Protocols
TLS 1.3	No
TLS 1.2	Yes
TLS 1.1	No
TLS 1.0	No
SSL 3	No
SSL 2	No

Cipher Suites
# TLS 1.2 (suites in server-preferred order)
TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (0xc030)   ECDH secp384r1 (eq. 7680 bits RSA)   FS	256
TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (0xc02f)   ECDH secp384r1 (eq. 7680 bits RSA)   FS	128

Handshake Simulation
Android 4.4.2	RSA 4096 (SHA256)	TLS 1.2	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384   ECDH secp384r1  FS
Android 5.0.0	RSA 4096 (SHA256)	TLS 1.2	TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp384r1  FS
Android 6.0	RSA 4096 (SHA256)	TLS 1.2 > http/1.1	TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp384r1  FS
Android 7.0	RSA 4096 (SHA256)	TLS 1.2 > h2	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384   ECDH secp384r1  FS
Android 8.0	RSA 4096 (SHA256)	TLS 1.2 > h2	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384   ECDH secp384r1  FS
Android 8.1	-	TLS 1.3	TLS_AES_256_GCM_SHA384   ECDH secp384r1  FS
Android 9.0	-	TLS 1.3	TLS_AES_256_GCM_SHA384   ECDH secp384r1  FS
BingPreview Jan 2015	RSA 4096 (SHA256)	TLS 1.2	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384   ECDH secp384r1  FS
Chrome 49 / XP SP3	RSA 4096 (SHA256)	TLS 1.2 > h2	TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp384r1  FS
Chrome 69 / Win 7  R	RSA 4096 (SHA256)	TLS 1.2 > h2	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384   ECDH secp384r1  FS
Chrome 70 / Win 10	-	TLS 1.3	TLS_AES_256_GCM_SHA384   ECDH secp384r1  FS
Chrome 80 / Win 10  R	-	TLS 1.3	TLS_AES_256_GCM_SHA384   ECDH secp384r1  FS
Firefox 31.3.0 ESR / Win 7	RSA 4096 (SHA256)	TLS 1.2	TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp384r1  FS
Firefox 47 / Win 7  R	RSA 4096 (SHA256)	TLS 1.2 > h2	TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp384r1  FS
Firefox 49 / XP SP3	RSA 4096 (SHA256)	TLS 1.2 > h2	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384   ECDH secp384r1  FS
Firefox 62 / Win 7  R	RSA 4096 (SHA256)	TLS 1.2 > h2	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384   ECDH secp384r1  FS
Firefox 73 / Win 10  R	-	TLS 1.3	TLS_AES_256_GCM_SHA384   FFDH ffdhe3072  FS
Googlebot Feb 2018	RSA 4096 (SHA256)	TLS 1.2	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384   ECDH secp384r1  FS
IE 11 / Win 7  R	Server sent fatal alert: handshake_failure
IE 11 / Win 8.1  R	Server sent fatal alert: handshake_failure
IE 11 / Win Phone 8.1  R	Server sent fatal alert: handshake_failure
IE 11 / Win Phone 8.1 Update  R	Server sent fatal alert: handshake_failure
IE 11 / Win 10  R	RSA 4096 (SHA256)	TLS 1.2 > h2	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384   ECDH secp384r1  FS
Edge 15 / Win 10  R	RSA 4096 (SHA256)	TLS 1.2 > h2	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384   ECDH secp384r1  FS
Edge 16 / Win 10  R	RSA 4096 (SHA256)	TLS 1.2 > h2	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384   ECDH secp384r1  FS
Edge 18 / Win 10  R	RSA 4096 (SHA256)	TLS 1.2 > h2	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384   ECDH secp384r1  FS
Edge 13 / Win Phone 10  R	RSA 4096 (SHA256)	TLS 1.2 > h2	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384   ECDH secp384r1  FS
Java 8u161	RSA 4096 (SHA256)	TLS 1.2	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384   ECDH secp384r1  FS
Java 11.0.3	Server closed connection
Java 12.0.1	Server closed connection
