dfnco.com
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:c9:2e:44:1f:64:fb:36:11:01:46:99:8f:8a:8c:00:66:5d 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=dfnco.com
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:c9:2e:44:1f:64:fb:36:11:01:46:99:8f:8a:8c:00:66:5dSerial Number (int): 329795111747137117658833707711788205762141
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: dc:79:aa:d2:23:95:2a:14:1f:d9:b1:a8:df:c1:14:d6:ab:69:77:59
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): f8:ba:0e:52:3e:af:a0:65:2b:30:93:57:cd:39:f1:41:04:d8:0f:38
Fingerprint (sha256): 98:b7:a2:9f:55:f5:22:96:6b:88:4f:cf:69:7b:dc:e8:9e:5d:a7:ce:b8:0e:4e:d1:0f:a4:1e:42:54:53:ad:95
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate dfnco.com
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for 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
dfnco.com
Other certificates including the domain name dfnco.com
(limited to 100 certificates)
Certificate
The complete raw certificate details for dfnco.com in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIGSDCCBTCgAwIBAgISA8kuRB9k+zYRAUaZj4qMAGZdMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0yMDAyMjUxMDAzMjVaFw0y MDA1MjUxMDAzMjVaMBQxEjAQBgNVBAMTCWRmbmNvLmNvbTCCAiIwDQYJKoZIhvcN AQEBBQADggIPADCCAgoCggIBAOce6fcMqKxAD3xaDquUgy8hPuhVqBfTVr/Shwe3 R9qGS/WWkGjWUzHDewW5C/kF8GEvSch+uwQ0/zTj40wS3v3IR3r2mJDeC49PxmgE u3OceCu07Vbf9fM0Od5whR7Zi114lWl4oU8t6P06WHpDmpBq2ANwWDAb0AwRcwy4 Yr7kU20n2wUpa2JrA3utFyDLaP55fV32PuGeCxW77z2ThNNY8sdjfzwFJ/XO93pR QG5L7XRsQZ0mZW8lGVu1+PpqZfK2WRArHq7GVd7sCgTWu/Q3IHG/qe3OpiSPXFH5 KCKaCcUPIRsnxhZleQm4a5srMBTvW6It8d75EsXH1E6jhx1cAld7XkVdc6G9sYq9 U2e/j7qfrl7WudZ+WFtVtJf9d5Exe7mSjlXx7GMG0nNf5G3lpELWCf4dvJvFjdZH 4VOpNxzaXfcTPJIUMZc3wHbZ6GlwaVospjw4iLJZvSYU1RHKESBj+5wxH6GWpAnO e5VHb5/G+3HoULFiA/Cy9GPMr4zU8AE1u8NhtauFwjmMgLXmsf7ILnI/wSJ8PFPM PdlQUIqEq9V5xH4k5Qv5pV4J37I3XGkG2hqsh3Sk2Z9057F45ZamkAUdrJ8exwpR TnJii7wXtb5FL0XAZ5damohLY6Kqcbvf/yz4Nky1vbN3gy5e3SMPt5VvQyuWRs2U 97HdAgMBAAGjggJcMIICWDAOBgNVHQ8BAf8EBAMCBaAwHQYDVR0lBBYwFAYIKwYB BQUHAwEGCCsGAQUFBwMCMAwGA1UdEwEB/wQCMAAwHQYDVR0OBBYEFNx5qtIjlSoU H9mxqN/BFNaraXdZMB8GA1UdIwQYMBaAFKhKamMEfd265tE5t6ZFZe/zqOyhMG8G CCsGAQUFBwEBBGMwYTAuBggrBgEFBQcwAYYiaHR0cDovL29jc3AuaW50LXgzLmxl dHNlbmNyeXB0Lm9yZzAvBggrBgEFBQcwAoYjaHR0cDovL2NlcnQuaW50LXgzLmxl dHNlbmNyeXB0Lm9yZy8wFAYDVR0RBA0wC4IJZGZuY28uY29tMEwGA1UdIARFMEMw CAYGZ4EMAQIBMDcGCysGAQQBgt8TAQEBMCgwJgYIKwYBBQUHAgEWGmh0dHA6Ly9j cHMubGV0c2VuY3J5cHQub3JnMIIBAgYKKwYBBAHWeQIEAgSB8wSB8ADuAHUA8JWk WfIA0YJAEC0vk4iOrUv+HUfjmeHQNKawqKqOsnMAAAFwfAQNfwAABAMARjBEAiBn c1aGgMn87ct9E4nzSDfi23d45bh2L8rJNw9MbEiBwgIgR7kv1pWueZwlYG9zoEjv FGkAxM7++4HHY32EGrV8emEAdQAHt1wb5X1o//Gwxh0jFce65ld8V5S3au68YToa adOiHAAAAXB8BA2uAAAEAwBGMEQCIENVcS4IRNlx4F7aoP9smYij3OCbw+RZnx73 lvhYr8PXAiADrO8FEuBZu82KV98XblfWE3TQ/WDShk6LOElA4B3cejANBgkqhkiG 9w0BAQsFAAOCAQEAdM4fseXRyxjglyXE4Nl0KEQVu9yOwMUBjj5IFC2qromrbEPl ZoFnfhVCzGrw+b+/zkeMjp44mN//o4turVx6M+uvOHi5CBB2LrcHZQSX5fhZDgJO 51TnN/ZIgPAPqg3bjAh0E+ftWmXK5OH1T6mik0tcdH7ZiY8XGGWbyrd1qReVNdl6 vL3knWofeFndJVHMdwzFUZx2Kgem3TZUUPKdv7nnQSQRxk3JxPgKo3FRpWaMkSlA V9LsociWJDr1e7PaMZE/q4iaBklV3psMvk8fvN2RBfSk9AgemtYMFeixt+Qgqv+K U0x2pU2/2DowPOcpjH/Plf/yY+wxDFRMRGJOjQ== -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEA5x7p9wyorEAPfFoOq5SD