##################################################################### testssl version 3.2.4 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 3.6.5 (Sep 29 2026) [~103 ciphers] on kali:/usr/bin/openssl Start 2026-11-04 09:15:32 -->> 34.62.47.252:443 (changelog-backend.shelly.cloud) <<-- rDNS (34.62.47.252): -- 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 not offered and downgraded to a weaker protocol NPN/SPDY not offered ALPN/HTTP2 http/1.1 (offered) 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) xc02c ECDHE-ECDSA-AES256-GCM-SHA384 ECDH 253 AESGCM 256 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 xcca9 ECDHE-ECDSA-CHACHA20-POLY1305 ECDH 253 ChaCha20 256 TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 xc02b ECDHE-ECDSA-AES128-GCM-SHA256 ECDH 253 AESGCM 128 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 TLSv1.3 - Has server cipher order? no -- inconclusive test, matching cipher in list missing, better see above Testing robust forward secrecy (FS) -- omitting Null Authentication/Encryption, 3DES, RC4 FS is offered (OK) ECDHE-ECDSA-AES256-GCM-SHA384 ECDHE-ECDSA-CHACHA20-POLY1305 ECDHE-ECDSA-AES128-GCM-SHA256 KEMs offered None Elliptic curves offered: prime256v1 secp384r1 secp521r1 X25519 X448 TLS 1.2 sig_algs offered: ECDSA+SHA512 ECDSA+SHA384 ECDSA+SHA256 ECDSA+SHA224 Testing server defaults (Server Hello) TLS extensions (standard) "server name/#0" "max fragment length/#1" "EC point formats/#11" "application layer protocol negotiation/#16" "extended master secret/#23" "renegotiation info/#65281" Session Ticket RFC 5077 hint no -- no lifetime advertised SSL Session ID support yes Session Resumption Tickets no, ID: no TLS clock skew Random values, no fingerprinting possible Client Authentication none Signature Algorithm ECDSA with SHA384 Server key size EC 256 bits (curve P-256) Server key usage Digital Signature Server extended key usage TLS Web Server Authentication Serial 0582918DB89B4A8A742D84FD104CDC41D76B (OK: length 18) Fingerprints SHA1 2B1B2A1E33BDD140FA382D85F749503A2CEB16FD SHA256 E619D0A43C9A1D858630CAD4E88265B0818EE3DFA4F706AEE7B740C48C4EA1EF Common Name (CN) changelog-backend.shelly.cloud (CN in response to request w/o SNI: *.shelly.cloud ) subjectAltName (SAN) changelog-backend.shelly.cloud Trust (hostname) Ok via SAN and CN (works w/o SNI) wildcard certificate could be problematic, see other hosts at https://search.censys.io/search?resource=hosts&virtual_hosts=INCLUDE&q=E619D0A43C9A1D858630CAD4E88265B0818EE3DFA4F706AEE7B740C48C4EA1EF Chain of trust Ok EV cert (experimental) no Certificate Validity (UTC) 46 >= 30 days (2026-09-21 09:03 --> 2026-12-20 09:03) ETS/"eTLS", visibility info not present Certificate Revocation List http://ye1.c.lencr.org/108.crl OCSP URI -- OCSP stapling not offered OCSP must staple extension -- DNS CAA RR (experimental) not offered Certificate Transparency yes (certificate extension) Certificates provided 4 Issuer YE1 (Let's Encrypt from US) Intermediate cert validity #1: ok > 40 days (2028-09-02 23:59). YE1 <-- Root YE #2: ok > 40 days (2032-09-02 23:59). Root YE <-- ISRG Root X2 #3: ok > 40 days (2032-09-02 23:59). ISRG Root X2 <-- ISRG Root X1 Intermediate Bad OCSP (exp.) Ok 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 180 days=15552000 s, includeSubDomains Public Key Pinning -- Server banner nginx/1.24.0 (Ubuntu)' Application