Deep SSL/TLS Vulnerability Test
This report provides a deep analysis of the SSL/TLS configuration of download.torproject.org. It checks for protocol support, cipher strength, and known vulnerabilities.
Scan Results
Testing all IP addresses (port 443): 116.202.120.166 116.202.120.165 204.8.99.144 204.8.99.146 95.216.163.36 ----------------------------------------------------- Start 2026-09-18 17:25:47 -->> 116.202.120.166:443 (download.torproject.org) <<-- Further IP addresses: 95.216.163.36 116.202.120.165 204.8.99.144 204.8.99.146 2a01:4f8:fff0:4f:266:37ff:fe2c:5d19 2620:7:6002:0:466:39ff:fe7f:1826 2a01:4f9:c010:19eb::1 2a01:4f8:fff0:4f:266:37ff:feae:3bbc 2620:7:6002:0:466:39ff:fe32:e3dd rDNS (116.202.120.166): web-fsn-02.torproject.org. 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 182 days=15768000 s, just this domain, preload Public Key Pinning -- Server banner Apache Application banner -- Cookie(s) (none issued at "/") Security headers X-Frame-Options: sameorigin X-Content-Type-Options: nosniff Content-Security-Policy: default-src 'self'; img-src 'self' data:; script-src 'self' 'sha256-NQWfopTOm+SvytoirB0jAiCt3z9pFqb1+j8bUOGUWHI=' X-XSS-Protection: 1 Referrer-Policy: no-referrer 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) potentially NOT ok, "gzip" HTTP compression detected. - only supplied "/" tested Can be ignored for static pages or if no secrets in the page 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=049C2F03A3B4453C8A7EA2849B786F422A09D7C01A4EF34063CC3D973ACF4771 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 2026-09-18 17:27:09 [ 90s] -->> 116.202.120.166:443 (download.torproject.org) <<-- ----------------------------------------------------- Start 2026-09-18 17:27:09 -->> 116.202.120.165:443 (download.torproject.org) <<-- Further IP addresses: 95.216.163.36 116.202.120.166 204.8.99.144 204.8.99.146 2a01:4f8:fff0:4f:266:37ff:fe2c:5d19 2620:7:6002:0:466:39ff:fe7f:1826 2a01:4f9:c010:19eb::1 2a01:4f8:fff0:4f:266:37ff:feae:3bbc 2620:7:6002:0:466:39ff:fe32:e3dd rDNS (116.202.120.165): web-fsn-01.torproject.org. Service detected: HTTP Testing for server implementation bugs No bugs found. Testing HTTP header response @ "/" HTTP Status Code 200 OK HTTP clock skew -1 sec from localtime Strict Transport Security 182 days=15768000 s, just this domain, preload Public Key Pinning -- Server banner Apache Application banner -- Cookie(s) (none issued at "/") Security headers X-Frame-Options: sameorigin X-Content-Type-Options: nosniff Content-Security-Policy: default-src 'self'; img-src 'self' data:; script-src 'self' 'sha256-NQWfopTOm+SvytoirB0jAiCt3z9pFqb1+j8bUOGUWHI=' X-XSS-Protection: 1 Referrer-Policy: no-referrer 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) potentially NOT ok, "gzip" HTTP compression detected. - only supplied "/" tested Can be ignored for static pages or if no secrets in the page 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=049C2F03A3B4453C8A7EA2849B786F422A09D7C01A4EF34063CC3D973ACF4771 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 2026-09-18 17:28:36 [ 177s] -->> 116.202.120.165:443 (download.torproject.org) <<-- ----------------------------------------------------- Start 2026-09-18 17:28:36 -->> 204.8.99.144:443 (download.torproject.org) <<-- Further IP addresses: 95.216.163.36 116.202.120.166 116.202.120.165 204.8.99.146 2a01:4f8:fff0:4f:266:37ff:fe2c:5d19 2620:7:6002:0:466:39ff:fe7f:1826 2a01:4f9:c010:19eb::1 2a01:4f8:fff0:4f:266:37ff:feae:3bbc 2620:7:6002:0:466:39ff:fe32:e3dd rDNS (204.8.99.144): web-dal-07.torproject.org. 