##################################################################### testssl.sh version 3.2.2 from https://testssl.sh/ This program is free software. Distribution and modification under GPLv2 permitted. USAGE w/o ANY WARRANTY. USE IT AT YOUR OWN RISK! Please file bugs @ https://testssl.sh/bugs/ ##################################################################### Using OpenSSL 3.6.0 (Oct 1 2025) [~96 ciphers] on colocrossing:/nix/store/k0gl1zc7f5hk87lylxwbipb0b870bcmk-openssl-3.6.0-bin/bin/openssl Start 2025-12-05 00:04:26 -->> 23.94.65.218:443 (zerossl.lantian.pub) <<-- Further IP addresses: 2001:470:1f07:6fe::1 rDNS (23.94.65.218): colocrossing.lantian.pub. Service detected: HTTP Testing protocols via sockets except NPN+ALPN SSLv2 not offered (OK) SSLv3 not offered (OK) TLS 1 not offered TLS 1.1 not offered TLS 1.2 offered (OK) TLS 1.3 offered (OK): final NPN/SPDY not offered ALPN/HTTP2 h2, http/1.1 (offered) Testing for server implementation bugs No bugs found. Testing cipher categories NULL ciphers (no encryption) not offered (OK) Anonymous NULL Ciphers (no authentication) not offered (OK) Export ciphers (w/o ADH+NULL) not offered (OK) LOW: 64 Bit + DES, RC[2,4], MD5 (w/o export) not offered (OK) Triple DES Ciphers / IDEA not offered Obsoleted CBC ciphers (AES, ARIA etc.) not offered Strong encryption (AEAD ciphers) with no FS not offered Forward Secrecy strong encryption (AEAD ciphers) offered (OK) Testing server's cipher preferences Hexcode Cipher Suite Name (OpenSSL) KeyExch. Encryption Bits Cipher Suite Name (IANA/RFC) ----------------------------------------------------------------------------------------------------------------------------- SSLv2 - SSLv3 - TLSv1 - TLSv1.1 - TLSv1.2 (no server order, thus listed by strength) xc030 ECDHE-RSA-AES256-GCM-SHA384 ECDH 253 AESGCM 256 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 xc02c ECDHE-ECDSA-AES256-GCM-SHA384 ECDH 253 AESGCM 256 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 x9f DHE-RSA-AES256-GCM-SHA384 DH 4096 AESGCM 256 TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 xcca9 ECDHE-ECDSA-CHACHA20-POLY1305 ECDH 253 ChaCha20 256 TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 xcca8 ECDHE-RSA-CHACHA20-POLY1305 ECDH 253 ChaCha20 256 TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 xccaa DHE-RSA-CHACHA20-POLY1305 DH 4096 ChaCha20 256 TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256 xc02f ECDHE-RSA-AES128-GCM-SHA256 ECDH 253 AESGCM 128 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 xc02b ECDHE-ECDSA-AES128-GCM-SHA256 ECDH 253 AESGCM 128 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 x9e DHE-RSA-AES128-GCM-SHA256 DH 4096 AESGCM 128 TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 TLSv1.3 (no server order, thus listed by strength) x1302 TLS_AES_256_GCM_SHA384 ECDH/MLKEM AESGCM 256 TLS_AES_256_GCM_SHA384 x1303 TLS_CHACHA20_POLY1305_SHA256 ECDH/MLKEM ChaCha20 256 TLS_CHACHA20_POLY1305_SHA256 x1301 TLS_AES_128_GCM_SHA256 ECDH/MLKEM AESGCM 128 TLS_AES_128_GCM_SHA256 Has server cipher order? no (limited sense as client will pick) Testing robust forward secrecy (FS) -- omitting Null Authentication/Encryption, 3DES, RC4 FS is offered (OK) , ciphers follow (client/browser