www.kncar.cz
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:2e:d7:88:73:55:e3:a9:5b:91:f6:10:2b:d7:a6:a0:c6:b2 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.kncar.cz
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:2e:d7:88:73:55:e3:a9:5b:91:f6:10:2b:d7:a6:a0:c6:b2Serial Number (int): 277276339184392382980194115319000327046834
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 96:33:e2:30:8c:9a:c0:f7:3d:5f:b7:a5:99:15:91:20:55:7f:c1:fc
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): bf:49:b1:9b:98:01:ba:a3:f4:64:90:cd:b0:ee:00:6a:38:41:ab:f5
Fingerprint (sha256): dc:b8:42:93:2c:fa:bf:7d:84:a0:a2:b4:4b:10:1c:15:45:f3:e3:3e:07:57:91:4f:d7:ee:db:d2:50:fe:e3:51
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.kncar.cz
2
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for www.kncar.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
9 extensions
No
unhandled critical extensions
CA Certificate
This is not a CA certificate
Subject Alternative Names
kncar.cz
www.kncar.cz
www.kncar.cz
Other certificates including the domain name kncar.cz
(limited to 100 certificates)
Certificate
The complete raw certificate details for www.kncar.cz in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIGWjCCBUKgAwIBAgISAy7XiHNV46lbkfYQK9emoMayMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTAzMjkwMjE5MDFaFw0x OTA2MjcwMjE5MDFaMBcxFTATBgNVBAMTDHd3dy5rbmNhci5jejCCAiIwDQYJKoZI hvcNAQEBBQADggIPADCCAgoCggIBANgOjsU+x78KoT+P5UujmoilcrfV+pTvxzuL SuVXaWPeSwXg5gN+UYgWJTcWkvXrVxqNDaVuQ0s8Fkzv/7DBteWKclvtmw7JRr5U G8MaVkLS7pLwUEJQ39miv7XIm1WPteq1MPhdNUO6vmpIwMloTUruCju49T/cdpsN 5J5J+H2FxurO8+nXqFGavvXAQ2qQqF2wV7dptmX7p3X+P7NHt8ZKQOpNurp07uQx P0sZwiIVYIRIpPUGGDBoi2cZ4VmYI3PJYckGck7UJ+EtC8PVBm34/CU6OzmbGJdF 5qQi8gwvmwdvA0mOn2vjlvqyrp5hXByJLuCtBdAA9B36Rzi8HDUE+jCKlMzsXcbx fSyjV4ZMKk5iKVFbR+feY/LxnRDZ8dhgUfKnuJgKlANCp4vCL453zestZq0iKElm DF4dev6l/Vajzk2cM8OjU3jeqXZaERz7ngLuux1iOrqLDdxGiAf00MMwGcFf+zC+ VBAzBBUJHzl5pFuxWZpMgnAoB9+/xDnjBHKte/6Y029tKeJNIzRd5cVJ/3s0MayW z3YFa9LaWYW1cVdR4ZcRgsuuBWHqrfoRzXKH9gabFchsAzW5XsElHWXg6AJ2460k LuRz4d0l27SoDb7p282IuBHS6FSdqzB3R9z2ioBnkgaswUcsBc0k009+3umJuYA1 WUW/D+P1AgMBAAGjggJrMIICZzAOBgNVHQ8BAf8EBAMCBaAwHQYDVR0lBBYwFAYI KwYBBQUHAwEGCCsGAQUFBwMCMAwGA1UdEwEB/wQCMAAwHQYDVR0OBBYEFJYz4jCM msD3PV+3pZkVkSBVf8H8MB8GA1UdIwQYMBaAFKhKamMEfd265tE5t6ZFZe/zqOyh MG8GCCsGAQUFBwEBBGMwYTAuBggrBgEFBQcwAYYiaHR0cDovL29jc3AuaW50LXgz LmxldHNlbmNyeXB0Lm9yZzAvBggrBgEFBQcwAoYjaHR0cDovL2NlcnQuaW50LXgz LmxldHNlbmNyeXB0Lm9yZy8wIQYDVR0RBBowGIIIa25jYXIuY3qCDHd3dy5rbmNh ci5jejBMBgNVHSAERTBDMAgGBmeBDAECATA3BgsrBgEEAYLfEwEBATAoMCYGCCsG AQUFBwIBFhpodHRwOi8vY3BzLmxldHNlbmNyeXB0Lm9yZzCCAQQGCisGAQQB1nkC BAIEgfUEgfIA8AB3AOJpS64m6OlACeiGG7Y7g9Q+5/50iPukjyiTAZ3d8dv+AAAB acd1N80AAAQDAEgwRgIhAIGh3zQ7+CD3hXqLTN0aYLm9V+b3901sMIbzGrESSCDB AiEAvWKvhs2iTT5cWn20sVfuyp0bOJMGhdsPSTkSO2se1MMAdQBj8tvN6DvMLM8L coQnV2szpI1hd4+9daY4scdoVEvYjQAAAWnHdTfcAAAEAwBGMEQCIH0yn9gJCr1J iq50hGfJF5E77N9k2t7IYWoECtIzonoQAiBMR0xGvzx6s9mYw0O2G9uCqRLEmQYn Bil7tUTuunbVWjANBgkqhkiG9w0BAQsFAAOCAQEAlj+nyeRxltgPgkBCOt7e9q+j 7SUV5MmlOAahAfcZHroFwmvNFbHEQMrHXFB3+DujYHd59tzeJABTch5g2E1VyaUO FHdG7xVLPgN+6XS4c/uEimEdJWIXBm/RMKAZaH3WLaPQYw+d5GYXYuhsu7Z7vF0k TG68NjSujY4OtpQXua8So5rjN57g+FKXy2RH5rNUSbJvC5czWH7C63FSlBlkPZ2f fo+XOn0b+lzdIdjfW249uZdvDH1QqJLfp05lvVEP2tagGsYWFMGoA3Knc9mhuzQl V2+D7g+UwWbPSwxAWgZMLTXMaEC0gBL9JDxQmpWucsYZ7z5IbF2hGA8NbrnE6A== -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEA2A6OxT7HvwqhP4/lS6Oa