vufind.techlib.cz
Issued by R3
About this certificate
This digital certificate with serial number 03:84:68:2c:1e:85:45:5c:f1:07:14:f3:12:74:88:11:7c:17 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): 03:84:68:2c:1e:85:45:5c:f1:07:14:f3:12:74:88:11:7c:17Serial Number (int): 306392599020499124449256104089376269630487
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 4a:ed:18:21:75:6c:33:5b:d4:99:05:f4:fd:7d:1f:3a:c3:04:cc:5c
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6
Fingerprint (sha1): 63:a9:4e:7f:b2:aa:6a:ac:d2:8b:51:68:69:29:47:76:20:85:47:0e
Fingerprint (sha256): 46:5f:d9:8a:2b:f2:ff:e6:ca:09:a2:4d:c3:ae:ef:c0:c4:b9:ca:53:bb:c7:2d:df:f2:52:36:72:c6:d2:98:9d
Issuing Certificate URL: http://r3.i.lencr.org/
Revocation information
OCSP Server: http://r3.o.lencr.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----- MIIFODCCBCCgAwIBAgISA4RoLB6FRVzxBxTzEnSIEXwXMA0GCSqGSIb3DQEBCwUA MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD EwJSMzAeFw0yMzA0MjQxNTE3MjRaFw0yMzA3MjMxNTE3MjNaMBwxGjAYBgNVBAMT EXZ1ZmluZC50ZWNobGliLmN6MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKC AQEAzTT0NZl8tKab4TMr2nvpRUE2JFPFnzgcK3UEXvE5PgfLae3myrNJUq45KNE4 xxypYjMe2fiLShQuBBQXSY9IB7RpD8fbI6Q3zW0ozwCHFbHjWaUaxxi1p9JlFzUw JZ/vU3HLjSolTTY7J4X5/ZjlqO78WuFZe6T6g7aGnK/FiW5gsTW1XYQm11xg9Jd9 W2Nqrh0vkcYn4JugkXq09rqb+RmeI7rAJCrmxJ1q3SiAhfZsIQ9Uk4WN7amHNNwA 6d5L9jzcc29DPEmoLO8QD2L1w1RUudt/5TnyeLte4D9TqvUHIVjD+nSnfB3kXEL+ lzYbM84JJNs2k+e1tcXYR/qZ8QIDAQABo4ICXDCCAlgwDgYDVR0PAQH/BAQDAgWg MB0GA1UdJQQWMBQGCCsGAQUFBwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0G A1UdDgQWBBRK7RghdWwzW9SZBfT9fR86wwTMXDAfBgNVHSMEGDAWgBQULrMXt1hW y65QCUDmH6+dixTCxjBVBggrBgEFBQcBAQRJMEcwIQYIKwYBBQUHMAGGFWh0dHA6 Ly9yMy5vLmxlbmNyLm9yZzAiBggrBgEFBQcwAoYWaHR0cDovL3IzLmkubGVuY3Iu b3JnLzAtBgNVHREEJjAkgg92dWZpbmQubnRrY3ouY3qCEXZ1ZmluZC50ZWNobGli LmN6MEwGA1UdIARFMEMwCAYGZ4EMAQIBMDcGCysGAQQBgt8TAQEBMCgwJgYIKwYB BQUHAgEWGmh0dHA6Ly9jcHMubGV0c2VuY3J5cHQub3JnMIIBAwYKKwYBBAHWeQIE AgSB9ASB8QDvAHUAejKMVNi3LbYg6jjgUh7phBZwMhOFTTvSK8E6V6NS61IAAAGH tA47swAABAMARjBEAiBF1qssHVp0SrKA4ewOhvzQf2E+XUGABsn8/JCFGFq6/QIg G7JssZCOBDGclATp7S6P1e9Gp3b3hBIoyDkbbZA8TQYAdgDoPtDaPvUGNTLnVyi8 iWvJA9PL0RFr7Otp4Xd9bQa9bgAAAYe0DjuVAAAEAwBHMEUCIQCJ9NXbtOeBL/yM D/aAwbjeSt4bRxUeEaCQcZjM2MaLlAIgWWVyvRof6r4QYCxueu56lhBe+kaLELQw cxDJ3kxK4d4wDQYJKoZIhvcNAQELBQADggEBADaBayElrFX3INU4ZF6IXtPu5oDx MTrFkXF9HAQAOYDT+s/ww8AUXMQr8uPsCHOHsJ0EqZ2wSpogDbLQSVpM/wzaEEEd IGimAfJsFhokO6w8geuCf57OFoBM3+6zkrJMsDZPIUYjSM6XN9Pu9swj/FDu1WLZ xfjWrdMwKAmojr2vvGGe1UyMIFWb8CEHZ6EqgcQgRZUiHu4gI5QLyGKgNocpPdOp n+dKlC9beSZFexHQTEY4cKnFxDVNFMTXESl6e/AWEZgCCeuT75JOkV5y5YlgUZN0 