Smlouvy Dotace Platy Úřady Zakázky Sponzoři & firmy PastVina 
❤ Podpořte nás Přihlásit se Registrace

Hlídač Český telekomunikační úřad Detailní analýza HTTPs pro Český telekomunikační úřad

Český telekomunikační úřad
http://www.ctu.cz

Český telekomunikační úřad Zpřístupňuje na jednom místě formuláře pro podání ve vybraných agendách ČTÚ.


Zabezpečení komunikace

A+
Certifikát expiruje za 29 dní.

Výsledek analýzy HTTPS na www.ctu.cz ze dne 19.06.2026

Všechno je v nejlepším pořádku a web se drží doporučených postupů.


Detailní analýza

Detailní report z HTTPs analýzy pomocí nástroje testssl.sh

server www.ctu.cz/185.178.175.96
pre_128cipher INFO {
No 128 cipher limit bug
}
SSLv2 OK {
not offered
}
SSLv3 OK {
not offered
}
TLS1 INFO {
not offered
}
TLS1_1 INFO {
not offered
}
TLS1_2 OK {
offered
}
TLS1_3 OK {
offered with final
}
NPN INFO {
not offered
}
ALPN_HTTP2 OK {
h2
}
ALPN INFO {
http/1.1
}
cipherlist_NULL
zranitelnosti: CWE-327
OK {
not offered
}
cipherlist_aNULL
zranitelnosti: CWE-327
OK {
not offered
}
cipherlist_EXPORT
zranitelnosti: CWE-327
OK {
not offered
}
cipherlist_LOW
zranitelnosti: CWE-327
OK {
not offered
}
cipherlist_3DES_IDEA
zranitelnosti: CWE-310
INFO {
not offered
}
cipherlist_AVERAGE
zranitelnosti: CWE-310
INFO {
not offered
}
cipherlist_GOOD INFO {
not offered
}
cipherlist_STRONG OK {
offered
}
cipher_order OK {
server
}
protocol_negotiated OK {
Default protocol TLS1.3
}
cipher_negotiated OK {
TLS_AES_256_GCM_SHA384, 253 bit ECDH (X25519)
}
cipher-tls1_2_xc030 OK {
TLSv1.2   xc030   ECDHE-RSA-AES256-GCM-SHA384       ECDH 253   AESGCM      256      TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
}
cipher-tls1_2_xcca8 OK {
TLSv1.2   xcca8   ECDHE-RSA-CHACHA20-POLY1305       ECDH 253   ChaCha20    256      TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256
}
cipher-tls1_2_xc061 OK {
TLSv1.2   xc061   ECDHE-ARIA256-GCM-SHA384          ECDH 253   ARIAGCM     256      TLS_ECDHE_RSA_WITH_ARIA_256_GCM_SHA384
}
cipher-tls1_2_xc02f OK {
TLSv1.2   xc02f   ECDHE-RSA-AES128-GCM-SHA256       ECDH 253   AESGCM      128      TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
}
cipher-tls1_2_xc060 OK {
