c-k.ca
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:b0:0d:8b:5e:5f:df:49:cb:51:07:9f:c4:cd:fb:dd:14:bf 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=c-k.ca
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:b0:0d:8b:5e:5f:df:49:cb:51:07:9f:c4:cd:fb:dd:14:bfSerial Number (int): 321244557980716732307836000053623261041855
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: ae:1d:ae:26:4c:76:0f:85:67:ca:53:db:32:e2:b3:50:bc:fb:93:c7
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 93:26:61:9a:50:55:4c:4f:33:21:8e:98:bf:9c:e7:0e:5a:c4:83:12
Fingerprint (sha256): 27:cb:3e:de:d2:32:3f:f3:83:4d:18:b4:a7:b9:bd:05:de:43:af:b3:f9:3e:bb:cb:5e:83:83:05:fa:85:a5:39
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate c-k.ca
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for c-k.ca
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
c-k.ca
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Certificate
The complete raw certificate details for c-k.ca in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFRDCCBCygAwIBAgISA7ANi15f30nLUQefxM373RS/MA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0yMDAzMjIyMTMxNTRaFw0y MDA2MjAyMTMxNTRaMBExDzANBgNVBAMTBmMtay5jYTCCASIwDQYJKoZIhvcNAQEB BQADggEPADCCAQoCggEBAJR4T3l3MmeYceU578to/Fx9O1mhgU0qEYlLn+KkzS1B +JhY1F9nU0gQsih3CzD2CNNbP+0mL55US8G1hH791n2TGpip0BgLP6JeqY+0ec81 K+GW5dNCdwhxmF9aLB6KTxc1/6Ch5lOT1Q32EfwR2bL4eM2Nw8We+9nkPL4TjzDl +hyHmCAwDaxbGqPbOdf0NVKFLyI0NG4zCqRgZua/hx/qtr16spEn3tt2wU2/6k6s 48wc1C2lX/XA2Up4NmmKnYWxPFFzXaJ0zJSXICaZdwD6pL0gC0JOEHaQ47V0HBJ1 R1n5NdiKoIhAIkl3M/sZmLtfg4lA/B94Q2hxa7g4zJUCAwEAAaOCAlswggJXMA4G A1UdDwEB/wQEAwIFoDAdBgNVHSUEFjAUBggrBgEFBQcDAQYIKwYBBQUHAwIwDAYD VR0TAQH/BAIwADAdBgNVHQ4EFgQUrh2uJkx2D4VnylPbMuKzULz7k8cwHwYDVR0j BBgwFoAUqEpqYwR93brm0Tm3pkVl7/Oo7KEwbwYIKwYBBQUHAQEEYzBhMC4GCCsG AQUFBzABhiJodHRwOi8vb2NzcC5pbnQteDMubGV0c2VuY3J5cHQub3JnMC8GCCsG AQUFBzAChiNodHRwOi8vY2VydC5pbnQteDMubGV0c2VuY3J5cHQub3JnLzARBgNV HREECjAIggZjLWsuY2EwTAYDVR0gBEUwQzAIBgZngQwBAgEwNwYLKwYBBAGC3xMB AQEwKDAmBggrBgEFBQcCARYaaHR0cDovL2Nwcy5sZXRzZW5jcnlwdC5vcmcwggEE BgorBgEEAdZ5AgQCBIH1BIHyAPAAdgAHt1wb5X1o//Gwxh0jFce65ld8V5S3au68 YToaadOiHAAAAXEEX7kQAAAEAwBHMEUCIBM3MjWAmAGKtN6rfqNAVD6kz2FH3tFA 6R/eAGc52KHhAiEA8QVAQPJQxvfo3el4kQ8qoSKUuxuDmyQXGrz2Lheyr6sAdgDn EvKwN34aYvuOyQxhhPHqezfLVh0RJlvz4PNL8kFUbgAAAXEEX7jmAAAEAwBHMEUC IQDsT0zi/c91+jL9YvzbGqrmtJ9bksYZhE//WDKe+Xd/owIgAeSJ9+aY2QZYnJjM +ksnb2UR5yR6Qjg035DMZ2j11dgwDQYJKoZIhvcNAQELBQADggEBAIDGJen2xFp0 2hCHQvfdTaDPmDAbuwVTKsSXR6N0AzNvWT/d8gLC2yujpjVt9cUnONUjJQoXJxuK tkENoi3HOHTstZE9PVSQsGiskAmFTebJTvfc3TPfwkhD/VIsq/hCLZ9t9l/IBso5 Wg0kho/o8WAds88ZF/3ZHBmu2e8xUYU5BM2eJDATFk5Ys3zf8iD956ZZQm/RCFte fhY6wpA6CcZiKd9uN6AKCwZaLcfWGCsuEqp9za9s+JoS18BEGEeBfkQ4jiEEpn7N aO/NbqZJtmyNLWreRx2SkahiUvV1Wu3vEVLHrx9i/AbChbBXJrZo14nIqb5aJ/iN 00U4/2+MIlQ= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAlHhPeXcyZ5hx5Tnvy2j8 XH07WaGBTSoRiUuf4qTNLUH4mFjUX2dTSBCyKHcLMPYI01s/7SYvnlRLwbWEfv3W fZMamKnQGAs/ol6pj7R5zzUr4Zbl00J3CHGYX1osHopPFzX/oKHmU5PVDfYR/BHZ svh4zY3DxZ772eQ8vhOPMOX6HIeYIDANrFsao9s51/Q1UoUvIjQ0bjMKpGBm5r+H H+q2vXqykSfe23bBTb/qTqzjzBzULaVf9cDZSng2aYqdhbE8UXNdonTMlJcgJpl3 APqkvSALQk4QdpDjtXQcEnVHWfk12IqgiEAiSXcz+xmYu1+DiUD8H3hDaHFruDjM lQIDAQAB -----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 321244557980716732307836000053623261041855 . . . . . . . . [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 2020-03-22 21:31:54 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-06-20 21:31:54 +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 'c-k.ca' . . . . . . . . [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 18742596427633776496480706462283960484504984827168690222244115013463970967382954179998560522447907462719281235464856457975059479088410384366617286905207458371903747975671378323913504301713223797270174788903208240860077233045705853258609547393323614784462531703525089404655608691921284338720489787245879362262313008348497928898438690769115493256516763013934454843893241146501632563112357350633451512873352657430913731051027791531993040151260109061496965468080736474463688564815611745639153711739139339288365038510657007281401176247340918369381436096572481944308237202307357077103720821591424918724235812038317404900501 . . . . . . . . . . . . . . . . . . . . [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) ae1dae264c760f8567ca53db32e2b350bcfb93c7 . . . . . . . . . . . . . . . . [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 (10 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'c-k.ca' . . . . . . . . . . . . . . . . [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) 00f000760007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c00000171045fb91000000403004730450220133732358098018ab4deab7ea340543ea4cf6147ded140e91fde006739d8a1e1022100f1054040f250c6f7e8dde978910f2aa12294bb1b839b24171abcf62e17b2afab007600e712f2b0377e1a62fb8ec90c6184f1ea7b37cb561d11265bf3e0f34bf241546e00000171045fb8e60000040300473045022100ec4f4ce2fdcf75fa32fd62fcdb1aaae6b49f5b92c619844fff58329ef9777fa3022001e489f7e698d906589c98ccfa4b276f6511e7247a423834df90cc6768f5d5d8 . . . . [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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