bigclean.techlib.cz
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:7d:12:d7:74:5c:1c:0b:c4:b7:42:fd:fc:38:eb:b3:71:a7 was issued on by Let's Encrypt.
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=bigclean.techlib.cz
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:7d:12:d7:74:5c:1c:0b:c4:b7:42:fd:fc:38:eb:b3:71:a7Serial Number (int): 303897198468203946128775440779333573243303
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 0a:7d:79:d4:80:fd:37:b3:70:6b:44:5a:22:a8:12:35:b1:9a:82:78
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 1a:7e:71:6b:db:66:0d:83:1f:ae:13:15:95:02:33:28:0e:7c:67:f6
Fingerprint (sha256): 0c:af:90:ea:be:a0:8b:26:59:59:8b:de:59:30:ce:e0:7a:2c:dc:d7:91:da:53:8b:44:0a:33:6a:48:06:25:08
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.org/Check the revocation status for certificate bigclean.techlib.cz
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for bigclean.techlib.cz
Public Key Algorithm
RSA
Key Size
4096
Signature Algorithm
SHA256 with RSA
Key Usage
Digital Signature
Key Encipherment
Extended Key Usages
Server Authentication
Client Authentication
Extensions
8 extensions
No
unhandled critical extensions
CA Certificate
This is not a CA certificate
Subject Alternative Names
bigclean.techlib.cz
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Certificate
The complete raw certificate details for bigclean.techlib.cz in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIGCjCCBPKgAwIBAgISA30S13RcHAvEt0L9/Djrs3GnMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xNzAzMzEyMTAxMDBaFw0x NzA2MjkyMTAxMDBaMB4xHDAaBgNVBAMTE2JpZ2NsZWFuLnRlY2hsaWIuY3owggIi MA0GCSqGSIb3DQEBAQUAA4ICDwAwggIKAoICAQCtTySikvEdG+9SDt3C/5Lj13rM 5YYMt0mtQ+yvr8ru/LIyD6UMDXiO4we48H/39xxg1T97YltYT6kZ8MYHWJBu76J6 +z9+ycSIsMqKt5nH3yWlHrhHp2CjIQnlFtvjKTTeoxvlj51rASRevQIOTDzeHNyF EmM36FRxM+p4kzuZ1fLLU/FoqdiCErKOLy98N9zB4Z8geVkwdG3N9f/VFn2Tig4v vXeAuNi+g7YVIOhaBUXUpwgpFguySQ9P2xwFVCGjSMV0QbYPUNsx333iHHHwacG5 ShjZOKZJi8nVWte3YQ4Qo4MbWeMM41HHgdQLuKAhYurwRIkBb0bwaD1BZsrJ5ku5 l5rHziXarPk2ZUcoJCMAP8LHCEJbOG8vgW6DUefGQnfNCi5xjRiLcjHwggafQDH9 QATRBFLVJ8moWu6Bc1D5xZgSt23YDC+dVTwIhx4wus97ITcAFzpI/uDXypQ3hFrM yMNygFFzdRJ2KR3Ve7h9HnPzKyNEjXc9TePE5CyBDaqgnYYlLrExH5WB2SUkBtSj 9fkkz6dR7Xz0uY3NTa937EqAFztzP+EZW6STdy5dra27Zu9qox+y5ej82o4+gk1u d8E3D/AjQpdgZKIYUjMotMWP3KcMfaqHMnzxaSnSgWknZKnNBenfMrnthIzk1/2g rXha73a9GQtnPe08vQIDAQABo4ICFDCCAhAwDgYDVR0PAQH/BAQDAgWgMB0GA1Ud JQQWMBQGCCsGAQUFBwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQW BBQKfXnUgP03s3BrRFoiqBI1sZqCeDAfBgNVHSMEGDAWgBSoSmpjBH3duubRObem RWXv86jsoTBwBggrBgEFBQcBAQRkMGIwLwYIKwYBBQUHMAGGI2h0dHA6Ly9vY3Nw LmludC14My5sZXRzZW5jcnlwdC5vcmcvMC8GCCsGAQUFBzAChiNodHRwOi8vY2Vy dC5pbnQteDMubGV0c2VuY3J5cHQub3JnLzAeBgNVHREEFzAVghNiaWdjbGVhbi50 ZWNobGliLmN6MIH+BgNVHSAEgfYwgfMwCAYGZ4EMAQIBMIHmBgsrBgEEAYLfEwEB ATCB1jAmBggrBgEFBQcCARYaaHR0cDovL2Nwcy5sZXRzZW5jcnlwdC5vcmcwgasG CCsGAQUFBwICMIGeDIGbVGhpcyBDZXJ0aWZpY2F0ZSBtYXkgb25seSBiZSByZWxp ZWQgdXBvbiBieSBSZWx5aW5nIFBhcnRpZXMgYW5kIG9ubHkgaW4gYWNjb3JkYW5j ZSB3aXRoIHRoZSBDZXJ0aWZpY2F0ZSBQb2xpY3kgZm91bmQgYXQgaHR0cHM6Ly9s ZXRzZW5jcnlwdC5vcmcvcmVwb3NpdG9yeS8wDQYJKoZIhvcNAQELBQADggEBABJ+ rSF0p9xwFmCMnRmCaeQymfAUUA/ZdY7E2Md/iTb4y64qMfQGBUkwA8v8dpUeMT4e 5cz1CtoZxUd8p7iDvH6pHP+EWLymiVVInM6GTfsWO5y0sSIbpRMYc3QFe+YbX1zZ gc8S6hfaQLvYjBUlLbdibR2ijTwoHlNetyUqic4F/LQtzK2DlWdNazHKUJt5EuT5 jlmHICy/ezcgn+9YUZKbr+oL8OaCcwyUjH8S4S4aDyWowkUM+xQKmW8ofit76Fvu