Deep SSL/TLS Vulnerability Test
This report provides a deep analysis of the SSL/TLS configuration of api.fast.com. It checks for protocol support, cipher strength, and known vulnerabilities.
Scan Results
Testing all IP addresses (port 443): 44.236.74.109 54.69.47.224 35.161.104.116 ----------------------------------------------------- Start 2026-01-13 10:37:39 -->> 44.236.74.109:443 (api.fast.com) <<-- Further IP addresses: 35.161.104.116 54.69.47.224 2600:1f14:62a:de80::eb3a:ef20 2600:1f14:62a:de81::eb3a:ef20 2600:1f14:62a:de82::eb3a:ef20 rDNS (44.236.74.109): ec2-44-236-74-109.us-west-2.compute.amazonaws.com. Service detected: HTTP Testing for server implementation bugs No bugs found. Testing HTTP header response @ "/" HTTP Status Code 403 Forbidden HTTP clock skew Got no HTTP time, maybe try different URL? Strict Transport Security not offered Public Key Pinning -- Server banner (no "Server" line in header, interesting!) Application banner -- Cookie(s) (none issued at "/") -- HTTP status 403 signals you maybe missed the web application Security headers -- Reverse Proxy banner -- 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) Downgrade attack prevention supported (OK) 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=93D4E184A5552798D5728FCD523BDD5D2B5CF5154B5569BEC399CEADD15E5C60 LOGJAM (CVE-2015-4000), experimental not vulnerable (OK): no DH EXPORT ciphers, no DH key detected with <= TLS 1.2 BEAST (CVE-2011-3389) TLS1: AES256-SHA AES128-SHA ECDHE-RSA-AES128-SHA ECDHE-RSA-AES256-SHA VULNERABLE -- but also supports higher protocols TLSv1.1 TLSv1.2 (likely mitigated) 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 2026-01-13 10:38:29 [ 61s] -->> 44.236.74.109:443 (api.fast.com) <<-- ----------------------------------------------------- Start 2026-01-13 10:38:29 -->> 54.69.47.224:443 (api.fast.com) <<-- Further IP addresses: 35.161.104.116 44.236.74.109 2600:1f14:62a:de80::eb3a:ef20 2600:1f14:62a:de81::eb3a:ef20 2600:1f14:62a:de82::eb3a:ef20 rDNS (54.69.47.224): ec2-54-69-47-224.us-west-2.compute.amazonaws.com. Service detected: HTTP Testing for server implementation bugs No bugs found. Testing HTTP header response @ "/" HTTP Status Code 403 Forbidden HTTP clock skew Got no HTTP time, maybe try different URL? Strict Transport Security not offered Public Key Pinning -- Server banner (no "Server" line in header, interesting!) Application banner -- Cookie(s) (none issued at "/") -- HTTP status 403 signals you maybe missed the web application Security headers -- Reverse Proxy banner -- 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) Downgrade attack prevention supported (OK) 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=93D4E184A5552798D5728FCD523BDD5D2B5CF5154B5569BEC399CEADD15E5C60 LOGJAM (CVE-2015-4000), experimental not vulnerable (OK): no DH EXPORT ciphers, no DH key detected with <= TLS 1.2 BEAST (CVE-2011-3389) TLS1: AES256-SHA AES128-SHA ECDHE-RSA-AES128-SHA ECDHE-RSA-AES256-SHA VULNERABLE -- but also supports higher protocols TLSv1.1 TLSv1.2 (likely mitigated) 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 2026-01-13 10:39:39 [ 131s] -->> 54.69.47.224:443 (api.fast.com) <<-- ----------------------------------------------------- Start 2026-01-13 10:39:40 -->> 35.161.104.116:443 (api.fast.com) <<-- Further IP addresses: 44.236.74.109 54.69.47.224 2600:1f14:62a:de80::eb3a:ef20 2600:1f14:62a:de81::eb3a:ef20 2600:1f14:62a:de82::eb3a:ef20 rDNS (35.161.104.116): ec2-35-161-104-116.us-west-2.compute.amazonaws.com. Service detected: HTTP Testing for server implementation bugs No bugs found. Testing HTTP header response @ "/" HTTP Status Code 403 Forbidden HTTP clock skew Got no HTTP time, maybe try different URL? Strict Transport Security not offered Public Key Pinning -- Server banner (no "Server" line in header, interesting!) Application banner -- Cookie(s) (none issued at "/") -- HTTP status 403 signals you maybe missed the web application Security headers -- Reverse Proxy banner -- 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) Downgrade attack prevention supported (OK) 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=93D4E184A5552798D5728FCD523BDD5D2B5CF5154B5569BEC399CEADD15E5C60 LOGJAM (CVE-2015-4000), experimental not vulnerable (OK): no DH EXPORT ciphers, no DH key detected with <= TLS 1.2 BEAST (CVE-2011-3389) TLS1: AES256-SHA AES128-SHA ECDHE-RSA-AES128-SHA ECDHE-RSA-AES256-SHA VULNERABLE -- but also supports higher protocols TLSv1.1 TLSv1.2 (likely mitigated) 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 2026-01-13 10:41:16 [ 227s] -->> 35.161.104.116:443 (api.fast.com) <<-- ----------------------------------------------------- Done testing now all IP addresses (on port 443): 44.236.74.109 54.69.47.224 35.161.104.116
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.