TLSv1.2   xc060   ECDHE-ARIA128-GCM-SHA256          ECDH 253   ARIAGCM     128      TLS_ECDHE_RSA_WITH_ARIA_128_GCM_SHA256
}
cipherorder_TLSv1_2 INFO {
ECDHE-RSA-AES256-GCM-SHA384 ECDHE-RSA-CHACHA20-POLY1305 ECDHE-ARIA256-GCM-SHA384 ECDHE-RSA-AES128-GCM-SHA256 ECDHE-ARIA128-GCM-SHA256
}
prioritize_chacha_TLSv1_2 INFO {
false
}
cipher-tls1_3_x1302 OK {
TLSv1.3   x1302   TLS_AES_256_GCM_SHA384            ECDH 253   AESGCM      256      TLS_AES_256_GCM_SHA384
}
cipher-tls1_3_x1303 OK {
TLSv1.3   x1303   TLS_CHACHA20_POLY1305_SHA256      ECDH 253   ChaCha20    256      TLS_CHACHA20_POLY1305_SHA256
}
cipher-tls1_3_x1301 OK {
TLSv1.3   x1301   TLS_AES_128_GCM_SHA256            ECDH 253   AESGCM      128      TLS_AES_128_GCM_SHA256
}
cipherorder_TLSv1_3 INFO {
TLS_AES_256_GCM_SHA384 TLS_CHACHA20_POLY1305_SHA256 TLS_AES_128_GCM_SHA256
}
prioritize_chacha_TLSv1_3 INFO {
false
}
FS OK {
offered
}
FS_ciphers INFO {
TLS_AES_256_GCM_SHA384 TLS_CHACHA20_POLY1305_SHA256 ECDHE-RSA-AES256-GCM-SHA384 ECDHE-RSA-CHACHA20-POLY1305 ECDHE-ARIA256-GCM-SHA384 TLS_AES_128_GCM_SHA256 ECDHE-RSA-AES128-GCM-SHA256 ECDHE-ARIA128-GCM-SHA256
}
FS_ECDHE_curves OK {
prime256v1 secp384r1 secp521r1 X25519 X448
}
TLS_extensions INFO {
'renegotiation info/#65281' 'server name/#0' 'EC point formats/#11' 'session ticket/#35' 'supported versions/#43' 'key share/#51' 'supported_groups/#10' 'max fragment length/#1' 'application layer protocol negotiation/#16' 'extended master secret/#23'
}
TLS_session_ticket INFO {
valid for 300 seconds only (<daily)
}
SSL_sessionID_support INFO {
yes
}
sessionresumption_ticket INFO {
supported
}
sessionresumption_ID INFO {
supported
}
TLS_timestamp INFO {
random
}
certificate_compression INFO {
none
}
clientAuth INFO {
none
}
cert_numbers INFO {
1
}
cert_signatureAlgorithm OK {
SHA256 with RSA
}
cert_keySize INFO {
RSA 2048 bits (exponent is 65537)
}
cert_keyUsage INFO {
Digital Signature, Key Encipherment
}
cert_extKeyUsage INFO {
TLS Web Server Authentication
}
cert_serialNumber INFO {
059FD8CD84A87D6D0D26A99FB32A3DBA77AE
}
cert_serialNumberLen INFO {
18
}
cert_fingerprintSHA1 INFO {
4FF557451976C18445575BE385428368FF2967F2
}
cert_fingerprintSHA256 INFO {