mnqu8I2D3F474oXSzt58RF3c5pIbHEAnAjjmayC8S1VcBo84h+2iKcjS9NnKjSzX 9jQlq3CcGjkejglzhEw= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEArU8kopLxHRvvUg7dwv+S 49d6zOWGDLdJrUPsr6/K7vyyMg+lDA14juMHuPB/9/ccYNU/e2JbWE+pGfDGB1iQ bu+ievs/fsnEiLDKireZx98lpR64R6dgoyEJ5Rbb4yk03qMb5Y+dawEkXr0CDkw8 3hzchRJjN+hUcTPqeJM7mdXyy1PxaKnYghKyji8vfDfcweGfIHlZMHRtzfX/1RZ9 k4oOL713gLjYvoO2FSDoWgVF1KcIKRYLskkPT9scBVQho0jFdEG2D1DbMd994hxx 8GnBuUoY2TimSYvJ1VrXt2EOEKODG1njDONRx4HUC7igIWLq8ESJAW9G8Gg9QWbK yeZLuZeax84l2qz5NmVHKCQjAD/CxwhCWzhvL4Fug1HnxkJ3zQoucY0Yi3Ix8IIG n0Ax/UAE0QRS1SfJqFrugXNQ+cWYErdt2AwvnVU8CIceMLrPeyE3ABc6SP7g18qU N4RazMjDcoBRc3USdikd1Xu4fR5z8ysjRI13PU3jxOQsgQ2qoJ2GJS6xMR+Vgdkl JAbUo/X5JM+nUe189LmNzU2vd+xKgBc7cz/hGVukk3cuXa2tu2bvaqMfsuXo/NqO PoJNbnfBNw/wI0KXYGSiGFIzKLTFj9ynDH2qhzJ88Wkp0oFpJ2SpzQXp3zK57YSM 5Nf9oK14Wu92vRkLZz3tPL0CAwEAAQ== -----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 303897198468203946128775440779333573243303 . . . . . . . . [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 2017-03-31 21:01:00 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2017-06-29 21:01:00 +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 'bigclean.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 (4208 bits) . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 707039656976940016241984581298819288115795941205025925088650373622699143225897499535350486631623375191063359378365309299575755365766707318588166907093266347251936403970369700249908911087263624327057710263026983408319170065620881312304606682662596992488453236227272663677049589342930495680850530780968525675045605071249389959740891520376761070018576300854007826847174929969775176531800475147711463239313486985750944418659591508202940120973711642078010690764417078661027314176000401198363476144138401384171202052806957476431358599601133211167499681438066940723962354106164234955268412571257922524798731498219414745746963577738852988821668039902126858944734703310382782598452853503223461634398800756326357490421831462888248562034133908931725469700942726212273860249492265580754748169433555544329945575522431647952892561347948920383424704488105878049971278316307116441950002312563499299734566761883371008996124228439389091618116001889173166452428083108261228405288160404121180981046171668519343394862486700303301716624103786308293589711189432773616035889742394245720032048206979724823202053948247398708229180536966478493779478083587439707615071994105362191686939353434832054610788122487115099512079846341362040758387894380438538007952573 . . . . . . . . . . . . . . . . . . . . [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) 0a7d79d480fd37b3706b445a22a81235b19a8278 . . . . . . . . . . . . . . . . [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 (100 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 (23 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'bigclean.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 (246 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 1.3.6.1.5.5.7.2.2 (unotice) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:12|false] UTF8String 'This Certificate may only be relied upon by Relying Parties and only in accordance with the Certificate Policy found at https://letsencrypt.org/repository/' . . . . [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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