OpenSSL 1.0.1l  R	RSA 4096 (SHA256)	TLS 1.2	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384   ECDH secp384r1  FS
OpenSSL 1.0.2s  R	RSA 4096 (SHA256)	TLS 1.2	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384   ECDH secp384r1  FS
OpenSSL 1.1.0k  R	RSA 4096 (SHA256)	TLS 1.2	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384   ECDH secp384r1  FS
OpenSSL 1.1.1c  R	-	TLS 1.3	TLS_AES_256_GCM_SHA384   ECDH secp384r1  FS
Safari 6 / iOS 6.0.1	Server sent fatal alert: handshake_failure
Safari 7 / iOS 7.1  R	Server sent fatal alert: handshake_failure
Safari 7 / OS X 10.9  R	Server sent fatal alert: handshake_failure
Safari 8 / iOS 8.4  R	Server sent fatal alert: handshake_failure
Safari 8 / OS X 10.10  R	Server sent fatal alert: handshake_failure
Safari 9 / iOS 9  R	RSA 4096 (SHA256)	TLS 1.2 > h2	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384   ECDH secp384r1  FS
Safari 9 / OS X 10.11  R	RSA 4096 (SHA256)	TLS 1.2 > h2	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384   ECDH secp384r1  FS
Safari 10 / iOS 10  R	RSA 4096 (SHA256)	TLS 1.2 > h2	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384   ECDH secp384r1  FS
Safari 10 / OS X 10.12  R	RSA 4096 (SHA256)	TLS 1.2 > h2	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384   ECDH secp384r1  FS
Safari 12.1.2 / MacOS 10.14.6 Beta  R	-	TLS 1.3	TLS_AES_256_GCM_SHA384   ECDH secp384r1  FS
Safari 12.1.1 / iOS 12.3.1  R	-	TLS 1.3	TLS_AES_256_GCM_SHA384   ECDH secp384r1  FS
Apple ATS 9 / iOS 9  R	RSA 4096 (SHA256)	TLS 1.2 > h2	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384   ECDH secp384r1  FS
Yahoo Slurp Jan 2015	RSA 4096 (SHA256)	TLS 1.2	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384   ECDH secp384r1  FS
YandexBot Jan 2015	RSA 4096 (SHA256)	TLS 1.2	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384   ECDH secp384r1  FS
# Not simulated clients (Protocol mismatch)
Android 2.3.7   No SNI 2	Protocol mismatch (not simulated)
Android 4.0.4	Protocol mismatch (not simulated)
Android 4.1.1	Protocol mismatch (not simulated)
Android 4.2.2	Protocol mismatch (not simulated)
Android 4.3	Protocol mismatch (not simulated)
Baidu Jan 2015	Protocol mismatch (not simulated)
IE 6 / XP   No FS 1   No SNI 2	Protocol mismatch (not simulated)
IE 7 / Vista	Protocol mismatch (not simulated)
IE 8 / XP   No FS 1   No SNI 2	Protocol mismatch (not simulated)
IE 8-10 / Win 7  R	Protocol mismatch (not simulated)
IE 10 / Win Phone 8.0	Protocol mismatch (not simulated)
Java 6u45   No SNI 2	Protocol mismatch (not simulated)
Java 7u25	Protocol mismatch (not simulated)
OpenSSL 0.9.8y	Protocol mismatch (not simulated)
Safari 5.1.9 / OS X 10.6.8	Protocol mismatch (not simulated)
Safari 6.0.4 / OS X 10.8.4  R	Protocol mismatch (not simulated)
Click here to expand
(1) Clients that do not support Forward Secrecy (FS) are excluded when determining support for it.
(2) No support for virtual SSL hosting (SNI). Connects to the default site if the server uses SNI.
(3) Only first connection attempt simulated. Browsers sometimes retry with a lower protocol version.
(R) Denotes a reference browser or client, with which we expect better effective security.
(All) We use defaults, but some platforms do not use their best protocols and features (e.g., Java 6 & 7, older IE).
(All) Certificate trust is not checked in handshake simulation, we only perform TLS handshake.

