Deep SSL/TLS Vulnerability Test
This report provides a deep analysis of the SSL/TLS configuration of rtb-csync.smartadserver.com. It checks for protocol support, cipher strength, and known vulnerabilities.
Scan Results
Testing all IP addresses (port 443): 23.83.76.90 23.83.76.73 23.83.76.89 23.83.76.74 23.83.76.105 23.83.76.57 23.83.76.106 23.83.76.58 ----------------------------------------------------- Start 2026-05-21 19:02:44 -->> 23.83.76.90:443 (rtb-csync.smartadserver.com) <<-- Further IP addresses: 23.83.76.58 23.83.76.73 23.83.76.89 23.83.76.74 23.83.76.105 23.83.76.57 23.83.76.106 rDNS (23.83.76.90): -- Service detected: HTTP Testing for server implementation bugs No bugs found. Testing HTTP header response @ "/" HTTP Status Code 404 Not Found (Hint: supply a path which doesn't give a "404 Not Found") HTTP clock skew 0 sec from localtime 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 404 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) 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=0B0F60D010E99FFF0E48FC3A7183641C8CB952A637400BD75192B1E90BFD57D7 LOGJAM (CVE-2015-4000), experimental common prime with 2048 bits detected: RFC7919/ffdhe2048 (2048 bits), but no DH EXPORT ciphers 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 2026-05-21 19:03:35 [ 62s] -->> 23.83.76.90:443 (rtb-csync.smartadserver.com) <<-- ----------------------------------------------------- Start 2026-05-21 19:03:35 -->> 23.83.76.73:443 (rtb-csync.smartadserver.com) <<-- Further IP addresses: 23.83.76.58 23.83.76.90 23.83.76.89 23.83.76.74 23.83.76.105 23.83.76.57 23.83.76.106 rDNS (23.83.76.73): -- Service detected: HTTP Testing for server implementation bugs No bugs found. Testing HTTP header response @ "/" HTTP Status Code 404 Not Found (Hint: supply a path which doesn't give a "404 Not Found") HTTP clock skew -1 sec from localtime 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 404 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) 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=0B0F60D010E99FFF0E48FC3A7183641C8CB952A637400BD75192B1E90BFD57D7 LOGJAM (CVE-2015-4000), experimental common prime with 2048 bits detected: RFC7919/ffdhe2048 (2048 bits), but no DH EXPORT ciphers 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 2026-05-21 19:04:33 [ 120s] -->> 23.83.76.73:443 (rtb-csync.smartadserver.com) <<-- ----------------------------------------------------- Start 2026-05-21 19:04:34 -->> 23.83.76.89:443 (rtb-csync.smartadserver.com) <<-- Further IP addresses: 23.83.76.58 23.83.76.90 23.83.76.73 23.83.76.74 23.83.76.105 23.83.76.57 23.83.76.106 rDNS (23.83.76.89): -- Service detected: HTTP Testing for server implementation bugs No bugs found. Testing HTTP header response @ "/" HTTP Status Code 404 Not Found (Hint: supply a path which doesn't give a "404 Not Found") HTTP clock skew 0 sec from localtime 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 404 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) 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=0B0F60D010E99FFF0E48FC3A7183641C8CB952A637400BD75192B1E90BFD57D7 LOGJAM (CVE-2015-4000), experimental common prime with 2048 bits detected: RFC7919/ffdhe2048 (2048 bits), but no DH EXPORT ciphers 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 2026-05-21 19:05:28 [ 175s] -->> 23.83.76.89:443 (rtb-csync.smartadserver.com) <<-- ----------------------------------------------------- Start 2026-05-21 19:05:28 -->> 23.83.76.74:443 (rtb-csync.smartadserver.com) <<-- Further IP addresses: 23.83.76.58 23.83.76.90 23.83.76.73 23.83.76.89 23.83.76.105 23.83.76.57 23.83.76.106 rDNS (23.83.76.74): -- Service detected: HTTP Testing for server implementation bugs No bugs found. Testing HTTP header response @ "/" HTTP Status Code 404 Not Found (Hint: supply a path which doesn't give a "404 Not Found") HTTP clock skew 0 sec from localtime 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 404 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) 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=0B0F60D010E99FFF0E48FC3A7183641C8CB952A637400BD75192B1E90BFD57D7 LOGJAM (CVE-2015-4000), experimental common prime with 2048 bits detected: RFC7919/ffdhe2048 (2048 bits), but no DH EXPORT ciphers 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 2026-05-21 19:06:22 [ 229s] -->> 