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 182 days=15768000 s, just this domain, preload Public Key Pinning -- Server banner Apache Application banner -- Cookie(s) (none issued at "/") Security headers X-Frame-Options: sameorigin X-Content-Type-Options: nosniff Content-Security-Policy: default-src 'self'; img-src 'self' data:; script-src 'self' 'sha256-NQWfopTOm+SvytoirB0jAiCt3z9pFqb1+j8bUOGUWHI=' X-XSS-Protection: 1 Referrer-Policy: no-referrer 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) potentially NOT ok, "gzip" HTTP compression detected. - only supplied "/" tested Can be ignored for static pages or if no secrets in the page 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=049C2F03A3B4453C8A7EA2849B786F422A09D7C01A4EF34063CC3D973ACF4771 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 2026-09-18 17:29:22 [ 223s] -->> 204.8.99.144:443 (download.torproject.org) <<-- ----------------------------------------------------- Start 2026-09-18 17:29:22 -->> 204.8.99.146:443 (download.torproject.org) <<-- Further IP addresses: 95.216.163.36 116.202.120.166 116.202.120.165 204.8.99.144 2a01:4f8:fff0:4f:266:37ff:fe2c:5d19 2620:7:6002:0:466:39ff:fe7f:1826 2a01:4f9:c010:19eb::1 2a01:4f8:fff0:4f:266:37ff:feae:3bbc 2620:7:6002:0:466:39ff:fe32:e3dd rDNS (204.8.99.146): web-dal-08.torproject.org. 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 182 days=15768000 s, just this domain, preload Public Key Pinning -- Server banner Apache Application banner -- Cookie(s) (none issued at "/") Security headers X-Frame-Options: sameorigin X-Content-Type-Options: nosniff Content-Security-Policy: default-src 'self'; img-src 'self' data:; script-src 'self' 'sha256-NQWfopTOm+SvytoirB0jAiCt3z9pFqb1+j8bUOGUWHI=' X-XSS-Protection: 1 Referrer-Policy: no-referrer 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) potentially NOT ok, "gzip" HTTP compression detected. - only supplied "/" tested Can be ignored for static pages or if no secrets in the page 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=049C2F03A3B4453C8A7EA2849B786F422A09D7C01A4EF34063CC3D973ACF4771 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 2026-09-18 17:30:10 [ 271s] -->> 204.8.99.146:443 (download.torproject.org) <<-- ----------------------------------------------------- Start 2026-09-18 17:30:11 -->> 95.216.163.36:443 (download.torproject.org) <<-- Further IP addresses: 116.202.120.166 116.202.120.165 204.8.99.144 204.8.99.146 2a01:4f8:fff0:4f:266:37ff:fe2c:5d19 2620:7:6002:0:466:39ff:fe7f:1826 2a01:4f9:c010:19eb::1 2a01:4f8:fff0:4f:266:37ff:feae:3bbc 2620:7:6002:0:466:39ff:fe32:e3dd rDNS (95.216.163.36): hetzner-hel1-03.torproject.org. 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 182 days=15768000 s, just this domain, preload Public Key Pinning -- Server banner Apache Application banner -- Cookie(s) (none issued at "/") Security headers X-Frame-Options: sameorigin X-Content-Type-Options: nosniff Content-Security-Policy: default-src 'self'; img-src 'self' data:; script-src 'self' 'sha256-NQWfopTOm+SvytoirB0jAiCt3z9pFqb1+j8bUOGUWHI=' X-XSS-Protection: 1 Referrer-Policy: no-referrer 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) potentially NOT ok, "gzip" HTTP compression detected. - only supplied "/" tested Can be ignored for static pages or if no secrets in the page 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=049C2F03A3B4453C8A7EA2849B786F422A09D7C01A4EF34063CC3D973ACF4771 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 2026-09-18 17:31:49 [ 370s] -->> 95.216.163.36:443 (download.torproject.org) <<-- ----------------------------------------------------- Done testing now all IP addresses (on port 443): 116.202.120.166 116.202.120.165 204.8.99.144 204.8.99.146 95.216.163.36
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.