www.dfnco.com
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 04:29:ac:8f:57:55:ab:c6:14:9c:1c:58:88:2e:88:a8:b0:00 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=www.dfnco.com
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 04:29:ac:8f:57:55:ab:c6:14:9c:1c:58:88:2e:88:a8:b0:00Serial Number (int): 362630092255882430331710885137423119462400
Serial Number lenght: 139 bits, 18 octets
SubjectKeyId: 28:09:10:77:9f:f5:b7:36:a6:75:19:20:37:3f:5c:61:96:1d:68:de
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 6a:bf:9c:78:6f:4e:ae:e1:d7:5f:85:16:60:fb:a2:b4:55:f5:fd:1d
Fingerprint (sha256): 6c:95:5e:1e:97:12:77:b0:5e:a5:80:9e:a2:6a:a4:1f:bf:65:2c:11:56:3e:7f:e8:9b:d5:1e:fe:fe:09:f9:69
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate www.dfnco.com
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for www.dfnco.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
www.dfnco.com
Other certificates including the domain name dfnco.com
(limited to 100 certificates)
Certificate
The complete raw certificate details for www.dfnco.com in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIGUjCCBTqgAwIBAgISBCmsj1dVq8YUnBxYiC6IqLAAMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0yMDAzMDEyMDE2MjdaFw0y MDA1MzAyMDE2MjdaMBgxFjAUBgNVBAMTDXd3dy5kZm5jby5jb20wggIiMA0GCSqG SIb3DQEBAQUAA4ICDwAwggIKAoICAQDE4leYeKFL8E889oDLnXli5ain3odMe4bh YIN83AZJsK+1LlYx+TkHmY2OMpxzqNJrLPu9zevEzr25hl09B7NgVVvpp/6s75ja TrqJ8WeRu4YjSm0o4TPw87ksn0IlIraSlEUUXTpjAURFAzGGTuAsdsSDbM1cPiks /Fg5qu1GN7lHGiOY4iUDyvHGsj4+xUv1r8+HOv7DtjdNiLp6woGlMrx+tCki/zUS ofgDYejXtb1rU0ZToRuHh7cqmalir/Gjbd0Ac0430HkQxTc2o+2PBnNeQ8BMD9LA R3o0opeqnz8PQaSbXUwSbc1SuKSiplHkbdsvcmUjqGkdIr+EdmRUZ7LnAZqLtIIs DFsg2ZVKheLhL0GFJI9gbabpcBhSWMN5pEJCRmsOmjMSuthTL+MgWBxlIkcolJIX 5E3DYqs7cZgIlHvr/uPo1H8x4ceMHSTl8567tXPgQtMEyn7dWXHwaQfiJ2DLHm9h ylA1QndqLGv8Rr5TekNMpcEV5wTgKH4FhJy1zZ1XOTRIOGYYRMaclg2uZasle7Pl a7BFvK85zQcuuD+fXk1Piy35oZ3uQlJqaRyVfQzUQXZt2S4GFJTHuC+tsT0Vswrc y1yJ6Mrn0L2nxLOJ9FvRYQvgmLAHkV531LO4ePuyZlSEsOUjmiZjrT5bPvWF72tx 18iXJny67wIDAQABo4ICYjCCAl4wDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQWMBQG CCsGAQUFBwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQWBBQoCRB3 n/W3NqZ1GSA3P1xhlh1o3jAfBgNVHSMEGDAWgBSoSmpjBH3duubRObemRWXv86js oTBvBggrBgEFBQcBAQRjMGEwLgYIKwYBBQUHMAGGImh0dHA6Ly9vY3NwLmludC14 My5sZXRzZW5jcnlwdC5vcmcwLwYIKwYBBQUHMAKGI2h0dHA6Ly9jZXJ0LmludC14 My5sZXRzZW5jcnlwdC5vcmcvMBgGA1UdEQQRMA+CDXd3dy5kZm5jby5jb20wTAYD VR0gBEUwQzAIBgZngQwBAgEwNwYLKwYBBAGC3xMBAQEwKDAmBggrBgEFBQcCARYa aHR0cDovL2Nwcy5sZXRzZW5jcnlwdC5vcmcwggEEBgorBgEEAdZ5AgQCBIH1BIHy APAAdgDnEvKwN34aYvuOyQxhhPHqezfLVh0RJlvz4PNL8kFUbgAAAXCX9RjjAAAE AwBHMEUCIGPGuQ5IGWanlKD8kI5FiWoQn9HasZWT3L5g/NzPoM2dAiEA2FNz74pV 7HgodwrEqkQn5l1gJwoiaDa4ynIJpWRv8tcAdgAHt1wb5X1o//Gwxh0jFce65ld8 V5S3au68YToaadOiHAAAAXCX9RkRAAAEAwBHMEUCIA5R9EOp6+mHU18BPNrmrBbT +lRrpmmksOs4zuDJcX0hAiEAkidrs8fz1i5neqXdbhc7JjLLMONywg53MbOmZDR/ 4tkwDQYJKoZIhvcNAQELBQADggEBAD0kPl+Vd6/dsxFrPMTilnCfoz6RQC3XngYS Q4Zhv0sVVeZBds5c4HmHOajtjXTHVmtBccnWO0X4vp+k+mZ5IpiRkxaJ59GHstgc ruRxudRelvVgWKZvMz5c3OSa+ufnTv+SQwx+IpZ3mXpA8OYv/UINB8CxdOuyZ2Y3 Z7LSewK255yfU+V35BZUhU9jkruz8haLP3kity3hBDWDHl/vB6lgGoFxNJbeNg/B ninuGR91vWGwoM2oOAdki690l6VCAiSfEFy+JpAJg+eQsRfcmxTojdBdlWH7wCgK 8YsrJ8D45x7QUBAD6wELBuzNZGfYl0TpMKbVB4dywMZUFelp7mE= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAxOJXmHihS/BPPPaAy515 