www.snsu.cz
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 04:c1:d0:09:ae:e9:73:06:95:59:84:20:31:e3:87:40:0b:15 was issued on by Let's Encrypt.
With 2 subject alternative names this certificate can be used to secure multiple fqdn's. This certificate has already expired and will cause a warning or error message in the browser it's still listed on this site to allow you to look back on previously issued certificates. If we have found any compliance issues with this certificate they will be shown below. I hope this certificate review is providing you the detailed information in a simple form you where looking for.
We have idenified some issues with this certificate:
- Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)
Certificate Subject
CN=www.snsu.cz
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 04:c1:d0:09:ae:e9:73:06:95:59:84:20:31:e3:87:40:0b:15Serial Number (int): 414400170244212130986122049518865894869781
Serial Number lenght: 139 bits, 18 octets
SubjectKeyId: f7:05:97:9c:4e:61:8e:eb:24:5d:a9:18:50:c4:f6:fe:68:0a:28:00
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 42:cd:fe:0c:9e:7d:fb:35:47:33:c7:47:72:1b:cc:3c:45:a7:17:b1
Fingerprint (sha256): b7:91:48:29:03:01:2d:67:6d:12:18:0c:b8:84:36:4d:64:7f:a1:dc:25:17:c4:b4:b0:0a:48:78:5b:da:b9:88
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate www.snsu.cz
2
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for www.snsu.cz
Public Key Algorithm
RSA
Key Size
2048
Signature Algorithm
SHA256 with RSA
Key Usage
Digital Signature
Key Encipherment
Extended Key Usages
Server Authentication
Client Authentication
Extensions
9 extensions
No
unhandled critical extensions
CA Certificate
This is not a CA certificate
Subject Alternative Names
snsu.cz
www.snsu.cz
www.snsu.cz
Other certificates including the domain name snsu.cz
(limited to 100 certificates)
Certificate
The complete raw certificate details for www.snsu.cz in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFVTCCBD2gAwIBAgISBMHQCa7pcwaVWYQgMeOHQAsVMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTEyMTgyMzU5NDBaFw0y MDAzMTcyMzU5NDBaMBYxFDASBgNVBAMTC3d3dy5zbnN1LmN6MIIBIjANBgkqhkiG 9w0BAQEFAAOCAQ8AMIIBCgKCAQEAvySHjvMrAxuF0xtrLfk8Gq1RVGzvGyt4YaCG cCm2eofleAPKI5xtkiIxSacqE1EsN9XYE5wnC2QRLAVolTAAeLKFg4cGEAaRthy1 bEjliL/fPM7fr1k4a8ifLiiQmVPkrW6p4nHX557oS3QoUt73wNXh0MxB0Wpr9Z98 fwCVlTPtf8NjeWPZ3cVCQjlXjZ/U0BV/vJvf1SQ37QVeSLgtUAmXOCvf+aylwD1x sDM4UWWNcj6lwSKSmEc4iCNzOU8lZaFgUsYcIS93dS3BaPwwsNgWKYmvQinZmTvC x83hfOMifuUvJnfv/WUctbAxXlx62JjwEA8swUA7d28i34NMxwIDAQABo4ICZzCC AmMwDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQWMBQGCCsGAQUFBwMBBggrBgEFBQcD AjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQWBBT3BZecTmGO6yRdqRhQxPb+aAooADAf BgNVHSMEGDAWgBSoSmpjBH3duubRObemRWXv86jsoTBvBggrBgEFBQcBAQRjMGEw LgYIKwYBBQUHMAGGImh0dHA6Ly9vY3NwLmludC14My5sZXRzZW5jcnlwdC5vcmcw LwYIKwYBBQUHMAKGI2h0dHA6Ly9jZXJ0LmludC14My5sZXRzZW5jcnlwdC5vcmcv MB8GA1UdEQQYMBaCB3Nuc3UuY3qCC3d3dy5zbnN1LmN6MEwGA1UdIARFMEMwCAYG Z4EMAQIBMDcGCysGAQQBgt8TAQEBMCgwJgYIKwYBBQUHAgEWGmh0dHA6Ly9jcHMu bGV0c2VuY3J5cHQub3JnMIIBAgYKKwYBBAHWeQIEAgSB8wSB8ADuAHUA8JWkWfIA 0YJAEC0vk4iOrUv+HUfjmeHQNKawqKqOsnMAAAFvG6rewgAABAMARjBEAiAXqvnK /1eGUj157d9g+38IT+FbcnClkmsrBAxCR9bOIgIgeGQx4M9hG7q065RRqXgbTOp2 0RzzXTKRYUTq7kzX1uEAdQCyHgXMi6LNiiBOh2b5K7mKJSBna9r6cOeySVMt74uQ XgAAAW8bquCnAAAEAwBGMEQCIC9rDZfugglKUdL970L8xfcE4qw/5HVbUyUMi+UD 8dsTAiB+w6UVH9JfL4yjFttNpaU3TznJbw8PsKgqtKv+1SiqFjANBgkqhkiG9w0B AQsFAAOCAQEAXqd+g7zzzWUHjRIp0T3Tfz+QNZly8gxLRJMhD2wwQyV94nS6OnPO /zLzNdDc0VcUDK8bASV/C5WMCcmqEyAGAU3xX7lbgJZDGyxKCK1l5TUGRqlH4bj4 Bp+h0mVZA0eDf2rgbvwWCDoKpDnpADOj51pPejLRYPDXO4HTBEZt1RBl43MNkHbm CF0O32LM0bFAf8+DbE5mV6XlZXnDBLyZ1D7ldAJrYG+1oSwQtxWViOSJEVCGkOyB kQ82ZMQuawtRvYB/5QRflhFJZwIGBcfR+hHEd55LGwQ+D+O8M55xqcR48+mqiM5R C2UPbl2uKIBr2zkM1MGK5tiaB4jTznnkhg== -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAvySHjvMrAxuF0xtrLfk8 Gq1RVGzvGyt4YaCGcCm2eofleAPKI5xtkiIxSacqE1EsN9XYE5wnC2QRLAVolTAA eLKFg4cGEAaRthy1bEjliL/fPM7fr1k4a8ifLiiQmVPkrW6p4nHX557oS3QoUt73 wNXh0MxB0Wpr9Z98fwCVlTPtf8NjeWPZ3cVCQjlXjZ/U0BV/vJvf1SQ37QVeSLgt UAmXOCvf+aylwD1xsDM4UWWNcj6lwSKSmEc4iCNzOU8lZaFgUsYcIS93dS3BaPww sNgWKYmvQinZmTvCx83hfOMifuUvJnfv/WUctbAxXlx62JjwEA8swUA7d28i34NM xwIDAQAB -----END PUBLIC KEY-----
ASN.1 decoded