LyE+6FWoF9NWv9KHB7dH2oZL9ZaQaNZTMcN7BbkL+QXwYS9JyH67BDT/NOPjTBLe /chHevaYkN4Lj0/GaAS7c5x4K7TtVt/18zQ53nCFHtmLXXiVaXihTy3o/TpYekOa kGrYA3BYMBvQDBFzDLhivuRTbSfbBSlrYmsDe60XIMto/nl9XfY+4Z4LFbvvPZOE 01jyx2N/PAUn9c73elFAbkvtdGxBnSZlbyUZW7X4+mpl8rZZECsersZV3uwKBNa7 9Dcgcb+p7c6mJI9cUfkoIpoJxQ8hGyfGFmV5CbhrmyswFO9boi3x3vkSxcfUTqOH HVwCV3teRV1zob2xir1TZ7+Pup+uXta51n5YW1W0l/13kTF7uZKOVfHsYwbSc1/k beWkQtYJ/h28m8WN1kfhU6k3HNpd9xM8khQxlzfAdtnoaXBpWiymPDiIslm9JhTV EcoRIGP7nDEfoZakCc57lUdvn8b7cehQsWID8LL0Y8yvjNTwATW7w2G1q4XCOYyA teax/sgucj/BInw8U8w92VBQioSr1XnEfiTlC/mlXgnfsjdcaQbaGqyHdKTZn3Tn sXjllqaQBR2snx7HClFOcmKLvBe1vkUvRcBnl1qaiEtjoqpxu9//LPg2TLW9s3eD Ll7dIw+3lW9DK5ZGzZT3sd0CAwEAAQ== -----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 329795111747137117658833707711788205762141 . . . . . . . . [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 2020-02-25 10:03:25 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-05-25 10:03:25 +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 '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 942890427425621517211054543224147049086587587014091831954999208663590711991714389874527273595700806874261986078637176594745273376029774589599297328324705893076729454763117475989828569651763232844762709310695717605105032230606610982939972050742065787826027215940149512742350686567884231959550075198798031239074699651468757589762497525929937467248114406016985624385741383428924104941637008376549520631575652352410631703458360279217739055806496349318297597785560324837062857923781710384052826591412247721361302088819833569733455028996076140565889145081307275331481711141978738070474914316168053113560385989003894373193641065000715546433540088692524072877082502657796203622973788204003537335430183398845209920823919450021177258667044915607372714345536081319593623928236517136422562042001098095732310038002931033314052827347358293758565459053434950885380374070589475050144093573198956613003387409686175731938124912545715198040064502262542539710447761275529448171276705756723480028099456684165033391092459750109438431069870005024176819038744783490952774262208680290182273684204837095167432044950160507911129129338397193801391036196354640417733948076753604611286888766419913285095481724763858868313885221097193759783800720251333066159010269 . . . . . . . . . . . . . . . . . . . . [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) dc79aad223952a141fd9b1a8dfc114d6ab697759 . . . . . . . . . . . . . . . . [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 (13 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '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 (243 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (240 bytes) 00ee007500f095a459f200d18240102d2f93888ead4bfe1d47e399e1d034a6b0a8aa8eb273000001707c040d7f000004030046304402206773568680c9fcedcb7d1389f34837e2db7778e5b8762fcac9370f4c6c4881c2022047b92fd695ae799c25606f73a048ef146900c4cefefb81c7637d841ab57c7a6100750007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c000001707c040dae000004030046304402204355712e0844d971e05edaa0ff6c9988a3dce09bc3e4599f1ef796f858afc3d7022003acef0512e059bbcd8a57df176e57d61374d0fd60d2864e8b384940e01ddc7a . . . . [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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