iKVyt9X6lO/HO4tK5VdpY95LBeDmA35RiBYlNxaS9etXGo0NpW5DSzwWTO//sMG1 5YpyW+2bDslGvlQbwxpWQtLukvBQQlDf2aK/tcibVY+16rUw+F01Q7q+akjAyWhN Su4KO7j1P9x2mw3knkn4fYXG6s7z6deoUZq+9cBDapCoXbBXt2m2Zfundf4/s0e3 xkpA6k26unTu5DE/SxnCIhVghEik9QYYMGiLZxnhWZgjc8lhyQZyTtQn4S0Lw9UG bfj8JTo7OZsYl0XmpCLyDC+bB28DSY6fa+OW+rKunmFcHIku4K0F0AD0HfpHOLwc NQT6MIqUzOxdxvF9LKNXhkwqTmIpUVtH595j8vGdENnx2GBR8qe4mAqUA0Kni8Iv jnfN6y1mrSIoSWYMXh16/qX9VqPOTZwzw6NTeN6pdloRHPueAu67HWI6uosN3EaI B/TQwzAZwV/7ML5UEDMEFQkfOXmkW7FZmkyCcCgH37/EOeMEcq17/pjTb20p4k0j NF3lxUn/ezQxrJbPdgVr0tpZhbVxV1HhlxGCy64FYeqt+hHNcof2BpsVyGwDNble wSUdZeDoAnbjrSQu5HPh3SXbtKgNvunbzYi4EdLoVJ2rMHdH3PaKgGeSBqzBRywF zSTTT37e6Ym5gDVZRb8P4/UCAwEAAQ== -----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 277276339184392382980194115319000327046834 . . . . . . . . [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 2019-03-29 02:19:01 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-06-27 02:19:01 +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.kncar.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 881435111751416339425830727153017119570000677700200212750135799152724884692960720007177842479519112255315385372368331613620392048409528301883485480692003509389130594093182863855527079262720109618787098922156692282676389726486279909029458968559920675927202475961588108705146927525817882922001357492258720599538881887427778462058799235659719440101222364468418936799506691099022060765147955788837485402614486298164970877206256795816532274339348452146632160012006881579601033157092375024083721856239349876985514352972872459065576602243727938561866428886548353094657256164563443549485723355966007617824618700466224463176890904269859538723841484741340727778552686485941755864599071145192349143096548075703548693061984201445767358649853044329046615913851273922948908325455144029464818675505521700587946682956068781031773124782222819768710338077830811946496957097871471559119108372226117207192238025767014869000736498310633166646743113074868109344188798508242506945256943887276328951579362609894053561223480388645422197987694252823969721256041088858056232775927051839659061439179022842895297442520454124560785259356290213878996780258024240184904772747927866512817781895547446943878626949038352388353267251499880380276523567746763679834563573 . . . . . . . . . . . . . . . . . . . . [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) 9633e2308c9ac0f73d5fb7a599159120557fc1fc . . . . . . . . . . . . . . . . [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 (26 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'kncar.cz' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.kncar.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 (245 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes) 00f0007700e2694bae26e8e94009e8861bb63b83d43ee7fe7488fba48f2893019dddf1dbfe00000169c77537cd000004030048304602210081a1df343bf820f7857a8b4cdd1a60b9bd57e6f7f74d6c3086f31ab1124820c1022100bd62af86cda24d3e5c5a7db4b157eeca9d1b38930685db0f4939123b6b1ed4c300750063f2dbcde83bcc2ccf0b728427576b33a48d61778fbd75a638b1c768544bd88d00000169c77537dc000004030046304402207d329fd8090abd498aae748467c917913becdf64dadec8616a040ad233a27a1002204c474c46bf3c7ab3d998c343b61bdb82a912c499062706297bb544eeba76d55a . . . . [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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