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:43:66
Serial 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.org

Check 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

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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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