24E10A1F65630B0DDA34F6440A3D4DB6F5833EA5D2ECE977511EC22E95AAEF01
}
cert INFO {
-----BEGIN CERTIFICATE----- MIIFJjCCBA6gAwIBAgISBZ/YzYSofW0NJqmfsyo9uneuMA0GCSqGSIb3DQEBCwUA MDMxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQwwCgYDVQQD EwNSMTMwHhcNMjYwNDIwMTI1OTQ5WhcNMjYwNzE5MTI1OTQ4WjAVMRMwEQYDVQQD EwpjdHUuZ292LmN6MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA9qvT ++kGwK2RQZ/ZDNP8ZfL+vQ0zYcQ6dZ5a2Du4OdpjMX+xnzoz8G5/J7qmlGJu00ov N7yA2Q6VOwufZwV5XUL/oZjVQ/HMG5kuF1tKPn+j0qjOr11rapIu6upy9l0b6P2L 15L0HbOStf3cWhanueAutGRCiZtE1/zzKXQeH6HTaIavw6nC4/dzBg/DZhsotAD3 vdQCi6n8V70By49Xl5ze9fHWHm0xm66QY3cxnyQd+owv229PCfIXRhus7361aA9K Wj3Y4aKnCSwCpuD+2Ix4BJPMsvb+aydp5931JO3Ae67p7rugHU9PV1XiAn5sVtYQ KgJElqJU8pUZVDhYaQIDAQABo4ICUDCCAkwwDgYDVR0PAQH/BAQDAgWgMBMGA1Ud JQQMMAoGCCsGAQUFBwMBMAwGA1UdEwEB/wQCMAAwHQYDVR0OBBYEFPEWHtejS49R UKzZIYpySWLNvZ8YMB8GA1UdIwQYMBaAFOernw8sM6BT015PeMiyhA471pIzMDMG CCsGAQUFBwEBBCcwJTAjBggrBgEFBQcwAoYXaHR0cDovL3IxMy5pLmxlbmNyLm9y Zy8wTQYDVR0RBEYwRIIGY3R1LmN6ggZjdHUuZXWCCmN0dS5nb3YuY3qCCnd3dy5j dHUuY3qCCnd3dy5jdHUuZXWCDnd3dy5jdHUuZ292LmN6MBMGA1UdIAQMMAowCAYG Z4EMAQIBMC4GA1UdHwQnMCUwI6AhoB+GHWh0dHA6Ly9yMTMuYy5sZW5jci5vcmcv NDcuY3JsMIIBDAYKKwYBBAHWeQIEAgSB/QSB+gD4AHYAyKPEf8ezrbk1awE/anoS beM6TkOlxkb5l605dZkdz5oAAAGdqy9W4gAABAMARzBFAiEA4nTSwIbU7EUz6WCl be01sfwjfqSfgDd4srIXSMGW2GUCIFa8IAZd08EAJk+cJirFTNbZm4/ymy9pjAht 7jhWU/zKAH4AqCbL4wrGNRJGUz/gZfFPGdluGQgTxB3ZbXkAsxI8VScAAAGdqy9a UgAIAAAFAAedhKUEAwBHMEUCIBtLcakeJyo4fwO4Dtwr/K57otIgFvfKOP7SIb8+ M8R+AiEAgEjXT8FWIgnzkJ6OQ3388r58fq1G6XHRn2uDwPwuUv4wDQYJKoZIhvcN AQELBQADggEBACh7Op4xOA8wpQ/FfGWOkO3reClnkI+KRY0GqLFE792n9D0ilHDL A1ifSKPzA/m0bG6Wl2lkgzEora8JHZLdl/yJ5hDYNcxyFmQBUtzD9nnInOCtU0RJ OUvE+GgxeGhkl4gsLJKklv2YR8bDhNfmJzPALXMZANLBIOVflehSt29ODq54CqSe W6MuUF//QhBL4B7+/0cRkeGWf6YTLgythXD7nUEUx40yHSQ8ZQF2BduzYUMyf37O zcSn9eE1qw+iOpwtZYYuDS56+k/SCjfwqsDk016Jp2O4FsOscRrxHLiA1avfxVNW 14dQpqrWAG+tcpQgPwxZ1LD5lYOPWerDlio= -----END CERTIFICATE-----
}
cert_commonName OK {
ctu.gov.cz
}
cert_commonName_wo_SNI INFO {
voatt-ctu2.zcom.cz
}
cert_subjectAltName INFO {
ctu.cz ctu.eu ctu.gov.cz www.ctu.cz www.ctu.eu www.ctu.gov.cz
}
cert_trust OK {
Ok via SAN (SNI mandatory)
}
cert_chain_of_trust OK {
passed.
