Deep SSL/TLS Vulnerability Test
This report provides a deep analysis of the SSL/TLS configuration of ad.doubleclick.net. It checks for protocol support, cipher strength, and known vulnerabilities.
Scan Results
Testing all IP addresses (port 443): 74.125.202.149 74.125.202.148 ----------------------------------------------------- Start 2026-05-20 18:28:52 -->> 74.125.202.149:443 (ad.doubleclick.net) <<-- Further IP addresses: 74.125.202.148 rDNS (74.125.202.149): io-in-f149.1e100.net. Service detected: HTTP Testing for server implementation bugs No bugs found. Testing HTTP header response @ "/" HTTP Status Code 301 Moved Permanently, redirecting to "https://marketingplatform.google.com/about/enterprise/" HTTP clock skew 0 sec from localtime HTTP Age (RFC 7234) 28 Strict Transport Security not offered Public Key Pinning -- Server banner sffe Application banner -- Cookie(s) (none issued at "/") -- maybe better try target URL of 30x Security headers X-Content-Type-Options: nosniff Cross-Origin-Resource-Policy: cross-origin X-XSS-Protection: 0 Cache-Control: public, max-age=1800 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) VULNERABLE, uses 64 bit block ciphers 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=C3CDE7664F8EE3E6D5A603B2AACF4AD90512C524624ACF407D13AA26C82BF62F 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: ECDHE-ECDSA-AES128-SHA ECDHE-ECDSA-AES256-SHA ECDHE-RSA-AES128-SHA ECDHE-RSA-AES256-SHA AES128-SHA AES256-SHA DES-CBC3-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 2026-05-20 18:29:38 [ 55s] -->> 74.125.202.149:443 (ad.doubleclick.net) <<-- ----------------------------------------------------- Start 2026-05-20 18:29:39 -->> 74.125.202.148:443 (ad.doubleclick.net) <<-- Further IP addresses: 74.125.202.149 rDNS (74.125.202.148): io-in-f148.1e100.net. Service detected: HTTP Testing for server implementation bugs No bugs found. Testing HTTP header response @ "/" HTTP Status Code 301 Moved Permanently, redirecting to "https://marketingplatform.google.com/about/enterprise/" HTTP clock skew 0 sec from localtime HTTP Age (RFC 7234) 78 Strict Transport Security not offered Public Key Pinning -- Server banner sffe Application banner -- Cookie(s) (none issued at "/") -- maybe better try target URL of 30x Security headers X-Content-Type-Options: nosniff Cross-Origin-Resource-Policy: cross-origin X-XSS-Protection: 0 Cache-Control: public, max-age=1800 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) VULNERABLE, uses 64 bit block ciphers 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=C3CDE7664F8EE3E6D5A603B2AACF4AD90512C524624ACF407D13AA26C82BF62F 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: ECDHE-ECDSA-AES128-SHA ECDHE-ECDSA-AES256-SHA ECDHE-RSA-AES128-SHA ECDHE-RSA-AES256-SHA AES128-SHA AES256-SHA DES-CBC3-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 2026-05-20 18:30:31 [ 108s] -->> 74.125.202.148:443 (ad.doubleclick.net) <<-- ----------------------------------------------------- Done testing now all IP addresses (on port 443): 74.125.202.149 74.125.202.148
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.