course.staenz.com
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:1e:12:e2:e2:b6:0b:6d:04:16:27:ce:bc:a2:07:bc:5e:74 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=course.staenz.com
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:1e:12:e2:e2:b6:0b:6d:04:16:27:ce:bc:a2:07:bc:5e:74Serial Number (int): 271570432964170683330723413932763260935796
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 59:e5:70:ff:10:f9:3a:86:15:00:15:4d:49:10:67:47:05:38:45:cc
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): a3:ed:81:ad:3a:bb:87:5f:0e:01:66:65:08:b3:5c:48:18:f2:6b:c8
Fingerprint (sha256): 34:f1:f8:6c:22:f9:f8:53:b6:8b:3e:9e:32:58:f7:d3:aa:38:19:01:cf:a6:9b:f2:a3:06:90:3f:be:36:9b:58
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate course.staenz.com
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for course.staenz.com
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
course.staenz.com
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Certificate
The complete raw certificate details for course.staenz.com in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIGWjCCBUKgAwIBAgISAx4S4uK2C20EFifOvKIHvF50MA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTA1MDkwNDM2MTJaFw0x OTA4MDcwNDM2MTJaMBwxGjAYBgNVBAMTEWNvdXJzZS5zdGFlbnouY29tMIICIjAN BgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAsAWowYIo1s1qMoUcgsEKp89SmKaW 2WeyqnWzbAr1Z9yCJd7iy8nFOOkkyA9uD67L583eeODoFIlu+qiKMBKKcpc8XErD OUdEakfI/0z6WPGUJHFH+Meb3k/ri6K7P9UCm0FarBTlDfeyLQa2dpbJX9kW/hjY KPQ6zOGbJinql8J15GnKUNy7SggI6HKhIhv3BQKwqVaq/msq4Kcu9ZokASq8YP6q +jn0dkVM/t3ff+9S9Lb4aEJ7W7EeimgKdnPfraAHhkF3rlVaikWcbV1+AmOOdtRj SzC+1FFapSwRzB5ZeHaFYR8LvqgSd/sca1RGpd8cQddHldwyLck/xzDnApL3gh1d NxBhCXKzSG4+2O0cRaWc9ZBJjgeIMqijkaunyyOetc5uUy1sMyERZRA5ghIWBHcL gBKysgBO9bH59+7b0C4a+cllSCLUAIQBL50sHEFLb3NBz08Th3+1ItdE59sCMU/Z Li1li2U2T0+vqOUqZVUAQO9Yrcvkn1+pcxptDFsFv14hEqrY5GVUVUDy9XOc/CQB BZ9gO9qAzBfzKAcORkcjYHEZDzwY1ssGEonF1SCiVSrgyB3TcnsxRSY5zEA+m45x qAQyEm5ft8IzhOSdpzaoldLDjmL6uzZTnDJzicp4aXT+/N+zgGWoA2S3B+/gIZ7w owjwTvSIwClBYtECAwEAAaOCAmYwggJiMA4GA1UdDwEB/wQEAwIFoDAdBgNVHSUE FjAUBggrBgEFBQcDAQYIKwYBBQUHAwIwDAYDVR0TAQH/BAIwADAdBgNVHQ4EFgQU WeVw/xD5OoYVABVNSRBnRwU4RcwwHwYDVR0jBBgwFoAUqEpqYwR93brm0Tm3pkVl 7/Oo7KEwbwYIKwYBBQUHAQEEYzBhMC4GCCsGAQUFBzABhiJodHRwOi8vb2NzcC5p bnQteDMubGV0c2VuY3J5cHQub3JnMC8GCCsGAQUFBzAChiNodHRwOi8vY2VydC5p bnQteDMubGV0c2VuY3J5cHQub3JnLzAcBgNVHREEFTATghFjb3Vyc2Uuc3RhZW56 LmNvbTBMBgNVHSAERTBDMAgGBmeBDAECATA3BgsrBgEEAYLfEwEBATAoMCYGCCsG AQUFBwIBFhpodHRwOi8vY3BzLmxldHNlbmNyeXB0Lm9yZzCCAQQGCisGAQQB1nkC BAIEgfUEgfIA8AB1AGPy283oO8wszwtyhCdXazOkjWF3j711pjixx2hUS9iNAAAB apsXihIAAAQDAEYwRAIgCwSYawXraiwXau7APf3Xvnq7ASJr7w5Lxk6Q9xwCzjMC IC+cVvbV/Nd1p7bwLjj09hZOsNwZRxlxxJPa0VylaJ3lAHcAdH7agzGtMxCRIZzO JU9CcMK//V5CIAjGNzV55hB7zFYAAAFqmxeL1wAABAMASDBGAiEAjZa+7fXKlZmc fHcNAcR0LxBFoTXEDH3crDhRw0W8Fu8CIQDLJt8WGX815rjfgC0E0BwNkbjm1XC3 UsVT9X4OrPmiWDANBgkqhkiG9w0BAQsFAAOCAQEAhwJIb8NQq46DmiNcALF5DN7r AVntQRNJffXswm673Zv+ZLs9dadqzjThCyz5w/jd+75b/MuitGNsTC7dIVy+/kW9 mgDsxlCcYE/ZRFJUEbqUad6D64H5vLVRifGHMHcdAt4wVyGJbVS9+lJIWVX+eo6o eyPqR8bP/LN8dD7BJBZhOpdtmzbUc5C64/8Q0gAdBpQUKGWqkqgzrw2dMz1w+4n7 GBTHN7c1QoXFrWEWiRJAPuY4rhfnFxd9j/x8hQgabrbdYC8TArOgZoYon8ghM0WV 0KAeT9qOdJdRbW/kShEXSQ2R/2Sa9yRubKzsBWx48ft4lgFrT+VbKaWrd0bwxA== -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAsAWowYIo1s1qMoUcgsEK