}
cert_certificatePolicies_EV INFO {
no
}
cert_expirationStatus MEDIUM {
expires < 30 days (29)
}
cert_notBefore INFO {
2026-04-20 12:59
}
cert_notAfter MEDIUM {
2026-07-19 12:59
}
cert_extlifeSpan OK {
certificate has no extended life time according to browser forum
}
cert_eTLS INFO {
not present
}
cert_crlDistributionPoints INFO {
http://r13.c.lencr.org/47.crl
}
cert_ocspURL INFO {
--
}
OCSP_stapling INFO {
not offered
}
cert_mustStapleExtension INFO {
--
}
DNS_CAArecord LOW {
--
}
certificate_transparency OK {
yes (certificate extension)
}
certs_countServer INFO {
2
}
certs_list_ordering_problem INFO {
no
}
cert_caIssuers INFO {
R13 (Let's Encrypt from US)
}
intermediate_cert <#1> INFO {
-----BEGIN CERTIFICATE----- MIIFBTCCAu2gAwIBAgIQWgDyEtjUtIDzkkFX6imDBTANBgkqhkiG9w0BAQsFADBP MQswCQYDVQQGEwJVUzEpMCcGA1UEChMgSW50ZXJuZXQgU2VjdXJpdHkgUmVzZWFy Y2ggR3JvdXAxFTATBgNVBAMTDElTUkcgUm9vdCBYMTAeFw0yNDAzMTMwMDAwMDBa Fw0yNzAzMTIyMzU5NTlaMDMxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBF bmNyeXB0MQwwCgYDVQQDEwNSMTMwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEK AoIBAQClZ3CN0FaBZBUXYc25BtStGZCMJlA3mBZjklTb2cyEBZPs0+wIG6BgUUNI fSvHSJaetC3ancgnO1ehn6vw1g7UDjDKb5ux0daknTI+WE41b0VYaHEX/D7YXYKg L7JRbLAaXbhZzjVlyIuhrxA3/+OcXcJJFzT/jCuLjfC8cSyTDB0FxLrHzarJXnzR yQH3nAP2/Apd9Np75tt2QnDr9E0i2gB3b9bJXxf92nUupVcM9upctuBzpWjPoXTi dYJ+EJ/B9aLrAek4sQpEzNPCifVJNYIKNLMc6YjCR06CDgo28EdPivEpBHXazeGa XP9enZiVuppD0EqiFwUBBDDTMrOPAgMBAAGjgfgwgfUwDgYDVR0PAQH/BAQDAgGG MB0GA1UdJQQWMBQGCCsGAQUFBwMCBggrBgEFBQcDATASBgNVHRMBAf8ECDAGAQH/ AgEAMB0GA1UdDgQWBBTnq58PLDOgU9NeT3jIsoQOO9aSMzAfBgNVHSMEGDAWgBR5 tFnme7bl5AFzgAiIyBpY9umbbjAyBggrBgEFBQcBAQQmMCQwIgYIKwYBBQUHMAKG Fmh0dHA6Ly94MS5pLmxlbmNyLm9yZy8wEwYDVR0gBAwwCjAIBgZngQwBAgEwJwYD VR0fBCAwHjAcoBqgGIYWaHR0cDovL3gxLmMubGVuY3Iub3JnLzANBgkqhkiG9w0B AQsFAAOCAgEAUTdYUqEimzW7TbrOypLqCfL7VOwYf/Q79OH5cHLCZeggfQhDconl k7Kgh8b0vi+/XuWu7CN8n/UPeg1vo3G+taXirrytthQinAHGwc/UdbOygJa9zuBc VyqoH3CXTXDInT+8a+c3aEVMJ2St+pSn4ed+WkDp8ijsijvEyFwE47hulW0Ltzjg 9fOV5Pmrg/zxWbRuL+k0DBDHEJennCsAen7c35Pmx7jpmJ/HtgRhcnz0yjSBvyIw 6L1QIupkCv2SBODT/xDD3gfQQyKv6roV4G2EhfEyAsWpmojxjCUCGiyg97FvDtm/ NK2LSc9lybKxB73I2+P2G3CaWpvvpAiHCVu30jW8GCxKdfhsXtnIy2imskQqVZ2m 0Pmxobb28Tucr7xBK7CtwvPrb79os7u2XP3O5f9b/H66GNyRrglRXlrYjI1oGYL/ f4I1n/Sgusda6WvA6C190kxjU15Y12mHU4+BxyR9cx2hhGS9fAjMZKJss28qxvz6 Axu4CaDmRNZpK/pQrXF17yXCXkmEWgvSOEZy6Z9pcbLIVEGckV/iVeq0AOo2pkg9 p4QRIy0tK2diRENLSF2KysFwbY6B26BFeFs3v1sYVRhFW9nLkOrQVporCS0KyZmf wVD89qSTlnctLcZnIavjKsKUu1nA1iU0yYMdYepKR7lWbnwhdx3ewok= -----END CERTIFICATE-----
}
intermediate_cert_fingerprintSHA256 <#1> INFO {
D3B128216A843F8EF1321501F5DF52A5DF52939EE2C19297712CD3DE4D419354
}
intermediate_cert_notBefore <#1> INFO {
2024-03-13 00:00
}
intermediate_cert_notAfter <#1> OK {
2027-03-12 23:59
}
intermediate_cert_expiration <#1> OK {