YuWop96HTHuG4WCDfNwGSbCvtS5WMfk5B5mNjjKcc6jSayz7vc3rxM69uYZdPQez YFVb6af+rO+Y2k66ifFnkbuGI0ptKOEz8PO5LJ9CJSK2kpRFFF06YwFERQMxhk7g LHbEg2zNXD4pLPxYOartRje5RxojmOIlA8rxxrI+PsVL9a/Phzr+w7Y3TYi6esKB pTK8frQpIv81EqH4A2Ho17W9a1NGU6Ebh4e3KpmpYq/xo23dAHNON9B5EMU3NqPt jwZzXkPATA/SwEd6NKKXqp8/D0Gkm11MEm3NUrikoqZR5G3bL3JlI6hpHSK/hHZk VGey5wGai7SCLAxbINmVSoXi4S9BhSSPYG2m6XAYUljDeaRCQkZrDpozErrYUy/j IFgcZSJHKJSSF+RNw2KrO3GYCJR76/7j6NR/MeHHjB0k5fOeu7Vz4ELTBMp+3Vlx 8GkH4idgyx5vYcpQNUJ3aixr/Ea+U3pDTKXBFecE4Ch+BYSctc2dVzk0SDhmGETG nJYNrmWrJXuz5WuwRbyvOc0HLrg/n15NT4st+aGd7kJSamkclX0M1EF2bdkuBhSU x7gvrbE9FbMK3MtciejK59C9p8SzifRb0WEL4JiwB5Fed9SzuHj7smZUhLDlI5om Y60+Wz71he9rcdfIlyZ8uu8CAwEAAQ== -----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 362630092255882430331710885137423119462400 . . . . . . . . [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 2020-03-01 20:16:27 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-05-30 20:16:27 +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.dfnco.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 803217250973778823690455100144161193609599801320439754687255588367905894216160116036041187709101854669443696411215796173802659480552654726574609101835827589078308170147146246072026461447025455912922210297758467348922419551389541435481893301182107384975979150431170647644771014814271412992217552105190176622788390840668027323472107987759628933780227564170140319637661905963083816275759230757967021954304079334854178955900522082398083335359069889995399120884963649002819795519246770884703977901983495954411230788142437945368228718588085159990577833169714868870750911253371493868987943260507837050655013581710454150094146866203820977663862148571970116971102025341791620855234552014305438507362968407750819117889047444163800542500853632970805927258952442054508789989994835847139599383440356079032960360510632707095700841188242863618189127377770557186980093265147326437120902960005811511606285282474322499716263490046298197537171931561827981574356108947019400045274990147558623750080833496810255203702885548833342522332622858855730323717096960747078413545738853121919076154438087522650924116887053491774803536259023905712720544092358099201313011805621528804332872745660122328455747579064400994808778393258819570155934717916661698606709487 . . . . . . . . . . . . . . . . . . . . [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) 280910779ff5b736a6751920373f5c61961d68de . . . . . . . . . . . . . . . . [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 (17 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.dfnco.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) 00f0007600e712f2b0377e1a62fb8ec90c6184f1ea7b37cb561d11265bf3e0f34bf241546e0000017097f518e30000040300473045022063c6b90e481966a794a0fc908e45896a109fd1dab19593dcbe60fcdccfa0cd9d022100d85373ef8a55ec7828770ac4aa4427e65d60270a226836b8ca7209a5646ff2d700760007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c0000017097f51911000004030047304502200e51f443a9ebe987535f013cdae6ac16d3fa546ba669a4b0eb38cee0c9717d2102210092276bb3c7f3d62e677aa5dd6e173b2632cb30e372c20e7731b3a664347fe2d9 . . . . [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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