p89SmKaW2WeyqnWzbAr1Z9yCJd7iy8nFOOkkyA9uD67L583eeODoFIlu+qiKMBKK cpc8XErDOUdEakfI/0z6WPGUJHFH+Meb3k/ri6K7P9UCm0FarBTlDfeyLQa2dpbJ X9kW/hjYKPQ6zOGbJinql8J15GnKUNy7SggI6HKhIhv3BQKwqVaq/msq4Kcu9Zok ASq8YP6q+jn0dkVM/t3ff+9S9Lb4aEJ7W7EeimgKdnPfraAHhkF3rlVaikWcbV1+ AmOOdtRjSzC+1FFapSwRzB5ZeHaFYR8LvqgSd/sca1RGpd8cQddHldwyLck/xzDn ApL3gh1dNxBhCXKzSG4+2O0cRaWc9ZBJjgeIMqijkaunyyOetc5uUy1sMyERZRA5 ghIWBHcLgBKysgBO9bH59+7b0C4a+cllSCLUAIQBL50sHEFLb3NBz08Th3+1ItdE 59sCMU/ZLi1li2U2T0+vqOUqZVUAQO9Yrcvkn1+pcxptDFsFv14hEqrY5GVUVUDy 9XOc/CQBBZ9gO9qAzBfzKAcORkcjYHEZDzwY1ssGEonF1SCiVSrgyB3TcnsxRSY5 zEA+m45xqAQyEm5ft8IzhOSdpzaoldLDjmL6uzZTnDJzicp4aXT+/N+zgGWoA2S3 B+/gIZ7wowjwTvSIwClBYtECAwEAAQ== -----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 271570432964170683330723413932763260935796 . . . . . . . . [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 2019-05-09 04:36:12 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-08-07 04:36:12 +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 'course.staenz.com' . . . . . . . . [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 718107541646318656632062374190119050832150047253036232502119699409687925730864336455798626318199979263261533315215914051724293064143150203936201220110946479644146726155670238154572102104203619655816982728414437904909846396421632172749222862063558843423079215131396194619166717645758220466237286683921107630797614797134222408655551064108457451069882504021353448772138310022210320362095300868666141667112751883625900967404801771700904949765482244573408143150265337500136731825558477124077133696474365060996933293038170428096374096561998968596604234145940807222895123642385661368064357967039197438021065352447262653146384975274932907110936220513227304503237680684707656056387782231444389733458260211739999182109669883117833698895670820485869701980988403592166525944570545494739391747218556366749774326285282947394802346293093827155041388018490262690629269759879963811916473920482458524190235636375401860537222753586293870689876939461078157174804145883290903344386792032528443565673969123525883531944751922700684637258987202957389457688760275917129254696404998230222553999711113761421180090587417311417460751284514296265145760157309756675239230835665772816240130431990892177449288974124676702430314479815162315237007830941560100947583697 . . . . . . . . . . . . . . . . . . . . [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) 59e570ff10f93a861500154d49106747053845cc . . . . . . . . . . . . . . . . [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 (21 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'course.staenz.com' . . . . . . . . . . . . . . . . [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) 00f000750063f2dbcde83bcc2ccf0b728427576b33a48d61778fbd75a638b1c768544bd88d0000016a9b178a12000004030046304402200b04986b05eb6a2c176aeec03dfdd7be7abb01226bef0e4bc64e90f71c02ce3302202f9c56f6d5fcd775a7b6f02e38f4f6164eb0dc19471971c493dad15ca5689de5007700747eda8331ad331091219cce254f4270c2bffd5e422008c6373579e6107bcc560000016a9b178bd700000403004830460221008d96beedf5ca95999c7c770d01c4742f1045a135c40c7ddcac3851c345bc16ef022100cb26df16197f35e6b8df802d04d01c0d91b8e6d570b752c553f57e0eacf9a258 . . . . [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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