ok > 40 days
}
intermediate_cert_chain <#1> INFO {
R13 <-- ISRG Root X1
}
intermediate_cert_badOCSP OK {
intermediate certificate(s) is/are ok
}
HTTP_status_code INFO {
301 Moved Permanently ('/')
}
HTTP_clock_skew INFO {
0 seconds from localtime
}
HTTP_headerTime INFO {
1781899406
}
HSTS_time OK {
730 days (=63072000 seconds) > 15552000 seconds
}
HSTS_subdomains OK {
includes subdomains
}
HSTS_preload OK {
domain IS marked for preloading
}
HPKP INFO {
No support for HTTP Public Key Pinning
}
banner_server INFO {
Apache
}
banner_application INFO {
No application banner found
}
cookie_count INFO {
0 at '/' (30x detected, better try target URL of 30x)
}
X-Frame-Options OK {
SAMEORIGIN
}
X-XSS-Protection INFO {
1; mode=block
}
Cache-Control INFO {
max-age=1209600
}
banner_reverseproxy
zranitelnosti: CWE-200
INFO {
--
}
heartbleed
zranitelnosti: CVE-2014-0160 CWE-119
OK {
not vulnerable, no heartbeat extension
}
CCS
zranitelnosti: CVE-2014-0224 CWE-310
OK {
not vulnerable
}
ticketbleed
zranitelnosti: CVE-2016-9244 CWE-200
OK {
not vulnerable
}
ROBOT OK {
not vulnerable, no RSA key transport cipher
}
secure_renego
zranitelnosti: CWE-310
OK {
supported
}
secure_client_renego
zranitelnosti: CVE-2011-1473 CWE-310
OK {
not vulnerable
}
CRIME_TLS
zranitelnosti: CVE-2012-4929 CWE-310
OK {
not vulnerable
}
BREACH
zranitelnosti: CVE-2013-3587 CWE-310
OK {
not vulnerable, no gzip/deflate/compress/br HTTP compression  - only supplied '/' tested
}
POODLE_SSL
zranitelnosti: CVE-2014-3566 CWE-310
OK {
not vulnerable, no SSLv3
}
fallback_SCSV OK {
no protocol below TLS 1.2 offered
}
SWEET32 OK {
not vulnerable
}
FREAK
zranitelnosti: CVE-2015-0204 CWE-310
OK {
not vulnerable
}
DROWN OK {
not vulnerable on this host and port
}
DROWN_hint INFO {
Make sure you don't use this certificate elsewhere with SSLv2 enabled services, see https://censys.io/ipv4?q=24E10A1F65630B0DDA34F6440A3D4DB6F5833EA5D2ECE977511EC22E95AAEF01
}
LOGJAM
zranitelnosti: CVE-2015-4000 CWE-310
OK {
not vulnerable, no DH EXPORT ciphers,
}
LOGJAM-common_primes
zranitelnosti: CVE-2015-4000 CWE-310
OK {
no DH key with <= TLS 1.2
}
BEAST
zranitelnosti: CVE-2011-3389 CWE-20
OK {
not vulnerable, no SSL3 or TLS1
}
LUCKY13
zranitelnosti: CVE-2013-0169 CWE-310
OK {
not vulnerable
}
winshock
zranitelnosti: CVE-2014-6321 CWE-94
OK {
not vulnerable
}
RC4 OK {
not vulnerable
}
clientsimulation-android_442 INFO {
TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384
}
clientsimulation-android_500 INFO {
TLSv1.2 ECDHE-RSA-AES128-GCM-SHA256
}
clientsimulation-android_60 INFO {
TLSv1.2 ECDHE-RSA-AES128-GCM-SHA256
}
clientsimulation-android_70 INFO {
TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384
}
clientsimulation-android_81 INFO {
TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384
}
