vufind.techlib.cz
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:d4:fa:8c:d7:0f:66:48:dc:9c:fd:0d:f8:69:17:9b:f7:6e 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=vufind.techlib.cz
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:d4:fa:8c:d7:0f:66:48:dc:9c:fd:0d:f8:69:17:9b:f7:6eSerial Number (int): 333809757864964260816501509790978897868654
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 33:d5:de:d4:9c:5b:dd:b1:f2:45:a5:57:bf:9f:27:69:6d:4b:99:fd
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 27:9a:ac:42:c7:c9:4d:67:55:46:d0:eb:d6:40:88:e0:fa:06:ae:7e
Fingerprint (sha256): 86:d2:12:4e:72:a0:39:92:1a:f1:5d:8a:b0:56:fd:68:4c:44:40:e7:bd:48:3b:63:3e:e1:7a:29:66:dd:fc:05
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate vufind.techlib.cz
2
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for vufind.techlib.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
vufind.ntkcz.cz
vufind.techlib.cz
vufind.techlib.cz
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Certificate
The complete raw certificate details for vufind.techlib.cz in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFajCCBFKgAwIBAgISA9T6jNcPZkjcnP0N+GkXm/duMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTExMjAwNTMwMTVaFw0y MDAyMTgwNTMwMTVaMBwxGjAYBgNVBAMTEXZ1ZmluZC50ZWNobGliLmN6MIIBIjAN BgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA0yhQlkztBoPwu2BgCziTFFYHddoZ sQjNUK8YzAq189w/mp0jsaC3za5EI93drfjMCdU/w4OcqZPzzwzaz526/5o3MqA3 6UZRZibudTzf8O5t9uSiEp/CdjqEWfkoOSfRBXYNHPhsdlm1Tf5x23sqh3xiPD9t IQm7J+ERMGS/ADjBj5bJ7vWwao30JH7CVQZfzt83q0f81H/wlk6d4ur9T41693s0 Oc9NjyA34G76nmHzmJ6Th0wcrSNNB6893fwBUPYF7FNwv1tn2za/aFA6MKVmQ2vf SuIusvOzkA5+IjgoF5tWzcID1xZdqBWAWLD2IpgSe14MluGdIDUrGl9ezQIDAQAB o4ICdjCCAnIwDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQWMBQGCCsGAQUFBwMBBggr BgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQWBBQz1d7UnFvdsfJFpVe/nydp bUuZ/TAfBgNVHSMEGDAWgBSoSmpjBH3duubRObemRWXv86jsoTBvBggrBgEFBQcB AQRjMGEwLgYIKwYBBQUHMAGGImh0dHA6Ly9vY3NwLmludC14My5sZXRzZW5jcnlw dC5vcmcwLwYIKwYBBQUHMAKGI2h0dHA6Ly9jZXJ0LmludC14My5sZXRzZW5jcnlw dC5vcmcvMC0GA1UdEQQmMCSCD3Z1ZmluZC5udGtjei5jeoIRdnVmaW5kLnRlY2hs aWIuY3owTAYDVR0gBEUwQzAIBgZngQwBAgEwNwYLKwYBBAGC3xMBAQEwKDAmBggr BgEFBQcCARYaaHR0cDovL2Nwcy5sZXRzZW5jcnlwdC5vcmcwggEDBgorBgEEAdZ5 AgQCBIH0BIHxAO8AdgDwlaRZ8gDRgkAQLS+TiI6tS/4dR+OZ4dA0prCoqo6ycwAA AW6HgRvHAAAEAwBHMEUCIHyR6k5rdD//zduCR/aLoO8UIEsWDa3rczvwwekH54yA AiEArNWV1g2k4lVUtaf7uvvEfEoVPux4p3Qy930adWmLGOIAdQAHt1wb5X1o//Gw xh0jFce65ld8V5S3au68YToaadOiHAAAAW6HgRv1AAAEAwBGMEQCIDlQPrVwYlTg MLM8vK57xWsVyv/hqz7HrIViSo2hqC9WAiB9gRCbXLTHSebOvr52IJsvXQNz2vxd uDak4SoLn4uaOjANBgkqhkiG9w0BAQsFAAOCAQEAI0OKR7OlpPyQD06gvS9MK/f2 EdmK31wk1XPrYsOrsmo8tCqvH51GyeJywF/xnvM8XZFDz4LAreqHbT4Xbin/xAqN lVCc8BPiD33KF3CXFRr4oGbVOHbHSwa5h815tk10ycgAjXp3ofDkYmQaAVL23hAw hRL5Fpp0gVI5RGKaV8LI1afLTGXf0Ecu8xeQmvC1FBuMrKJOvnRmdNFEKvCxMnEq GojvW5MxyznXt/OvYwjAf8OAOqzrlmE48O2nmA76h1ZCW3VNqcEGbe4UvSWCAjtC 20jEYnCZagEywTenK1jCbgzMF4Dst5OjonhMfFUwqwfDRQFfa8TxW0931Zz0Bg== -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA0yhQlkztBoPwu2BgCziT FFYHddoZsQjNUK8YzAq189w/mp0jsaC3za5EI93drfjMCdU/w4OcqZPzzwzaz526 /5o3MqA36UZRZibudTzf8O5t9uSiEp/CdjqEWfkoOSfRBXYNHPhsdlm1Tf5x23sq h3xiPD9tIQm7J+ERMGS/ADjBj5bJ7vWwao30JH7CVQZfzt83q0f81H/wlk6d4ur9 T41693s0Oc9NjyA34G76nmHzmJ6Th0wcrSNNB6893fwBUPYF7FNwv1tn2za/aFA6 MKVmQ2vfSuIusvOzkA5+IjgoF5tWzcID1xZdqBWAWLD2IpgSe14MluGdIDUrGl9e zQIDAQAB -----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 333809757864964260816501509790978897868654 . . . . . . . . [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 2019-11-20 05:30:15 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-02-18 05:30:15 +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 'vufind.techlib.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 26656162313402098111830164971504867114079945243517885170486666438277915080672230499123265691308605076520401255160741575588172510658567157570139485430414906981258886497632926009268115353187660582730317223116795354636442368899548831193737878087114565214767236472901525282946588710002551953068700082991502833576211912951519632355517086568261598290008111775533282569936413899242804695683058532183733564870218714581932013845077975378334161867851995485732823072661208718242897326830303900355214838843277283587893807458267936671233114558489105330718303489002788569541744770956995740332629239112807153931378731195190107659981 . . . . . . . . . . . . . . . . . . . . [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) 33d5ded49c5bddb1f245a557bf9f27696d4b99fd . . . . . . . . . . . . . . . . [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 (38 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'vufind.ntkcz.cz' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'vufind.techlib.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 (244 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes) 00ef007600f095a459f200d18240102d2f93888ead4bfe1d47e399e1d034a6b0a8aa8eb2730000016e87811bc7000004030047304502207c91ea4e6b743fffcddb8247f68ba0ef14204b160dadeb733bf0c1e907e78c80022100acd595d60da4e25554b5a7fbbafbc47c4a153eec78a77432f77d1a75698b18e200750007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c0000016e87811bf50000040300463044022039503eb5706254e030b33cbcae7bc56b15caffe1ab3ec7ac85624a8da1a82f5602207d81109b5cb4c749e6cebebe76209b2f5d0373dafc5db836a4e12a0b9f8b9a3a . . . . [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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