kFRoPENWDeZPjEr715vX+uE9aGLj/oVVOJwo/QHPhLQtaN+jwcn5nawl2xw= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAzTT0NZl8tKab4TMr2nvp RUE2JFPFnzgcK3UEXvE5PgfLae3myrNJUq45KNE4xxypYjMe2fiLShQuBBQXSY9I B7RpD8fbI6Q3zW0ozwCHFbHjWaUaxxi1p9JlFzUwJZ/vU3HLjSolTTY7J4X5/Zjl qO78WuFZe6T6g7aGnK/FiW5gsTW1XYQm11xg9Jd9W2Nqrh0vkcYn4JugkXq09rqb +RmeI7rAJCrmxJ1q3SiAhfZsIQ9Uk4WN7amHNNwA6d5L9jzcc29DPEmoLO8QD2L1 w1RUudt/5TnyeLte4D9TqvUHIVjD+nSnfB3kXEL+lzYbM84JJNs2k+e1tcXYR/qZ 8QIDAQAB -----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 306392599020499124449256104089376269630487 . . . . . . . . [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 'R3' . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-04-24 15:17:24 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-07-23 15:17:23 +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 25904965080496967222360662738336041400916052093149489185019392156515817137382055497255633556710107866922903973022215834003842869033263063819181904117954799101901441229012450359871573706736864405990966868088586684107620051117201346114238678016640682570042423520522789525066057869324071235959496256516052532066860479731511106410181720507110284451828967223998093761556354455637494402236606830456633768364954858265998762181496397242820872947899302193389446693523030430909505852466617817769338050647558386227526063689461711127642058093700420818924364584870770482533049611643368605309789985717579241518211387169450279737841 . . . . . . . . . . . . . . . . . . . . [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) 4aed1821756c335bd49905f4fd7d1f3ac304cc5c . . . . . . . . . . . . . . . . [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 142eb317b75856cbae500940e61faf9d8b14c2c6 . . . . . . . . . . . . . . . . [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 (73 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://r3.o.lencr.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://r3.i.lencr.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) 00ef0075007a328c54d8b72db620ea38e0521ee98416703213854d3bd22bc13a57a352eb5200000187b40e3bb30000040300463044022045d6ab2c1d5a744ab280e1ec0e86fcd07f613e5d418006c9fcfc9085185abafd02201bb26cb1908e04319c9404e9ed2e8fd5ef46a776f7841228c8391b6d903c4d06007600e83ed0da3ef5063532e75728bc896bc903d3cbd1116beceb69e1777d6d06bd6e00000187b40e3b95000004030047304502210089f4d5dbb4e7812ffc8c0ff680c1b8de4ade1b47151e11a0907198ccd8c68b940220596572bd1a1feabe10602c6e7aee7a96105efa468b10b4307310c9de4c4ae1de . . . . [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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