23.83.76.74:443 (rtb-csync.smartadserver.com) <<-- ----------------------------------------------------- Start 2026-05-21 19:06:22 -->> 23.83.76.105:443 (rtb-csync.smartadserver.com) <<-- Further IP addresses: 23.83.76.58 23.83.76.90 23.83.76.73 23.83.76.89 23.83.76.74 23.83.76.57 23.83.76.106 rDNS (23.83.76.105): -- Service detected: HTTP Testing for server implementation bugs No bugs found. Testing HTTP header response @ "/" HTTP Status Code 404 Not Found (Hint: supply a path which doesn't give a "404 Not Found") HTTP clock skew -1 sec from localtime 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 404 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) 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=0B0F60D010E99FFF0E48FC3A7183641C8CB952A637400BD75192B1E90BFD57D7 LOGJAM (CVE-2015-4000), experimental common prime with 2048 bits detected: RFC7919/ffdhe2048 (2048 bits), but no DH EXPORT ciphers 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 2026-05-21 19:07:31 [ 298s] -->> 23.83.76.105:443 (rtb-csync.smartadserver.com) <<-- ----------------------------------------------------- Start 2026-05-21 19:07:31 -->> 23.83.76.57:443 (rtb-csync.smartadserver.com) <<-- Further IP addresses: 23.83.76.58 23.83.76.90 23.83.76.73 23.83.76.89 23.83.76.74 23.83.76.105 23.83.76.106 rDNS (23.83.76.57): -- Service detected: HTTP Testing for server implementation bugs No bugs found. Testing HTTP header response @ "/" HTTP Status Code 404 Not Found (Hint: supply a path which doesn't give a "404 Not Found") HTTP clock skew 0 sec from localtime 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 404 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) 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=0B0F60D010E99FFF0E48FC3A7183641C8CB952A637400BD75192B1E90BFD57D7 LOGJAM (CVE-2015-4000), experimental common prime with 2048 bits detected: RFC7919/ffdhe2048 (2048 bits), but no DH EXPORT ciphers 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 2026-05-21 19:08:30 [ 357s] -->> 23.83.76.57:443 (rtb-csync.smartadserver.com) <<-- ----------------------------------------------------- Start 2026-05-21 19:08:30 -->> 23.83.76.106:443 (rtb-csync.smartadserver.com) <<-- Further IP addresses: 23.83.76.58 23.83.76.90 23.83.76.73 23.83.76.89 23.83.76.74 23.83.76.105 23.83.76.57 rDNS (23.83.76.106): -- Service detected: HTTP Testing for server implementation bugs No bugs found. Testing HTTP header response @ "/" HTTP Status Code 404 Not Found (Hint: supply a path which doesn't give a "404 Not Found") HTTP clock skew -1 sec from localtime 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 404 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) 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=0B0F60D010E99FFF0E48FC3A7183641C8CB952A637400BD75192B1E90BFD57D7 LOGJAM (CVE-2015-4000), experimental common prime with 2048 bits detected: RFC7919/ffdhe2048 (2048 bits), but no DH EXPORT ciphers 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 2026-05-21 19:09:53 [ 440s] -->> 23.83.76.106:443 (rtb-csync.smartadserver.com) <<-- ----------------------------------------------------- Start 2026-05-21 19:09:53 -->> 23.83.76.58:443 (rtb-csync.smartadserver.com) <<-- Further IP addresses: 23.83.76.90 23.83.76.73 23.83.76.89 23.83.76.74 23.83.76.105 23.83.76.57 23.83.76.106 rDNS (23.83.76.58): -- Service detected: HTTP Testing for server implementation bugs No bugs found. Testing HTTP header response @ "/" HTTP Status Code 404 Not Found (Hint: supply a path which doesn't give a "404 Not Found") HTTP clock skew -1 sec from localtime 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 404 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) 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=0B0F60D010E99FFF0E48FC3A7183641C8CB952A637400BD75192B1E90BFD57D7 LOGJAM (CVE-2015-4000), experimental common prime with 2048 bits detected: RFC7919/ffdhe2048 (2048 bits), but no DH EXPORT ciphers 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 2026-05-21 19:11:12 [ 519s] -->> 23.83.76.58:443 (rtb-csync.smartadserver.com) <<-- ----------------------------------------------------- Done testing now all IP addresses (on port 443): 23.83.76.90 23.83.76.73 23.83.76.89 23.83.76.74 23.83.76.105 23.83.76.57 23.83.76.106 23.83.76.58
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.