Deep SSL/TLS Vulnerability Test
This report provides a deep analysis of the SSL/TLS configuration of extend.app. It checks for protocol support, cipher strength, and known vulnerabilities.
Scan Results
Testing all IP addresses (port 443): 198.49.23.144 198.49.23.145 198.185.159.144 198.185.159.145 ----------------------------------------------------- Start 2026-02-13 03:54:55 -->> 198.49.23.144:443 (extend.app) <<-- Further IP addresses: 198.185.159.145 198.49.23.145 198.185.159.144 rDNS (198.49.23.144): -- Service detected: HTTP Testing for server implementation bugs No bugs found. Testing HTTP header response @ "/" HTTP Status Code 301 Moved Permanently, redirecting to "http://www.extend.ai" -- Redirect to insecure URL (NOT ok) HTTP clock skew -2620 sec from localtime HTTP Age (RFC 7234) 43692 Strict Transport Security not offered Public Key Pinning -- Server banner Squarespace Application banner -- Cookie(s) 1 issued: 1/1 secure, NOT HttpOnly -- maybe better try target URL of 30x 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=4915DCCD398B7CD70038BAD6FC64AA6D44A74D8BDF69314B0F6AC9B01FAC8547 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 2026-02-13 03:55:37 [ 50s] -->> 198.49.23.144:443 (extend.app) <<-- ----------------------------------------------------- Start 2026-02-13 03:55:38 -->> 198.49.23.145:443 (extend.app) <<-- Further IP addresses: 198.185.159.145 198.49.23.144 198.185.159.144 rDNS (198.49.23.145): -- Service detected: HTTP Testing for server implementation bugs No bugs found. Testing HTTP header response @ "/" HTTP Status Code 301 Moved Permanently, redirecting to "http://www.extend.ai" -- Redirect to insecure URL (NOT ok) HTTP clock skew -2620 sec from localtime HTTP Age (RFC 7234) 43742 Strict Transport Security not offered Public Key Pinning -- Server banner Squarespace Application banner -- Cookie(s) 1 issued: 1/1 secure, NOT HttpOnly -- maybe better try target URL of 30x 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=4915DCCD398B7CD70038BAD6FC64AA6D44A74D8BDF69314B0F6AC9B01FAC8547 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 2026-02-13 03:56:28 [ 101s] -->> 198.49.23.145:443 (extend.app) <<-- ----------------------------------------------------- Start 2026-02-13 03:56:28 -->> 198.185.159.144:443 (extend.app) <<-- Further IP addresses: 198.185.159.145 198.49.23.144 198.49.23.145 rDNS (198.185.159.144): -- Service detected: HTTP Testing for server implementation bugs No bugs found. Testing HTTP header response @ "/" HTTP Status Code 301 Moved Permanently, redirecting to "http://www.extend.ai" -- Redirect to insecure URL (NOT ok) HTTP clock skew -2620 sec from localtime HTTP Age (RFC 7234) 43792 Strict Transport Security not offered Public Key Pinning -- Server banner Squarespace Application banner -- Cookie(s) 1 issued: 1/1 secure, NOT HttpOnly -- maybe better try target URL of 30x 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=4915DCCD398B7CD70038BAD6FC64AA6D44A74D8BDF69314B0F6AC9B01FAC8547 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 2026-02-13 03:57:18 [ 151s] -->> 198.185.159.144:443 (extend.app) <<-- ----------------------------------------------------- Start 2026-02-13 03:57:19 -->> 198.185.159.145:443 (extend.app) <<-- Further IP addresses: 198.49.23.144 198.49.23.145 198.185.159.144 rDNS (198.185.159.145): -- Service detected: HTTP Testing for server implementation bugs No bugs found. Testing HTTP header response @ "/" HTTP Status Code 301 Moved Permanently, redirecting to "http://www.extend.ai" -- Redirect to insecure URL (NOT ok) HTTP clock skew -2620 sec from localtime HTTP Age (RFC 7234) 43841 Strict Transport Security not offered Public Key Pinning -- Server banner Squarespace Application banner -- Cookie(s) 1 issued: 1/1 secure, NOT HttpOnly -- maybe better try target URL of 30x 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=4915DCCD398B7CD70038BAD6FC64AA6D44A74D8BDF69314B0F6AC9B01FAC8547 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 2026-02-13 03:58:08 [ 201s] -->> 198.185.159.145:443 (extend.app) <<-- ----------------------------------------------------- Done testing now all IP addresses (on port 443): 198.49.23.144 198.49.23.145 198.185.159.144 198.185.159.145
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.