Deep SSL/TLS Vulnerability Test
This report provides a deep analysis of the SSL/TLS configuration of dns.google. It checks for protocol support, cipher strength, and known vulnerabilities.
Scan Results
Testing all IP addresses (port 443): 8.8.4.4 8.8.8.8 ----------------------------------------------------- Start 2026-03-18 05:42:12 -->> 8.8.4.4:443 (dns.google) <<-- Further IP addresses: 8.8.8.8 2001:4860:4860::8888 2001:4860:4860::8844 rDNS (8.8.4.4): dns.google. 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 365 days=31536000 s, includeSubDomains, preload Public Key Pinning -- Server banner scaffolding on HTTPServer2 Application banner -- Cookie(s) (none issued at "/") Security headers X-Frame-Options: SAMEORIGIN X-Content-Type-Options: nosniff Content-Security-Policy: object-src 'none';base-uri 'self';script-src 'nonce-8b0vO9FXqAYa7MSjSlJLVA' 'strict-dynamic' 'report-sample' 'unsafe-eval' 'unsafe-inline' https: http:;report-uri https://csp.withgoogle.com/csp/honest_dns/1_0;frame-ancestors none' Content-Security-Policy-Report-Only: script-src 'none'; form-action 'none'; frame-src 'none'; report-uri https://csp.withgoogle.com/csp/scaffolding/ntdsgswbsc:55:0 X-XSS-Protection: 0 Cache-Control: public, max-age=300 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=6BF293EB806112C6EE9420C538A4FE98BB165FB900E58559679D30AA76D247C5 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 not vulnerable (OK) Winshock (CVE-2014-6321), experimental not vulnerable (OK) RC4 (CVE-2013-2566, CVE-2015-2808) no RC4 ciphers detected (OK) Done 2026-03-18 05:43:13 [ 72s] -->> 8.8.4.4:443 (dns.google) <<-- ----------------------------------------------------- Start 2026-03-18 05:43:13 -->> 8.8.8.8:443 (dns.google) <<-- Further IP addresses: 8.8.4.4 2001:4860:4860::8888 2001:4860:4860::8844 rDNS (8.8.8.8): dns.google. 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 HTTP Age (RFC 7234) 93 Strict Transport Security 365 days=31536000 s, includeSubDomains, preload Public Key Pinning -- Server banner scaffolding on HTTPServer2 Application banner -- Cookie(s) (none issued at "/") Security headers X-Frame-Options: SAMEORIGIN X-Content-Type-Options: nosniff Content-Security-Policy: object-src 'none';base-uri 'self';script-src 'nonce-IrMPPLAMQmhqZ2_NcnmwIg' 'strict-dynamic' 'report-sample' 'unsafe-eval' 'unsafe-inline' https: http:;report-uri https://csp.withgoogle.com/csp/honest_dns/1_0;frame-ancestors none' Content-Security-Policy-Report-Only: script-src 'none'; form-action 'none'; frame-src 'none'; report-uri https://csp.withgoogle.com/csp/scaffolding/ntdsgswbsc:55:0 X-XSS-Protection: 0 Cache-Control: public, max-age=300 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=6BF293EB806112C6EE9420C538A4FE98BB165FB900E58559679D30AA76D247C5 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 not vulnerable (OK) Winshock (CVE-2014-6321), experimental not vulnerable (OK) RC4 (CVE-2013-2566, CVE-2015-2808) no RC4 ciphers detected (OK) Done 2026-03-18 05:44:13 [ 132s] -->> 8.8.8.8:443 (dns.google) <<-- ----------------------------------------------------- Done testing now all IP addresses (on port 443): 8.8.4.4 8.8.8.8
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.