support is important here) Hexcode Cipher Suite Name (OpenSSL) KeyExch. Encryption Bits Cipher Suite Name (IANA/RFC) ----------------------------------------------------------------------------------------------------------------------------- x1302 TLS_AES_256_GCM_SHA384 ECDH/MLKEM AESGCM 256 TLS_AES_256_GCM_SHA384 x1303 TLS_CHACHA20_POLY1305_SHA256 ECDH/MLKEM ChaCha20 256 TLS_CHACHA20_POLY1305_SHA256 xc030 ECDHE-RSA-AES256-GCM-SHA384 ECDH 253 AESGCM 256 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 xc02c ECDHE-ECDSA-AES256-GCM-SHA384 ECDH 253 AESGCM 256 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 x9f DHE-RSA-AES256-GCM-SHA384 DH 4096 AESGCM 256 TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 xcca9 ECDHE-ECDSA-CHACHA20-POLY1305 ECDH 253 ChaCha20 256 TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 xcca8 ECDHE-RSA-CHACHA20-POLY1305 ECDH 253 ChaCha20 256 TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 xccaa DHE-RSA-CHACHA20-POLY1305 DH 4096 ChaCha20 256 TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256 x1301 TLS_AES_128_GCM_SHA256 ECDH/MLKEM AESGCM 128 TLS_AES_128_GCM_SHA256 xc02f ECDHE-RSA-AES128-GCM-SHA256 ECDH 253 AESGCM 128 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 xc02b ECDHE-ECDSA-AES128-GCM-SHA256 ECDH 253 AESGCM 128 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 x9e DHE-RSA-AES128-GCM-SHA256 DH 4096 AESGCM 128 TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 KEMs offered SecP256r1MLKEM768 X25519MLKEM768 Elliptic curves offered: prime256v1 secp384r1 X25519 DH group offered: Unknown DH group (4096 bits) TLS 1.2 sig_algs offered: RSA-PSS-RSAE+SHA512 RSA-PSS-RSAE+SHA384 RSA-PSS-RSAE+SHA256 RSA+SHA512 RSA+SHA384 RSA+SHA256 RSA+SHA224 ECDSA+SHA512 ECDSA+SHA384 ECDSA+SHA256 ECDSA+SHA224 TLS 1.3 sig_algs offered: ECDSA+SHA384 RSA-PSS-RSAE+SHA512 RSA-PSS-RSAE+SHA384 RSA-PSS-RSAE+SHA256 Testing server defaults (Server Hello) TLS extensions (standard) "server name/#0" "max fragment length/#1" "supported_groups/#10" "EC point formats/#11" "application layer protocol negotiation/#16" "extended master secret/#23" "session ticket/#35" "supported versions/#43" "key share/#51" "renegotiation info/#65281" Session Ticket RFC 5077 hint 86400 seconds, session tickets keys seems to be rotated < daily SSL Session ID support yes Session Resumption Tickets: yes, ID: yes TLS clock skew Random values, no fingerprinting possible Certificate Compression none Client Authentication none Server Certificate #1 Signature Algorithm SHA384 with RSA Server key size RSA 4096 bits (exponent is 65537) Server key usage Digital Signature, Key Encipherment Server extended key usage TLS Web Server Authentication Serial 964023056C3498BDC73986721182BD9E (OK: length 16) Fingerprints SHA1 2E62AA8224AEAF4FA0A6B6A9B71DC38EEE8711A3 SHA256 F70DF8B702D2B9BC62D3D7B52E1950B2F1605EC02224F894F22E0B264E7C80A2 Common Name (CN) zerossl.lantian.pub (CN in response to request w/o SNI: 127.0.0.1 ) subjectAltName (SAN) zerossl.lantian.pub Trust (hostname) Ok via SAN and CN (SNI mandatory) Chain of trust Ok EV cert (experimental) no Certificate Validity (UTC) 81 >= 60 days (2025-11-26 00:00 --> 2026-02-24 23:59) ETS/"eTLS", visibility info not present Certificate Revocation