[c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . [c:2|t:0|true] OtherName . . . . . . . . . . . . [c:0|t:2|false] INTEGER 2 . . . . . . . . [c:0|t:2|false] INTEGER 414400170244212130986122049518865894869781 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11 (sha256WithRSAEncryption) . . . . . . . . . . . . [c:0|t:5|false] NULL . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.6 (countryName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'US' . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.10 (organizationName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Let's Encrypt' . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.3 (commonName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Let's Encrypt Authority X3' . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-12-18 23:59:40 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-03-17 23:59:40 +0000 UTC . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.3 (commonName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'www.snsu.cz' . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.1 (rsaEncryption) . . . . . . . . . . . . . . . . [c:0|t:5|false] NULL . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (2160 bits) . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 24129529628658619143557122467248141924735049212825809943874912002163687365195289591066199954469387109199233421492614055742395399795298680067360155389064830516409766545479356508801574528914946404272768341221913424818039658073446751001638605808883858504800018608943522282383845391542834371822468022074888133652380040711992080082265636555373712266633162559629620392993940938428146624437180175942695343152609613224546765871967118773756023025986354210791568701201365586649016498018794747803556820762317166835824299873915475622447267822601237051207422906376166944220566156397069157846415481292417113192484407927672097950919 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 65537 . . . . . . . . [c:2|t:3|true] ORAddress . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.15 (keyUsage) . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN true . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (4 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (3 bits) 05a0 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.37 (extKeyUsage) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.1 (serverAuth) . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.2 (clientAuth) . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.19 (basicConstraints) . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN true . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (2 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.14 (subjectKeyIdentifier) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (20 bytes) f705979c4e618eeb245da91850c4f6fe680a2800 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.35 (authorityKeyIdentifier) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (24 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|false] OtherName a84a6a63047dddbae6d139b7a64565eff3a8eca1 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.1.1 (authorityInfoAccess) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (99 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.1 (ocsp) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://ocsp.int-x3.letsencrypt.org' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.2 (caIssuers) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://cert.int-x3.letsencrypt.org/' . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.17 (subjectAltName) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (24 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'snsu.cz' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.snsu.cz' . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.32 (certificatePolicies) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (69 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.23.140.1.2.1 (Domain Validation Certificates Policy) . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.4.1.44947.1.1.1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.2.1 (cps) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:22|false] IA5String 'http://cps.letsencrypt.org' . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.4.1.11129.2.4.2 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (240 bytes) 00ee007500f095a459f200d18240102d2f93888ead4bfe1d47e399e1d034a6b0a8aa8eb2730000016f1baadec20000040300463044022017aaf9caff5786523d79eddf60fb7f084fe15b7270a5926b2b040c4247d6ce220220786431e0cf611bbab4eb9451a9781b4cea76d11cf35d32916144eaee4cd7d6e1007500b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016f1baae0a7000004030046304402202f6b0d97ee82094a51d2fdef42fcc5f704e2ac3fe4755b53250c8be503f1db1302207ec3a5151fd25f2f8ca316db4da5a5374f39c96f0f0fb0a82ab4abfed528aa16 . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11 (sha256WithRSAEncryption) . . . . . . . . [c:0|t:5|false] NULL . . . . [c:0|t:3|false] BIT STRING (2048 bits) 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