015-2808) no RC4 ciphers detected (OK) Done 2026-08-21 16:50:01 [ 97s] -->> 185.199.109.133:443 (raw.githubusercontent.com) <<-- ----------------------------------------------------- Start 2026-08-21 16:50:02 -->> 185.199.111.133:443 (raw.githubusercontent.com) <<-- Further IP addresses: 185.199.110.133 185.199.108.133 185.199.109.133 2606:50c0:8002::154 2606:50c0:8000::154 2606:50c0:8001::154 2606:50c0:8003::154 rDNS (185.199.111.133): cdn-185-199-111-133.github.com. Service detected: HTTP Testing for server implementation bugs No bugs found. Testing HTTP header response @ "/" HTTP Status Code 301 Moved Permanently, redirecting to "https://github.com/" HTTP clock skew 0 sec from localtime Strict Transport Security 365 days=31536000 s, just this domain Public Key Pinning -- Server banner (no "Server" line in header, interesting!) Application banner -- Cookie(s) (none issued at "/") -- maybe better try target URL of 30x Security headers X-Frame-Options: deny X-Content-Type-Options: nosniff Content-Security-Policy: default-src 'none'; style-src 'unsafe-inline'; sandbox Cross-Origin-Resource-Policy: cross-origin X-XSS-Protection: 1; mode=block Access-Control-Allow-Origin: * X-Served-By: cache-chi-klot8100111-CHI Reverse Proxy banner Via: 1.1 varnish X-Cache: HIT X-Cache-Hits: 2 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=71F1077DB377FD7B8D68380DA66FA68238A303B2911BCB770B3B2A426693CF84 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 potentially VULNERABLE, uses obsolete cipher block chaining ciphers with TLS, see server prefs. Winshock (CVE-2014-6321), experimental not vulnerable (OK) RC4 (CVE-2013-2566, CVE-2015-2808) no RC4 ciphers detected (OK) Done 2026-08-21 16:50:58 [ 153s] -->> 185.199.111.133:443 (raw.githubusercontent.com) <<-- ----------------------------------------------------- Start 2026-08-21 16:50:58 -->> 185.199.110.133:443 (raw.githubusercontent.com) <<-- Further IP addresses: 185.199.108.133 185.199.109.133 185.199.111.133 2606:50c0:8002::154 2606:50c0:8000::154 2606:50c0:8001::154 2606:50c0:8003::154 rDNS (185.199.110.133): cdn-185-199-110-133.github.com. Service detected: HTTP Testing for server implementation bugs No bugs found. Testing HTTP header response @ "/" HTTP Status Code 301 Moved Permanently, redirecting to "https://github.com/" HTTP clock skew 0 sec from localtime Strict Transport Security 365 days=31536000 s, just this domain Public Key Pinning -- Server banner (no "Server" line in header, interesting!) Application banner -- Cookie(s) (none issued at "/") -- maybe better try target URL of 30x Security headers X-Frame-Options: deny X-Content-Type-Options: nosniff Content-Security-Policy: default-src 'none'; style-src 'unsafe-inline'; sandbox Cross-Origin-Resource-Policy: cross-origin X-XSS-Protection: 1; mode=block Access-Control-Allow-Origin: * X-Served-By: cache-chi-klot8100171-CHI Reverse Proxy banner Via: 1.1 varnish X-Cache: HIT X-Cache-Hits: 1 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=71F1077DB377FD7B8D68380DA66FA68238A303B2911BCB770B3B2A426693CF84 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 potentially VULNERABLE, uses obsolete cipher block chaining ciphers with TLS, see server prefs. Winshock (CVE-2014-6321), experimental not vulnerable (OK) RC4 (CVE-2013-2566, CVE-2015-2808) no RC4 ciphers detected (OK) Done 2026-08-21 16:51:55 [ 211s] -->> 185.199.110.133:443 (raw.githubusercontent.com) <<-- ----------------------------------------------------- Done testing now all IP addresses (on port 443): 185.199.108.133 185.199.109.133 185.199.111.133 185.199.110.133
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.