List -- OCSP URI http://zerossl.ocsp.sectigo.com OCSP stapling not offered OCSP must staple extension -- DNS CAA RR (experimental) available - please check for match with "Issuer" below =, iodef=mailto:b980120@hotmail.com, issue=letsencrypt.org, issue=pki.goog;, issue=sectigo.com, issuewild=letsencrypt.org, issuewild=pki.goog;, issuewild=sectigo.com Certificate Transparency yes (certificate extension) Certificates provided 3 Issuer ZeroSSL RSA Domain Secure Site CA (ZeroSSL from AT) Intermediate cert validity #1: ok > 40 days (2030-01-29 23:59). ZeroSSL RSA Domain Secure Site CA <-- USERTrust RSA Certification Authority #2: ok > 40 days (2028-12-31 23:59). USERTrust RSA Certification Authority <-- AAA Certificate Services Intermediate Bad OCSP (exp.) Ok Server Certificate #2 Signature Algorithm ECDSA with SHA384 Server key size EC 384 bits (curve P-384) Server key usage Digital Signature Server extended key usage TLS Web Server Authentication Serial 1CD088310B007D9A3A85701C2D7AE6B7 (OK: length 16) Fingerprints SHA1 88ADB8C72F517D6D70D9660457EC22150B2C6708 SHA256 F65EE2B3DF960F4FBC8ED5B33D1841CD589505D058D40587DAA5C9B39FA94785 Common Name (CN) zerossl.lantian.pub (CN in response to request w/o SNI: 127.0.0.1 ) subjectAltName (SAN) zerossl.lantian.pub Trust (hostname) Ok via SAN and CN (SNI mandatory) Chain of trust Ok EV cert (experimental) no Certificate Validity (UTC) 81 >= 60 days (2025-11-26 00:00 --> 2026-02-24 23:59) ETS/"eTLS", visibility info not present Certificate Revocation List -- OCSP URI http://zerossl.ocsp.sectigo.com OCSP stapling not offered OCSP must staple extension -- DNS CAA RR (experimental) available - please check for match with "Issuer" below =, iodef=mailto:b980120@hotmail.com, issue=letsencrypt.org, issue=pki.goog;, issue=sectigo.com, issuewild=letsencrypt.org, issuewild=pki.goog;, issuewild=sectigo.com Certificate Transparency yes (certificate extension) Certificates provided 3 Issuer ZeroSSL ECC Domain Secure Site CA (ZeroSSL from AT) Intermediate cert validity #1: ok > 40 days (2030-01-29 23:59). ZeroSSL ECC Domain Secure Site CA <-- USERTrust ECC Certification Authority #2: ok > 40 days (2028-12-31 23:59). USERTrust ECC Certification Authority <-- AAA Certificate Services Intermediate Bad OCSP (exp.) Ok 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 lantian/colocrossing' Application banner -- Cookie(s) (none issued at "/") Security headers X-Frame-Options: SAMEORIGIN X-Content-Type-Options: nosniff Permissions-Policy: interest-cohort=() X-XSS-Protection: 1; mode=block Permissions-Policy: interest-cohort=() Referrer-Policy: strict-origin-when-cross-origin Cache-Control: private Reverse Proxy banner -- Testing vulnerabilities Heartbleed (CVE-2014-0160) not vulnerable (OK), no heartbeat extension CCS (CVE-2014-0224) not vulnerable (OK) Ticketbleed (CVE-2016-9244), experiment. not vulnerable (OK) ROBOT Server does not support any cipher suites that use RSA key transport 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, "br 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), no SSLv3 support 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=F70DF8B702D2B9BC62D3D7B52E1950B2F1605EC02224F894F22E0B264E7C80A2 LOGJAM (CVE-2015-4000), experimental