banner -- Cookie(s) (none issued at "/") -- HTTP status 404 signals you maybe missed the web application Security headers X-Frame-Options: SAMEORIGIN X-Content-Type-Options: nosniff Content-Security-Policy: default-src 'none' Cross-Origin-Opener-Policy: same-origin Cross-Origin-Resource-Policy: same-origin Cross-Origin-Embedder-Policy: require-corp X-XSS-Protection: 0 Access-Control-Allow-Origin: * Referrer-Policy: no-referrer 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), no session ticket extension 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, "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) no RSA certificate, thus certificate can't be used with SSLv2 elsewhere 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) - ARIA, CHACHA or CCM ciphers found 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-ECDSA-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) TLSv1.2 ECDHE-ECDSA-AES128-GCM-SHA256 253 bit ECDH (X25519) Android 10.0 (native) TLSv1.2 ECDHE-ECDSA-AES128-GCM-SHA256 253 bit ECDH (X25519) Android 11/12 (native) TLSv1.2 ECDHE-ECDSA-AES128-GCM-SHA256 253 bit ECDH (X25519) Android 13/14 (native) TLSv1.2 ECDHE-ECDSA-AES128-GCM-SHA256 253 bit ECDH (X25519) Android 15 (native) TLSv1.2 ECDHE-ECDSA-AES128-GCM-SHA256 253 bit ECDH (X25519) Chrome 101 (Win 10) TLSv1.2 ECDHE-ECDSA-AES128-GCM-SHA256 253 bit ECDH (X25519) Chromium 137 (Win 11) TLSv1.2 ECDHE-ECDSA-AES128-GCM-SHA256 253 bit ECDH (X25519) Firefox 100 (Win 10) TLSv1.2 ECDHE-ECDSA-AES128-GCM-SHA256 253 bit ECDH (X25519) Firefox 137 (Win 11) TLSv1.2 ECDHE-ECDSA-AES128-GCM-SHA256 253 bit ECDH (X25519) IE 8 Win 7 No connection IE 11 Win 7 TLSv1.2 ECDHE-ECDSA-AES256-GCM-SHA384 256 bit ECDH (P-256) IE 11 Win 8.1 TLSv1.2 ECDHE-ECDSA-AES256-GCM-SHA384 256 bit ECDH (P-256) 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 TLSv1.2 ECDHE-ECDSA-AES128-GCM-SHA256 253 bit ECDH (X25519) Edge 133 Win 11 23H2 TLSv1.2 ECDHE-ECDSA-AES128-GCM-SHA256 253 bit ECDH (X25519) Safari 18.4 (iOS 18.4) TLSv1.2 ECDHE-ECDSA-AES256-GCM-SHA384 253 bit ECDH (X25519) Safari 15.4 (macOS 12.3.1) TLSv1.2 ECDHE-ECDSA-AES256-GCM-SHA384 253 bit ECDH (X25519) Safari 18.4 (macOS 15.4) TLSv1.2 ECDHE-ECDSA-AES256-GCM-SHA384 253 bit ECDH (X25519) Java 7u25 No connection Java 8u442 (OpenJDK) TLSv1.2 ECDHE-ECDSA-AES256-GCM-SHA384 253 bit ECDH (X25519) Java 11.0.2 (OpenJDK) TLSv1.2 ECDHE-ECDSA-AES256-GCM-SHA384 256 bit ECDH (P-256) Java 17.0.3 (OpenJDK) TLSv1.2 ECDHE-ECDSA-AES256-GCM-SHA384 253 bit ECDH (X25519) Java 21.0.6 (OpenJDK) TLSv1.2 ECDHE-ECDSA-AES256-GCM-SHA384 253 bit ECDH (X25519) go 1.17.8 TLSv1.2 ECDHE-ECDSA-AES128-GCM-SHA256 253 bit ECDH (X25519) LibreSSL 3.3.6 (macOS) TLSv1.2 ECDHE-ECDSA-CHACHA20-POLY1305 253 bit ECDH (X25519) OpenSSL 1.0.2e TLSv1.2 ECDHE-ECDSA-AES256-GCM-SHA384 256 bit ECDH (P-256) OpenSSL 1.1.1d (Debian) TLSv1.2 ECDHE-ECDSA-AES256-GCM-SHA384 253 bit ECDH (X25519) OpenSSL 3.0.15 (Debian) TLSv1.2 ECDHE-ECDSA-AES256-GCM-SHA384 253 bit ECDH (X25519) OpenSSL 3.5.0 (git) TLSv1.2 ECDHE-ECDSA-AES256-GCM-SHA384 253 bit ECDH (X25519) Apple Mail (16.0) TLSv1.2 ECDHE-ECDSA-AES256-GCM-SHA384 256 bit ECDH (P-256) Thunderbird (91.9) TLSv1.2 ECDHE-ECDSA-AES128-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- Grade warning TLS 1.3 is not supported Done 2026-11-04 09:16:16 [ 46s] -->> 34.62.47.252:443 (changelog-backend.shelly.cloud) <<--