www.project-a.com
Issued by R3
About this certificate
This digital certificate with serial number 04:33:d0:49:0c:43:80:35:d3:d7:b7:6b:e5:aa:da:10:bc:dc 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): 04:33:d0:49:0c:43:80:35:d3:d7:b7:6b:e5:aa:da:10:bc:dcSerial Number (int): 366080403149539665054108499805594771832028
Serial Number lenght: 139 bits, 18 octets
SubjectKeyId: 65:c3:4b:41:af:7c:76:eb:a7:71:df:93:5a:4e:a3:44:f1:fc:74:31
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6
Fingerprint (sha1): f9:e3:17:18:53:87:6e:65:eb:de:59:6d:2b:bd:7e:28:f0:48:d2:df
Fingerprint (sha256): b5:c4:d7:70:f4:53:71:3a:a4:ab:2b:54:69:93:77:c3:44:c5:50:a9:41:74:ab:ab:c0:bc:e8:70:e9:c9:d8:ba
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+WgAwIBAgISBDPQSQxDgDXT17dr5araELzcMA0GCSqGSIb3DQEBCwUA MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD EwJSMzAeFw0yMzA2MjcwNTQ2MDdaFw0yMzA5MjUwNTQ2MDZaMBwxGjAYBgNVBAMT EXd3dy5wcm9qZWN0LWEuY29tMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKC AQEAnlLfA67mnWXDOuFst2Wv50+gtdbTNIXBEkdMZRCYqVZb5P/rvRzx8mmPZODf W2kZj+PAWUnhPMX0czabyfMUqON7UMETO6WRTEhmCjmhTeKrXuPntbZrFU1/xWUL Bs4XXfrWhfZF7dHO8kyPnRI+1OTU0rddr8CsWAxNe/DPy0JaBXfR6vsjOEboWlnU FwsZFKoJjGVyrQypRKLZq/bWyUM6b0ZxYVIsmXWrBQe5WidRvgjhy2Rpu4LjRRn7 DEuevL06oQlSzTxDDxYvAUu0oD7MXN0t5miSkRo2CmRDKxeT5u5o31Vu1JWYIk2z B6zY0hx1lymSOmesoSpYoMEHmQIDAQABo4ICITCCAh0wDgYDVR0PAQH/BAQDAgWg MB0GA1UdJQQWMBQGCCsGAQUFBwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0G A1UdDgQWBBRlw0tBr3x266dx35NaTqNE8fx0MTAfBgNVHSMEGDAWgBQULrMXt1hW y65QCUDmH6+dixTCxjBVBggrBgEFBQcBAQRJMEcwIQYIKwYBBQUHMAGGFWh0dHA6 Ly9yMy5vLmxlbmNyLm9yZzAiBggrBgEFBQcwAoYWaHR0cDovL3IzLmkubGVuY3Iu b3JnLzArBgNVHREEJDAigg1wcm9qZWN0LWEuY29tghF3d3cucHJvamVjdC1hLmNv bTATBgNVHSAEDDAKMAgGBmeBDAECATCCAQMGCisGAQQB1nkCBAIEgfQEgfEA7wB2 ALc++yTfnE26dfI5xbpY9Gxd/ELPep81xJ4dCYEl7bSZAAABiPuaNJoAAAQDAEcw RQIgBKhM7Tr5CrtMCAq+IO1khOZ3I4J1C1Hn+tJfSWEASEsCIQDdGrvP/LV15h96 6S/fcnPwteSQxMU6+jj9JPFJKKpZdQB1AK33vvp8/xDIi509nB4+GGq0Zyldz7EM JMqFhjTr3IKKAAABiPuaNNAAAAQDAEYwRAIgSoWcA127DJl1khp9MMwoFKYsD4We Nnh3VS+C9Ad+kr4CIDYf00Fl3XiAFcAM3oGBTlvIipZksNngv4ZZ5sumebX+MA0G CSqGSIb3DQEBCwUAA4IBAQBY4sL3XnqVdREFpzkbTkPZFt1wYQaamXQFfQnOx7S9 fdAMO75jgwt5pwbBwQJephv7CFbWLTP7fOgKpfLUbCStLfea/L3nn210FlkpOPDn cuQrHOyzkbzhocpf64Oo7MfekuEoCDBWFQJO+BeDnWcjSNjjm5xpFAi6SRVgbpSv 81TfRKpEi/yQph2gt5REcmEioF4UGU3Vf6lKfKT/Nwv+L7xVotURdTs6FbyC9rPX s0mlB/tokUfGureSb5iAoqnNQZCFtcGhM3U4OR2e2uJ9OcLHhnoecWaUo49g1zNy FFE0EOiAMzVNWmTjtQnzwwYRdGkz1GmRpsYnDU1v7+/3 -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAnlLfA67mnWXDOuFst2Wv 50+gtdbTNIXBEkdMZRCYqVZb5P/rvRzx8mmPZODfW2kZj+PAWUnhPMX0czabyfMU qON7UMETO6WRTEhmCjmhTeKrXuPntbZrFU1/xWULBs4XXfrWhfZF7dHO8kyPnRI+ 1OTU0rddr8CsWAxNe/DPy0JaBXfR6vsjOEboWlnUFwsZFKoJjGVyrQypRKLZq/bW yUM6b0ZxYVIsmXWrBQe5WidRvgjhy2Rpu4LjRRn7DEuevL06oQlSzTxDDxYvAUu0 oD7MXN0t5miSkRo2CmRDKxeT5u5o31Vu1JWYIk2zB6zY0hx1lymSOmesoSpYoMEH mQIDAQAB -----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 366080403149539665054108499805594771832028 . . . . . . . . [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 2023-06-27 05:46:07 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-09-25 05:46:06 +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 19986517471748341784052749250172961798169485601688164142645441381461698326294034981536768928564190364700080651949399641825702678340317215939998677094163481622386497986102577551185142842225633955440112515333360174297033635634742376215561721763382140561432612128462069177813657537645628740289119261231587835403085110153415147858980521062021099618565419560779647756616827820555745476237754491839224606474712670601500203582824406695445605847920383593755719506286187621567402735584909099545845689637468792383976796665572688679741002961173699371630680786862064718842546572136746568937629667548693449827579086123476401063833 . . . . . . . . . . . . . . . . . . . . [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) 65c34b41af7c76eba771df935a4ea344f1fc7431 . . . . . . . . . . . . . . . . [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) 00ef007600b73efb24df9c4dba75f239c5ba58f46c5dfc42cf7a9f35c49e1d098125edb49900000188fb9a349a0000040300473045022004a84ced3af90abb4c080abe20ed6484e6772382750b51e7fad25f496100484b022100dd1abbcffcb575e61f7ae92fdf7273f0b5e490c4c53afa38fd24f14928aa5975007500adf7befa7cff10c88b9d3d9c1e3e186ab467295dcfb10c24ca858634ebdc828a00000188fb9a34d0000004030046304402204a859c035dbb0c9975921a7d30cc2814a62c0f859e367877552f82f4077e92be0220361fd34165dd788015c00cde81814e5bc88a9664b0d9e0bf8659e6cba679b5fe . . . . [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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