not vulnerable (OK): no DH EXPORT ciphers, no common prime detected 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) Running client simulations (HTTP) via sockets Browser Protocol Cipher Suite Name (OpenSSL) Forward Secrecy ------------------------------------------------------------------------------------------------ Android 7.0 (native) TLSv1.2 ECDHE-RSA-AES128-GCM-SHA256 256 bit ECDH (P-256) Android 8.1 (native) TLSv1.2 ECDHE-ECDSA-AES128-GCM-SHA256 253 bit ECDH (X25519) Android 9.0 (native) TLSv1.3 TLS_AES_128_GCM_SHA256 253 bit ECDH (X25519) Android 10.0 (native) TLSv1.3 TLS_AES_128_GCM_SHA256 253 bit ECDH (X25519) Android 11/12 (native) TLSv1.3 TLS_AES_128_GCM_SHA256 253 bit ECDH (X25519) Android 13/14 (native) TLSv1.3 TLS_AES_128_GCM_SHA256 253 bit ECDH (X25519) Android 15 (native) TLSv1.3 TLS_AES_128_GCM_SHA256 X25519MLKEM768 Chrome 101 (Win 10) TLSv1.3 TLS_AES_128_GCM_SHA256 253 bit ECDH (X25519) Chromium 137 (Win 11) TLSv1.3 TLS_AES_128_GCM_SHA256 X25519MLKEM768 Firefox 100 (Win 10) TLSv1.3 TLS_AES_128_GCM_SHA256 253 bit ECDH (X25519) Firefox 137 (Win 11) TLSv1.3 TLS_AES_128_GCM_SHA256 X25519MLKEM768 IE 8 Win 7 No connection IE 11 Win 7 TLSv1.2 DHE-RSA-AES256-GCM-SHA384 4096 bit DH IE 11 Win 8.1 TLSv1.2 DHE-RSA-AES256-GCM-SHA384 4096 bit DH IE 11 Win Phone 8.1 TLSv1.2 ECDHE-ECDSA-AES128-GCM-SHA256 256 bit ECDH (P-256) IE 11 Win 10 TLSv1.2 ECDHE-ECDSA-AES256-GCM-SHA384 256 bit ECDH (P-256) Edge 15 Win 10 TLSv1.2 ECDHE-ECDSA-AES256-GCM-SHA384 253 bit ECDH (X25519) Edge 101 Win 10 21H2 TLSv1.3 TLS_AES_128_GCM_SHA256 253 bit ECDH (X25519) Edge 133 Win 11 23H2 TLSv1.3 TLS_AES_128_GCM_SHA256 X25519MLKEM768 Safari 18.4 (iOS 18.4) TLSv1.3 TLS_AES_128_GCM_SHA256 253 bit ECDH (X25519) Safari 15.4 (macOS 12.3.1) TLSv1.3 TLS_AES_128_GCM_SHA256 253 bit ECDH (X25519) Safari 18.4 (macOS 15.4) TLSv1.3 TLS_AES_128_GCM_SHA256 253 bit ECDH (X25519) Java 7u25 No connection Java 8u442 (OpenJDK) TLSv1.3 TLS_AES_256_GCM_SHA384 253 bit ECDH (X25519) Java 11.0.2 (OpenJDK) TLSv1.3 TLS_AES_128_GCM_SHA256 256 bit ECDH (P-256) Java 17.0.3 (OpenJDK) TLSv1.3 TLS_AES_256_GCM_SHA384 253 bit ECDH (X25519) Java 21.0.6 (OpenJDK) TLSv1.3 TLS_AES_256_GCM_SHA384 253 bit ECDH (X25519) go 1.17.8 TLSv1.3 TLS_AES_128_GCM_SHA256 253 bit ECDH (X25519) LibreSSL 3.3.6 (macOS) TLSv1.3 TLS_CHACHA20_POLY1305_SHA256 253 bit ECDH (X25519) OpenSSL 1.0.2e TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256 bit ECDH (P-256) OpenSSL 1.1.1d (Debian) TLSv1.3 TLS_AES_256_GCM_SHA384 253 bit ECDH (X25519) OpenSSL 3.0.15 (Debian) TLSv1.3 TLS_AES_256_GCM_SHA384 253 bit ECDH (X25519) OpenSSL 3.5.0 (git) TLSv1.3 TLS_AES_256_GCM_SHA384 X25519MLKEM768 Apple Mail (16.0) TLSv1.2 ECDHE-ECDSA-AES256-GCM-SHA384 256 bit ECDH (P-256) Thunderbird (91.9) TLSv1.3 TLS_AES_128_GCM_SHA256 253 bit ECDH (X25519) Rating (experimental) Rating specs (not complete) SSL Labs's 'SSL Server Rating Guide' (version 2009r from 2025-05-16) Specification documentation https://github.com/ssllabs/research/wiki/SSL-Server-Rating-Guide Protocol Support (weighted) 100 (30) Key Exchange (weighted) 100 (30) Cipher Strength (weighted) 90 (36) Final Score 96 Overall Grade A+ Done 2025-12-05 00:05:42 [ 79s] -->> 23.94.65.218:443 (zerossl.lantian.pub) <<--