Protocol Details
Secure Renegotiation	Supported
Secure Client-Initiated Renegotiation	No
Insecure Client-Initiated Renegotiation	No
BEAST attack	Mitigated server-side (more info)
POODLE (SSLv3)	No, SSL 3 not supported (more info)
POODLE (TLS)	No (more info)
Zombie POODLE	No (more info)
GOLDENDOODLE	No (more info)
OpenSSL 0-Length	No (more info)
Sleeping POODLE	No (more info)
Downgrade attack prevention	Unknown (requires support for at least two protocols, excl. SSL2)
SSL/TLS compression	No
RC4	No
Heartbeat (extension)	No
Heartbleed (vulnerability)	No (more info)
Ticketbleed (vulnerability)	No (more info)
OpenSSL CCS vuln. (CVE-2014-0224)	No (more info)
OpenSSL Padding Oracle vuln. (CVE-2016-2107)	No (more info)
ROBOT (vulnerability)	No (more info)
Forward Secrecy	Yes (with most browsers)   ROBUST (more info)
ALPN	Yes   h2 http/1.1
NPN	No
Session resumption (caching)	Yes
Session resumption (tickets)	No
OCSP stapling	Yes
Strict Transport Security (HSTS)	Yes max-age=16070400; includeSubDomains
HSTS Preloading	Not in: Chrome  Edge  Firefox  IE
Public Key Pinning (HPKP)	No (more info)
Public Key Pinning Report-Only	No
Public Key Pinning (Static)	No (more info)
Long handshake intolerance	No
TLS extension intolerance	No
TLS version intolerance	No
Incorrect SNI alerts	No
Uses common DH primes	No, DHE suites not supported
DH public server param (Ys) reuse	No, DHE suites not supported
ECDH public server param reuse	No
Supported Named Groups	secp384r1, secp256r1, x25519 (server preferred order)
SSL 2 handshake compatibility	Yes

HTTP Requests

1 https://www.huk.de/  (HTTP/1.1 200 OK)
1
	Date	Sun, 11 Jan 2026 20:09:13 GMT
	content-type	text/html; charset=UTF-8
	content-language	de-DE
	X-Global-Transaction-ID	37f9b2d269640369ed04c9e1
	set-cookie	c85a34a83a560014b9f8b0bd4c023661=3d9d3bd8c0da01f12ccf0e09378aa39b; path=/; HttpOnly; Secure; SameSite=None
	Vary	Accept-Encoding
	X-Frame-Options	SAMEORIGIN
	Content-Security-Policy	frame-ancestors 'self';
	Link	<https://static.c.huk.de/>; rel=preconnect
	Server-Timing	dtSInfo;desc="0", dtRpid;desc="-786607572"
	Set-Cookie	dtCookie=v_4_srv_30_sn_C1BC94C5A7717CB59ED537BC0990D283_perc_100000_ol_0_mul_1_app-3A21540f02a06cf725_1; Path=/; Domain=.huk.de
	Connection	close
	Set-Cookie	consent_technical=ALLOW; Path=/; Domain=.huk.de
	Set-Cookie	consent_functional=DENY; Path=/; Domain=.huk.de
	Set-Cookie	consent_marketing=DENY; Path=/; Domain=.huk.de
	Strict-Transport-Security	max-age=16070400; includeSubDomains
	Set-Cookie	TS016d7452=0169d7b97cf77cc4da4e16e341f5cf4d7f2e5eb976f0922ab49ecfbe73260ed0cbdbc699daf1da2fd8e03a8637ac227dd939d8644a; Path=/
	Set-Cookie	TS018a1201=0169d7b97cf77cc4da4e16e341f5cf4d7f2e5eb976f0922ab49ecfbe73260ed0cbdbc699daf1da2fd8e03a8637ac227dd939d8644a; path=/; domain=.huk.de
	Transfer-Encoding	chunked

Miscellaneous
Test date	Sun, 11 Jan 2026 20:08:58 UTC
Test duration	67.593 seconds
HTTP status code	200
HTTP server signature	-
Server hostname	-