clientsimulation-android_90 INFO {
TLSv1.3 TLS_AES_256_GCM_SHA384
}
clientsimulation-android_X INFO {
TLSv1.3 TLS_AES_256_GCM_SHA384
}
clientsimulation-chrome_74_win10 INFO {
TLSv1.3 TLS_AES_256_GCM_SHA384
}
clientsimulation-chrome_79_win10 INFO {
TLSv1.3 TLS_AES_256_GCM_SHA384
}
clientsimulation-firefox_66_win81 INFO {
TLSv1.3 TLS_AES_256_GCM_SHA384
}
clientsimulation-firefox_71_win10 INFO {
TLSv1.3 TLS_AES_256_GCM_SHA384
}
clientsimulation-ie_6_xp INFO {
No connection
}
clientsimulation-ie_8_win7 INFO {
No connection
}
clientsimulation-ie_8_xp INFO {
No connection
}
clientsimulation-ie_11_win7 INFO {
No connection
}
clientsimulation-ie_11_win81 INFO {
No connection
}
clientsimulation-ie_11_winphone81 INFO {
No connection
}
clientsimulation-ie_11_win10 INFO {
TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384
}
clientsimulation-edge_15_win10 INFO {
TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384
}
clientsimulation-edge_17_win10 INFO {
TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384
}
clientsimulation-opera_66_win10 INFO {
TLSv1.3 TLS_AES_256_GCM_SHA384
}
clientsimulation-safari_9_ios9 INFO {
TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384
}
clientsimulation-safari_9_osx1011 INFO {
TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384
}
clientsimulation-safari_10_osx1012 INFO {
TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384
}
clientsimulation-safari_121_ios_122 INFO {
TLSv1.3 TLS_AES_256_GCM_SHA384
}
clientsimulation-safari_130_osx_10146 INFO {
TLSv1.3 TLS_AES_256_GCM_SHA384
}
clientsimulation-apple_ats_9_ios9 INFO {
TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384
}
clientsimulation-java_6u45 INFO {
No connection
}
clientsimulation-java_7u25 INFO {
No connection
}
clientsimulation-java_8u161 INFO {
TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384
}
clientsimulation-java1102 INFO {
TLSv1.3 TLS_AES_256_GCM_SHA384
}
clientsimulation-java1201 INFO {
TLSv1.3 TLS_AES_256_GCM_SHA384
}
clientsimulation-openssl_102e INFO {
TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384
}
clientsimulation-openssl_110l INFO {
TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384
}
clientsimulation-openssl_111d INFO {
TLSv1.3 TLS_AES_256_GCM_SHA384
}
clientsimulation-thunderbird_68_3_1 INFO {
TLSv1.3 TLS_AES_256_GCM_SHA384
}
rating_spec INFO {
SSL Labs's 'SSL Server Rating Guide' (version 2009q from 2020-01-30)
}
rating_doc INFO {
https://github.com/ssllabs/research/wiki/SSL-Server-Rating-Guide
}
protocol_support_score INFO {
100
}
protocol_support_score_weighted INFO {
30
}
key_exchange_score INFO {
90
}
key_exchange_score_weighted INFO {
27
}
cipher_strength_score INFO {
90
}
cipher_strength_score_weighted INFO {
36
}
final_score INFO {
93
}
overall_grade OK {
A+
}
scanTime INFO {
143
}