www.project-a.com
Issued by R3
About this certificate
This digital certificate with serial number 03:ce:20:74:ac:36:3c:65:2e:f7:c2:4e:90:a5:36:3e:43:66 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.project-a.com
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:ce:20:74:ac:36:3c:65:2e:f7:c2:4e:90:a5:36:3e:43:66Serial Number (int): 331478166476166234789018553218234859799398
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: dc:99:a5:75:97:68:3f:75:f5:28:e8:70:37:1c:91:11:e4:fe:28:ff
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6
Fingerprint (sha1): 78:89:cf:79:2b:64:33:c5:87:e0:a6:f5:09:e6:cb:11:eb:48:9c:bb
Fingerprint (sha256): 89:db:8f:c4:e5:c0:fc:fa:f0:d0:7e:c4:a7:c5:10:a9:3c:9d:a3:08:83:06:33:72:ff:53:02:f8:65:61:dd:b0
Issuing Certificate URL: http://r3.i.lencr.org/
Revocation information
OCSP Server: http://r3.o.lencr.orgCheck the revocation status for certificate www.project-a.com
2
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for www.project-a.com
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
project-a.com
www.project-a.com
www.project-a.com
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Certificate
The complete raw certificate details for www.project-a.com in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIE/TCCA+WgAwIBAgISA84gdKw2PGUu98JOkKU2PkNmMA0GCSqGSIb3DQEBCwUA MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD EwJSMzAeFw0yMzA4MjYyMjQ0NDRaFw0yMzExMjQyMjQ0NDNaMBwxGjAYBgNVBAMT EXd3dy5wcm9qZWN0LWEuY29tMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKC AQEAmDRPU/IpQCcFllTh5Unh8oEr4aDYC+IbEwi+Ggv3n3QEyO0EStZDwxBUmFKF nW7eFcQlWZlOavju4V9ETMcl4oISVn70ckFQNbH2WTlZyy/8GBucsnqcJ0XYT05Y CMuqY0y2Ca8Q61CSYxl8hcwaYMS5UlpTKOjurZeermWl371s5FfkX0nNBa50TELL RzQckdlpz3+Riw1xe22E79Qy0Zx381lirnOVQXj9FsNS4twItD/8JGLP+9TEkF+0 1aRf3SKaAVqgILgvoSsL3D1tHRIrzf+kfIRJW7U8zMBdi3t8da4ETgEhvTV1PFRr 1Z8CgWAe/aX4pMuyPnUQnQkfWwIDAQABo4ICITCCAh0wDgYDVR0PAQH/BAQDAgWg MB0GA1UdJQQWMBQGCCsGAQUFBwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0G A1UdDgQWBBTcmaV1l2g/dfUo6HA3HJER5P4o/zAfBgNVHSMEGDAWgBQULrMXt1hW y65QCUDmH6+dixTCxjBVBggrBgEFBQcBAQRJMEcwIQYIKwYBBQUHMAGGFWh0dHA6 Ly9yMy5vLmxlbmNyLm9yZzAiBggrBgEFBQcwAoYWaHR0cDovL3IzLmkubGVuY3Iu b3JnLzArBgNVHREEJDAigg1wcm9qZWN0LWEuY29tghF3d3cucHJvamVjdC1hLmNv bTATBgNVHSAEDDAKMAgGBmeBDAECATCCAQMGCisGAQQB1nkCBAIEgfQEgfEA7wB1 ALc++yTfnE26dfI5xbpY9Gxd/ELPep81xJ4dCYEl7bSZAAABijQ8VvMAAAQDAEYw RAIgbn8bYxWFskAHQABVxNLvLr0O8zplLcA/EGVZjBMIuyACIHkPiFehYkO4dA8u jGSnISyumemIWLMvHRSSOADi8XhAAHYA6D7Q2j71BjUy51covIlryQPTy9ERa+zr aeF3fW0GvW4AAAGKNDxXBQAABAMARzBFAiBPN4dk2kDDr9rFqYLmPXdn9qae1Ryp gOcHOkb/qUjpPwIhAJ9TEiPZ0wubIsH+bxMMMZez+s7zONJaycWE0sKwPYSbMA0G CSqGSIb3DQEBCwUAA4IBAQATnf2++hoqjdKa6nnxfrp7D/wfcqJmBTpfZSnF+hHH 8Zx8pq9+ESB0FpowO0PCnbWnqSG16Hflgp4kF9gXuW9Siea7qNDFM42kiy9MFgw7 ApKPjbLFTwgNqxH6oGW8wWKxL/OrHfzo2hxWVSmEchLAEWcgLB/QmYg+EavRXhyj WmGptmVsW6WgN+8XnaCGIcNcPCDcdf72jVKKJXREhZ8y5HSsCWIqL3ajscB4lHeX BacPLeVNAfsQbawxvxl5FUH9GEE8Emd7NgoguDIXFuyO4r/Ts9ctcXfVnJh9yhyO NnlR7DIAHKIDaLRM2nRv5gS9h2UbNm8ALZOdy26/lGnA -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAmDRPU/IpQCcFllTh5Unh 8oEr4aDYC+IbEwi+Ggv3n3QEyO0EStZDwxBUmFKFnW7eFcQlWZlOavju4V9ETMcl 4oISVn70ckFQNbH2WTlZyy/8GBucsnqcJ0XYT05YCMuqY0y2Ca8Q61CSYxl8hcwa YMS5UlpTKOjurZeermWl371s5FfkX0nNBa50TELLRzQckdlpz3+Riw1xe22E79Qy 0Zx381lirnOVQXj9FsNS4twItD/8JGLP+9TEkF+01aRf3SKaAVqgILgvoSsL3D1t HRIrzf+kfIRJW7U8zMBdi3t8da4ETgEhvTV1PFRr1Z8CgWAe/aX4pMuyPnUQnQkf WwIDAQAB -----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 331478166476166234789018553218234859799398 . . . . . . . . [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 2023-08-26 22:44:44 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-11-24 22:44:43 +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.project-a.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 (2160 bits) . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 19214017315428790257032278260869470236767743488106709095133864546947568791053797943657347970549913876786794870396808513570300733382812270758014644340525071950590362651976648668459391397830819455850735360005799134292206407653572427391191764324802441414998992683638318168431826650240113767880908663741064119956629173373306175572778881977282783885215101713797907388552846712293537062608144665517750588101390313141776911967339403932383953656630260211702109582692427620319344554279008887070787443006949865047999939906232238207562867842563301254938723626694941501961332583174427908053836533636258621744793298252586677772123 . . . . . . . . . . . . . . . . . . . . [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) dc99a57597683f75f528e870371c9111e4fe28ff . . . . . . . . . . . . . . . . [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 (36 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'project-a.com' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.project-a.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 (12 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 1.3.6.1.4.1.11129.2.4.2 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (244 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes) 00ef007500b73efb24df9c4dba75f239c5ba58f46c5dfc42cf7a9f35c49e1d098125edb4990000018a343c56f3000004030046304402206e7f1b631585b24007400055c4d2ef2ebd0ef33a652dc03f1065598c1308bb200220790f8857a16243b8740f2e8c64a7212cae99e98858b32f1d14923800e2f17840007600e83ed0da3ef5063532e75728bc896bc903d3cbd1116beceb69e1777d6d06bd6e0000018a343c5705000004030047304502204f378764da40c3afdac5a982e63d7767f6a69ed51ca980e7073a46ffa948e93f0221009f531223d9d30b9b22c1fe6f130c3197b3facef338d25ac9c584d2c2b03d849b . . . . [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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